942 lines
21 KiB
C++
942 lines
21 KiB
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=core,alpha.core.IdenticalExpr -verify %s
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/* Only one expected warning per function allowed at the very end. */
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/* '!=' operator*/
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/* '!=' with float */
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int checkNotEqualFloatLiteralCompare1(void) {
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return (5.14F != 5.14F); // no warning
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}
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int checkNotEqualFloatLiteralCompare2(void) {
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return (6.14F != 7.14F); // no warning
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}
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int checkNotEqualFloatDeclCompare1(void) {
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float f = 7.1F;
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float g = 7.1F;
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return (f != g); // no warning
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}
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int checkNotEqualFloatDeclCompare12(void) {
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float f = 7.1F;
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return (f != f); // no warning
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}
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int checkNotEqualFloatDeclCompare3(void) {
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float f = 7.1F;
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return (f != 7.1F); // no warning
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}
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int checkNotEqualFloatDeclCompare4(void) {
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float f = 7.1F;
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return (7.1F != f); // no warning
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}
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int checkNotEqualFloatDeclCompare5(void) {
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float f = 7.1F;
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int t = 7;
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return (t != f); // no warning
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}
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int checkNotEqualFloatDeclCompare6(void) {
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float f = 7.1F;
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int t = 7;
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return (f != t); // no warning
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}
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int checkNotEqualCastFloatDeclCompare11(void) {
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float f = 7.1F;
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return ((int)f != (int)f); // expected-warning {{comparison of identical expressions always evaluates to false}}
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}
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int checkNotEqualCastFloatDeclCompare12(void) {
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float f = 7.1F;
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return ((char)f != (int)f); // no warning
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}
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int checkNotEqualBinaryOpFloatCompare1(void) {
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int res;
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float f= 3.14F;
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res = (f + 3.14F != f + 3.14F); // no warning
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return (0);
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}
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int checkNotEqualBinaryOpFloatCompare2(void) {
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float f = 7.1F;
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float g = 7.1F;
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return (f + 3.14F != g + 3.14F); // no warning
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}
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int checkNotEqualBinaryOpFloatCompare3(void) {
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int res;
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float f= 3.14F;
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res = ((int)f + 3.14F != (int)f + 3.14F); // no warning
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return (0);
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}
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int checkNotEqualBinaryOpFloatCompare4(void) {
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int res;
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float f= 3.14F;
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res = ((int)f + 3.14F != (char)f + 3.14F); // no warning
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return (0);
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}
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int checkNotEqualNestedBinaryOpFloatCompare1(void) {
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int res;
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int t= 1;
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int u= 2;
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float f= 3.14F;
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res = (((int)f + (3.14F - u)*t) != ((int)f + (3.14F - u)*t)); // no warning
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return (0);
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}
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int checkNotEqualNestedBinaryOpFloatCompare2(void) {
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int res;
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int t= 1;
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int u= 2;
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float f= 3.14F;
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res = (((int)f + (u - 3.14F)*t) != ((int)f + (3.14F - u)*t)); // no warning
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return (0);
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}
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int checkNotEqualNestedBinaryOpFloatCompare3(void) {
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int res;
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int t= 1;
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int u= 2;
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float f= 3.14F;
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res = (((int)f + (u - 3.14F)*t) != ((int)f + (3.14F - u)*(f + t != f + t))); // no warning
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return (0);
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}
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/* end '!=' with float*/
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/* '!=' with int*/
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int checkNotEqualIntLiteralCompare1(void) {
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return (5 != 5); // expected-warning {{comparison of identical expressions always evaluates to false}}
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}
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int checkNotEqualIntLiteralCompare2(void) {
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return (6 != 7); // no warning
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}
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int checkNotEqualIntDeclCompare1(void) {
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int f = 7;
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int g = 7;
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return (f != g); // no warning
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}
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int checkNotEqualIntDeclCompare3(void) {
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int f = 7;
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return (f != 7); // no warning
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}
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int checkNotEqualIntDeclCompare4(void) {
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int f = 7;
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return (7 != f); // no warning
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}
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int checkNotEqualCastIntDeclCompare11(void) {
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int f = 7;
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return ((int)f != (int)f); // expected-warning {{comparison of identical expressions always evaluates to false}}
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}
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int checkNotEqualCastIntDeclCompare12(void) {
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int f = 7;
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return ((char)f != (int)f); // no warning
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}
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int checkNotEqualBinaryOpIntCompare1(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 4;
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res = (f + 4 != f + 4); // expected-warning {{comparison of identical expressions always evaluates to false}}
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return (0);
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}
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int checkNotEqualBinaryOpIntCompare2(void) {
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int f = 7;
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int g = 7;
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return (f + 4 != g + 4); // no warning
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}
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int checkNotEqualBinaryOpIntCompare3(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 4;
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res = ((int)f + 4 != (int)f + 4); // expected-warning {{comparison of identical expressions always evaluates to false}}
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return (0);
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}
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int checkNotEqualBinaryOpIntCompare4(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 4;
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res = ((int)f + 4 != (char)f + 4); // no warning
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return (0);
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}
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int checkNotEqualBinaryOpIntCompare5(void) {
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int res;
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int t= 1;
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int u= 2;
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res = (u + t != u + t); // expected-warning {{comparison of identical expressions always evaluates to false}}
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return (0);
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}
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int checkNotEqualNestedBinaryOpIntCompare1(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 3;
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res = (((int)f + (3 - u)*t) != ((int)f + (3 - u)*t)); // expected-warning {{comparison of identical expressions always evaluates to false}}
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return (0);
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}
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int checkNotEqualNestedBinaryOpIntCompare2(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 3;
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res = (((int)f + (u - 3)*t) != ((int)f + (3 - u)*t)); // no warning
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return (0);
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}
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int checkNotEqualNestedBinaryOpIntCompare3(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 3;
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res = (((int)f + (u - 3)*t) != ((int)f + (3 - u)*(t + 1 != t + 1))); // expected-warning {{comparison of identical expressions always evaluates to false}}
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return (0);
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}
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/* end '!=' int */
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/* '!=' with int pointer */
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int checkNotEqualIntPointerLiteralCompare1(void) {
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int* p = 0;
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return (p != 0); // no warning
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}
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int checkNotEqualIntPointerLiteralCompare2(void) {
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return (6 != 7); // no warning
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}
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int checkNotEqualIntPointerDeclCompare1(void) {
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int k = 3;
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int* f = &k;
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int* g = &k;
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return (f != g); // no warning
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}
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int checkNotEqualCastIntPointerDeclCompare11(void) {
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int k = 7;
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int* f = &k;
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return ((int*)f != (int*)f); // expected-warning {{comparison of identical expressions always evaluates to false}}
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}
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int checkNotEqualCastIntPointerDeclCompare12(void) {
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int k = 7;
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int* f = &k;
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return ((int*)((char*)f) != (int*)f); // no warning
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}
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int checkNotEqualBinaryOpIntPointerCompare1(void) {
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int k = 7;
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int res;
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int* f= &k;
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res = (f + 4 != f + 4); // expected-warning {{comparison of identical expressions always evaluates to false}}
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return (0);
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}
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int checkNotEqualBinaryOpIntPointerCompare2(void) {
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int k = 7;
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int* f = &k;
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int* g = &k;
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return (f + 4 != g + 4); // no warning
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}
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int checkNotEqualBinaryOpIntPointerCompare3(void) {
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int k = 7;
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int res;
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int* f= &k;
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res = ((int*)f + 4 != (int*)f + 4); // expected-warning {{comparison of identical expressions always evaluates to false}}
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return (0);
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}
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int checkNotEqualBinaryOpIntPointerCompare4(void) {
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int k = 7;
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int res;
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int* f= &k;
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res = ((int*)f + 4 != (int*)((char*)f) + 4); // no warning
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return (0);
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}
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int checkNotEqualNestedBinaryOpIntPointerCompare1(void) {
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int res;
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int k = 7;
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int t= 1;
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int* u= &k+2;
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int* f= &k+3;
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res = ((f + (3)*t) != (f + (3)*t)); // expected-warning {{comparison of identical expressions always evaluates to false}}
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return (0);
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}
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int checkNotEqualNestedBinaryOpIntPointerCompare2(void) {
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int res;
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int k = 7;
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int t= 1;
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int* u= &k+2;
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int* f= &k+3;
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res = (((3)*t + f) != (f + (3)*t)); // no warning
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return (0);
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}
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/* end '!=' int* */
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/* end '!=' */
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/* EQ operator */
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int checkEqualIntPointerDeclCompare(void) {
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int k = 3;
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int* f = &k;
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int* g = &k;
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return (f == g); // no warning
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}
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int checkEqualIntPointerDeclCompare0(void) {
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int k = 3;
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int* f = &k;
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return (f+1 == f+1); // expected-warning {{comparison of identical expressions always evaluates to true}}
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}
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/* EQ with float*/
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int checkEqualFloatLiteralCompare1(void) {
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return (5.14F == 5.14F); // no warning
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}
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int checkEqualFloatLiteralCompare2(void) {
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return (6.14F == 7.14F); // no warning
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}
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int checkEqualFloatDeclCompare1(void) {
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float f = 7.1F;
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float g = 7.1F;
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return (f == g); // no warning
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}
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int checkEqualFloatDeclCompare12(void) {
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float f = 7.1F;
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return (f == f); // no warning
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}
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int checkEqualFloatDeclCompare3(void) {
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float f = 7.1F;
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return (f == 7.1F); // no warning
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}
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int checkEqualFloatDeclCompare4(void) {
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float f = 7.1F;
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return (7.1F == f); // no warning
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}
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int checkEqualFloatDeclCompare5(void) {
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float f = 7.1F;
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int t = 7;
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return (t == f); // no warning
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}
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int checkEqualFloatDeclCompare6(void) {
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float f = 7.1F;
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int t = 7;
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return (f == t); // no warning
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}
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int checkEqualCastFloatDeclCompare11(void) {
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float f = 7.1F;
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return ((int)f == (int)f); // expected-warning {{comparison of identical expressions always evaluates to true}}
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}
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int checkEqualCastFloatDeclCompare12(void) {
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float f = 7.1F;
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return ((char)f == (int)f); // no warning
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}
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int checkEqualBinaryOpFloatCompare1(void) {
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int res;
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float f= 3.14F;
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res = (f + 3.14F == f + 3.14F); // no warning
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return (0);
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}
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int checkEqualBinaryOpFloatCompare2(void) {
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float f = 7.1F;
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float g = 7.1F;
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return (f + 3.14F == g + 3.14F); // no warning
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}
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int checkEqualBinaryOpFloatCompare3(void) {
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int res;
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float f= 3.14F;
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res = ((int)f + 3.14F == (int)f + 3.14F); // no warning
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return (0);
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}
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int checkEqualBinaryOpFloatCompare4(void) {
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int res;
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float f= 3.14F;
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res = ((int)f + 3.14F == (char)f + 3.14F); // no warning
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return (0);
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}
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int checkEqualNestedBinaryOpFloatCompare1(void) {
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int res;
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int t= 1;
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int u= 2;
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float f= 3.14F;
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res = (((int)f + (3.14F - u)*t) == ((int)f + (3.14F - u)*t)); // no warning
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return (0);
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}
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int checkEqualNestedBinaryOpFloatCompare2(void) {
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int res;
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int t= 1;
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int u= 2;
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float f= 3.14F;
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res = (((int)f + (u - 3.14F)*t) == ((int)f + (3.14F - u)*t)); // no warning
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return (0);
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}
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int checkEqualNestedBinaryOpFloatCompare3(void) {
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int res;
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int t= 1;
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int u= 2;
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float f= 3.14F;
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res = (((int)f + (u - 3.14F)*t) == ((int)f + (3.14F - u)*(f + t == f + t))); // no warning
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return (0);
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}
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/* Equal with int*/
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int checkEqualIntLiteralCompare1(void) {
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return (5 == 5); // expected-warning {{comparison of identical expressions always evaluates to true}}
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}
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int checkEqualIntLiteralCompare2(void) {
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return (6 == 7); // no warning
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}
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int checkEqualIntDeclCompare1(void) {
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int f = 7;
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int g = 7;
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return (f == g); // no warning
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}
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int checkEqualCastIntDeclCompare11(void) {
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int f = 7;
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return ((int)f == (int)f); // expected-warning {{comparison of identical expressions always evaluates to true}}
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}
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int checkEqualCastIntDeclCompare12(void) {
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int f = 7;
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return ((char)f == (int)f); // no warning
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}
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int checkEqualIntDeclCompare3(void) {
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int f = 7;
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return (f == 7); // no warning
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}
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int checkEqualIntDeclCompare4(void) {
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int f = 7;
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return (7 == f); // no warning
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}
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int checkEqualBinaryOpIntCompare1(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 4;
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res = (f + 4 == f + 4); // expected-warning {{comparison of identical expressions always evaluates to true}}
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return (0);
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}
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int checkEqualBinaryOpIntCompare2(void) {
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int f = 7;
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int g = 7;
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return (f + 4 == g + 4); // no warning
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}
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int checkEqualBinaryOpIntCompare3(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 4;
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res = ((int)f + 4 == (int)f + 4); // expected-warning {{comparison of identical expressions always evaluates to true}}
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return (0);
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}
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int checkEqualBinaryOpIntCompare4(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 4;
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res = ((int)f + 4 == (char)f + 4); // no warning
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return (0);
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}
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int checkEqualBinaryOpIntCompare5(void) {
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int res;
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int t= 1;
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int u= 2;
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res = (u + t == u + t); // expected-warning {{comparison of identical expressions always evaluates to true}}
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return (0);
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}
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int checkEqualNestedBinaryOpIntCompare1(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 3;
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res = (((int)f + (3 - u)*t) == ((int)f + (3 - u)*t)); // expected-warning {{comparison of identical expressions always evaluates to true}}
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return (0);
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}
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int checkEqualNestedBinaryOpIntCompare2(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 3;
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res = (((int)f + (u - 3)*t) == ((int)f + (3 - u)*t)); // no warning
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return (0);
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}
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int checkEqualNestedBinaryOpIntCompare3(void) {
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int res;
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int t= 1;
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int u= 2;
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int f= 3;
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res = (((int)f + (u - 3)*t) == ((int)f + (3 - u)*(t + 1 == t + 1))); // expected-warning {{comparison of identical expressions always evaluates to true}}
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return (0);
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}
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/* end EQ int */
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/* end EQ */
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/* LT */
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/* LT with float */
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int checkLessThanFloatLiteralCompare1(void) {
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return (5.14F < 5.14F); // expected-warning {{comparison of identical expressions always evaluates to false}}
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}
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int checkLessThanFloatLiteralCompare2(void) {
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return (6.14F < 7.14F); // no warning
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}
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int checkLessThanFloatDeclCompare1(void) {
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float f = 7.1F;
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float g = 7.1F;
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return (f < g); // no warning
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}
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int checkLessThanFloatDeclCompare12(void) {
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float f = 7.1F;
|
|
return (f < f); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
}
|
|
|
|
int checkLessThanFloatDeclCompare3(void) {
|
|
float f = 7.1F;
|
|
return (f < 7.1F); // no warning
|
|
}
|
|
|
|
int checkLessThanFloatDeclCompare4(void) {
|
|
float f = 7.1F;
|
|
return (7.1F < f); // no warning
|
|
}
|
|
|
|
int checkLessThanFloatDeclCompare5(void) {
|
|
float f = 7.1F;
|
|
int t = 7;
|
|
return (t < f); // no warning
|
|
}
|
|
|
|
int checkLessThanFloatDeclCompare6(void) {
|
|
float f = 7.1F;
|
|
int t = 7;
|
|
return (f < t); // no warning
|
|
}
|
|
|
|
|
|
int checkLessThanCastFloatDeclCompare11(void) {
|
|
float f = 7.1F;
|
|
return ((int)f < (int)f); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
}
|
|
int checkLessThanCastFloatDeclCompare12(void) {
|
|
float f = 7.1F;
|
|
return ((char)f < (int)f); // no warning
|
|
}
|
|
int checkLessThanBinaryOpFloatCompare1(void) {
|
|
int res;
|
|
float f= 3.14F;
|
|
res = (f + 3.14F < f + 3.14F); // no warning
|
|
return (0);
|
|
}
|
|
int checkLessThanBinaryOpFloatCompare2(void) {
|
|
float f = 7.1F;
|
|
float g = 7.1F;
|
|
return (f + 3.14F < g + 3.14F); // no warning
|
|
}
|
|
int checkLessThanBinaryOpFloatCompare3(void) {
|
|
int res;
|
|
float f= 3.14F;
|
|
res = ((int)f + 3.14F < (int)f + 3.14F); // no warning
|
|
return (0);
|
|
}
|
|
int checkLessThanBinaryOpFloatCompare4(void) {
|
|
int res;
|
|
float f= 3.14F;
|
|
res = ((int)f + 3.14F < (char)f + 3.14F); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkLessThanNestedBinaryOpFloatCompare1(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
float f= 3.14F;
|
|
res = (((int)f + (3.14F - u)*t) < ((int)f + (3.14F - u)*t)); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkLessThanNestedBinaryOpFloatCompare2(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
float f= 3.14F;
|
|
res = (((int)f + (u - 3.14F)*t) < ((int)f + (3.14F - u)*t)); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkLessThanNestedBinaryOpFloatCompare3(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
float f= 3.14F;
|
|
res = (((int)f + (u - 3.14F)*t) < ((int)f + (3.14F - u)*(f + t < f + t))); // no warning
|
|
return (0);
|
|
}
|
|
|
|
/* end LT with float */
|
|
|
|
/* LT with int */
|
|
|
|
|
|
int checkLessThanIntLiteralCompare1(void) {
|
|
return (5 < 5); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
}
|
|
|
|
int checkLessThanIntLiteralCompare2(void) {
|
|
return (6 < 7); // no warning
|
|
}
|
|
|
|
int checkLessThanIntDeclCompare1(void) {
|
|
int f = 7;
|
|
int g = 7;
|
|
return (f < g); // no warning
|
|
}
|
|
|
|
int checkLessThanIntDeclCompare3(void) {
|
|
int f = 7;
|
|
return (f < 7); // no warning
|
|
}
|
|
|
|
int checkLessThanIntDeclCompare4(void) {
|
|
int f = 7;
|
|
return (7 < f); // no warning
|
|
}
|
|
|
|
int checkLessThanIntDeclCompare5(void) {
|
|
int f = 7;
|
|
int t = 7;
|
|
return (t < f); // no warning
|
|
}
|
|
|
|
int checkLessThanIntDeclCompare6(void) {
|
|
int f = 7;
|
|
int t = 7;
|
|
return (f < t); // no warning
|
|
}
|
|
|
|
int checkLessThanCastIntDeclCompare11(void) {
|
|
int f = 7;
|
|
return ((int)f < (int)f); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
}
|
|
int checkLessThanCastIntDeclCompare12(void) {
|
|
int f = 7;
|
|
return ((char)f < (int)f); // no warning
|
|
}
|
|
int checkLessThanBinaryOpIntCompare1(void) {
|
|
int res;
|
|
int f= 3;
|
|
res = (f + 3 < f + 3); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
return (0);
|
|
}
|
|
int checkLessThanBinaryOpIntCompare2(void) {
|
|
int f = 7;
|
|
int g = 7;
|
|
return (f + 3 < g + 3); // no warning
|
|
}
|
|
int checkLessThanBinaryOpIntCompare3(void) {
|
|
int res;
|
|
int f= 3;
|
|
res = ((int)f + 3 < (int)f + 3); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
return (0);
|
|
}
|
|
int checkLessThanBinaryOpIntCompare4(void) {
|
|
int res;
|
|
int f= 3;
|
|
res = ((int)f + 3 < (char)f + 3); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkLessThanNestedBinaryOpIntCompare1(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
int f= 3;
|
|
res = (((int)f + (3 - u)*t) < ((int)f + (3 - u)*t)); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
return (0);
|
|
}
|
|
|
|
int checkLessThanNestedBinaryOpIntCompare2(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
int f= 3;
|
|
res = (((int)f + (u - 3)*t) < ((int)f + (3 - u)*t)); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkLessThanNestedBinaryOpIntCompare3(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
int f= 3;
|
|
res = (((int)f + (u - 3)*t) < ((int)f + (3 - u)*(t + u < t + u))); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
return (0);
|
|
}
|
|
|
|
/* end LT with int */
|
|
|
|
/* end LT */
|
|
|
|
|
|
/* GT */
|
|
|
|
/* GT with float */
|
|
|
|
int checkGreaterThanFloatLiteralCompare1(void) {
|
|
return (5.14F > 5.14F); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
}
|
|
|
|
int checkGreaterThanFloatLiteralCompare2(void) {
|
|
return (6.14F > 7.14F); // no warning
|
|
}
|
|
|
|
int checkGreaterThanFloatDeclCompare1(void) {
|
|
float f = 7.1F;
|
|
float g = 7.1F;
|
|
|
|
return (f > g); // no warning
|
|
}
|
|
|
|
int checkGreaterThanFloatDeclCompare12(void) {
|
|
float f = 7.1F;
|
|
return (f > f); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
}
|
|
|
|
|
|
int checkGreaterThanFloatDeclCompare3(void) {
|
|
float f = 7.1F;
|
|
return (f > 7.1F); // no warning
|
|
}
|
|
|
|
int checkGreaterThanFloatDeclCompare4(void) {
|
|
float f = 7.1F;
|
|
return (7.1F > f); // no warning
|
|
}
|
|
|
|
int checkGreaterThanFloatDeclCompare5(void) {
|
|
float f = 7.1F;
|
|
int t = 7;
|
|
return (t > f); // no warning
|
|
}
|
|
|
|
int checkGreaterThanFloatDeclCompare6(void) {
|
|
float f = 7.1F;
|
|
int t = 7;
|
|
return (f > t); // no warning
|
|
}
|
|
|
|
int checkGreaterThanCastFloatDeclCompare11(void) {
|
|
float f = 7.1F;
|
|
return ((int)f > (int)f); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
}
|
|
int checkGreaterThanCastFloatDeclCompare12(void) {
|
|
float f = 7.1F;
|
|
return ((char)f > (int)f); // no warning
|
|
}
|
|
int checkGreaterThanBinaryOpFloatCompare1(void) {
|
|
int res;
|
|
float f= 3.14F;
|
|
res = (f + 3.14F > f + 3.14F); // no warning
|
|
return (0);
|
|
}
|
|
int checkGreaterThanBinaryOpFloatCompare2(void) {
|
|
float f = 7.1F;
|
|
float g = 7.1F;
|
|
return (f + 3.14F > g + 3.14F); // no warning
|
|
}
|
|
int checkGreaterThanBinaryOpFloatCompare3(void) {
|
|
int res;
|
|
float f= 3.14F;
|
|
res = ((int)f + 3.14F > (int)f + 3.14F); // no warning
|
|
return (0);
|
|
}
|
|
int checkGreaterThanBinaryOpFloatCompare4(void) {
|
|
int res;
|
|
float f= 3.14F;
|
|
res = ((int)f + 3.14F > (char)f + 3.14F); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkGreaterThanNestedBinaryOpFloatCompare1(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
float f= 3.14F;
|
|
res = (((int)f + (3.14F - u)*t) > ((int)f + (3.14F - u)*t)); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkGreaterThanNestedBinaryOpFloatCompare2(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
float f= 3.14F;
|
|
res = (((int)f + (u - 3.14F)*t) > ((int)f + (3.14F - u)*t)); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkGreaterThanNestedBinaryOpFloatCompare3(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
float f= 3.14F;
|
|
res = (((int)f + (u - 3.14F)*t) > ((int)f + (3.14F - u)*(f + t > f + t))); // no warning
|
|
return (0);
|
|
}
|
|
|
|
/* end GT with float */
|
|
|
|
/* GT with int */
|
|
|
|
|
|
int checkGreaterThanIntLiteralCompare1(void) {
|
|
return (5 > 5); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
}
|
|
|
|
int checkGreaterThanIntLiteralCompare2(void) {
|
|
return (6 > 7); // no warning
|
|
}
|
|
|
|
int checkGreaterThanIntDeclCompare1(void) {
|
|
int f = 7;
|
|
int g = 7;
|
|
|
|
return (f > g); // no warning
|
|
}
|
|
|
|
int checkGreaterThanIntDeclCompare3(void) {
|
|
int f = 7;
|
|
return (f > 7); // no warning
|
|
}
|
|
|
|
int checkGreaterThanIntDeclCompare4(void) {
|
|
int f = 7;
|
|
return (7 > f); // no warning
|
|
}
|
|
|
|
int checkGreaterThanCastIntDeclCompare11(void) {
|
|
int f = 7;
|
|
return ((int)f > (int)f); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
}
|
|
int checkGreaterThanCastIntDeclCompare12(void) {
|
|
int f = 7;
|
|
return ((char)f > (int)f); // no warning
|
|
}
|
|
int checkGreaterThanBinaryOpIntCompare1(void) {
|
|
int res;
|
|
int f= 3;
|
|
res = (f + 3 > f + 3); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
return (0);
|
|
}
|
|
int checkGreaterThanBinaryOpIntCompare2(void) {
|
|
int f = 7;
|
|
int g = 7;
|
|
return (f + 3 > g + 3); // no warning
|
|
}
|
|
int checkGreaterThanBinaryOpIntCompare3(void) {
|
|
int res;
|
|
int f= 3;
|
|
res = ((int)f + 3 > (int)f + 3); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
return (0);
|
|
}
|
|
int checkGreaterThanBinaryOpIntCompare4(void) {
|
|
int res;
|
|
int f= 3;
|
|
res = ((int)f + 3 > (char)f + 3); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkGreaterThanNestedBinaryOpIntCompare1(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
int f= 3;
|
|
res = (((int)f + (3 - u)*t) > ((int)f + (3 - u)*t)); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
return (0);
|
|
}
|
|
|
|
int checkGreaterThanNestedBinaryOpIntCompare2(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
int f= 3;
|
|
res = (((int)f + (u - 3)*t) > ((int)f + (3 - u)*t)); // no warning
|
|
return (0);
|
|
}
|
|
|
|
int checkGreaterThanNestedBinaryOpIntCompare3(void) {
|
|
int res;
|
|
int t= 1;
|
|
int u= 2;
|
|
int f= 3;
|
|
res = (((int)f + (u - 3)*t) > ((int)f + (3 - u)*(t + u > t + u))); // expected-warning {{comparison of identical expressions always evaluates to false}}
|
|
return (0);
|
|
}
|
|
|
|
/* end GT with int */
|
|
|
|
/* end GT */
|