From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001 From: "Zancanaro; Carlo" Date: Mon, 24 Sep 2012 09:58:17 +1000 Subject: Add the clang library to the repo (with some of my changes, too). --- clang/test/SemaCXX/constexpr-strlen.cpp | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 clang/test/SemaCXX/constexpr-strlen.cpp (limited to 'clang/test/SemaCXX/constexpr-strlen.cpp') 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}} -- cgit v1.2.3