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author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
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committer | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
commit | be1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch) | |
tree | 1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/SemaCXX/constexpr-strlen.cpp | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/SemaCXX/constexpr-strlen.cpp')
-rw-r--r-- | clang/test/SemaCXX/constexpr-strlen.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/constexpr-strlen.cpp b/clang/test/SemaCXX/constexpr-strlen.cpp new file mode 100644 index 0000000..5e28e7f --- /dev/null +++ b/clang/test/SemaCXX/constexpr-strlen.cpp @@ -0,0 +1,15 @@ +// RUN: %clang_cc1 %s -std=c++11 -fsyntax-only -verify -pedantic + +# 1 "/usr/include/string.h" 1 3 4 +extern "C" { + typedef decltype(sizeof(int)) size_t; + extern size_t strlen(const char *p); +} + +# 10 "SemaCXX/constexpr-strlen.cpp" 2 +constexpr int n = __builtin_strlen("hello"); // ok +constexpr int m = strlen("hello"); // expected-error {{constant expression}} expected-note {{non-constexpr function 'strlen' cannot be used in a constant expression}} + +// Make sure we can evaluate a call to strlen. +int arr[3]; // expected-note {{here}} +int k = arr[strlen("hello")]; // expected-warning {{array index 5}} |