15 lines
605 B
C++
15 lines
605 B
C++
// RUN: %clang_cc1 %s -std=c++11 -fsyntax-only -verify -pedantic
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# 1 "/usr/include/string.h" 1 3 4
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extern "C" {
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typedef decltype(sizeof(int)) size_t;
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extern size_t strlen(const char *p);
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}
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# 10 "SemaCXX/constexpr-strlen.cpp" 2
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constexpr int n = __builtin_strlen("hello"); // ok
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constexpr int m = strlen("hello"); // expected-error {{constant expression}} expected-note {{non-constexpr function 'strlen' cannot be used in a constant expression}}
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// Make sure we can evaluate a call to strlen.
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int arr[3]; // expected-note {{here}}
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int k = arr[strlen("hello")]; // expected-warning {{array index 5}}
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