33 lines · c
1/* Test pragma message directive from2 http://msdn.microsoft.com/en-us/library/x7dkzch2.aspx */3// message: Sends a string literal to the standard output without terminating4// the compilation.5// #pragma message(messagestring)6// OR7// #pragma message messagestring8//9// RUN: %clang_cc1 -fsyntax-only -verify -Werror %s10// RUN: %clang_cc1 -fsyntax-only -verify -Werror -W#pragma-messages %s11#define STRING2(x) #x12#define STRING(x) STRING2(x)13#pragma message(":O I'm a message! " STRING(__LINE__)) // expected-warning {{:O I'm a message! 13}}14#pragma message ":O gcc accepts this! " STRING(__LINE__) // expected-warning {{:O gcc accepts this! 14}}15 16#pragma message(invalid) // expected-error {{expected string literal in pragma message}}17 18// GCC supports a similar pragma, #pragma GCC warning (which generates a warning19// message) and #pragma GCC error (which generates an error message).20 21#pragma GCC warning(":O I'm a message! " STRING(__LINE__)) // expected-warning {{:O I'm a message! 21}}22#pragma GCC warning ":O gcc accepts this! " STRING(__LINE__) // expected-warning {{:O gcc accepts this! 22}}23 24#pragma GCC error(":O I'm a message! " STRING(__LINE__)) // expected-error {{:O I'm a message! 24}}25#pragma GCC error ":O gcc accepts this! " STRING(__LINE__) // expected-error {{:O gcc accepts this! 25}}26 27#define COMPILE_ERROR(x) _Pragma(STRING2(GCC error(x)))28COMPILE_ERROR("Compile error at line " STRING(__LINE__) "!"); // expected-error {{Compile error at line 28!}}29 30#pragma message // expected-error {{pragma message requires parenthesized string}}31#pragma GCC warning("" // expected-error {{pragma warning requires parenthesized string}}32#pragma GCC error(1) // expected-error {{expected string literal in pragma error}}33