47 lines
941 B
C++
47 lines
941 B
C++
// RUN: %clang_cc1 -verify -fsyntax-only -Wlarge-by-value-copy=100 %s
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// rdar://8548050
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namespace rdar8548050 {
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struct S100 {
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char x[100];
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};
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struct S101 {
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char x[101];
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};
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S100 f100(S100 s) { return s; }
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S101 f101(S101 s) { return s; } // expected-warning {{return value of 'f101' is a large (101 bytes) pass-by-value object}} \
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// expected-warning {{'s' is a large (101 bytes) pass-by-value argument}}
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typedef int Arr[200];
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void farr(Arr a) { }
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struct NonPOD {
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char x[200];
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virtual void m();
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};
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NonPOD fNonPOD(NonPOD s) { return s; }
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template <unsigned size>
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struct TS {
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char x[size];
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};
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template <unsigned size>
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void tf(TS<size> ts) {} // expected-warning {{ts' is a large (300 bytes) pass-by-value argument}}
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void g() {
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TS<300> ts;
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tf<300>(ts); // expected-note {{instantiation}}
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}
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}
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template<typename T> class DependentPOD {
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enum b { x };
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b foo() { return x; }
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};
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