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llvm-project/clang/test/Lexer/builtin_redef.c

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After issuing a diagnostic for undefining or redefining a builtin macro, continue parsing the directive rather than silently discarding it. Allowing undef or redef of __TIME__ and __DATE__ is important to folks who want stable, reproducible builds. llvm-svn: 176540
2013-03-06 08:46:00 +08:00
// RUN: %clang_cc1 %s -D__TIME__=1234 -U__DATE__ -E 2>&1 | FileCheck %s --check-prefix=CHECK-OUT
// RUN: %clang_cc1 %s -D__TIME__=1234 -U__DATE__ -E 2>&1 | FileCheck %s --check-prefix=CHECK-WARN
Add 'not' to commands that are expected to fail. This is at least good documentation, but also opens the possibility of using pipefail. llvm-svn: 185652
2013-07-05 00:16:58 +08:00
// RUN: not %clang_cc1 %s -D__TIME__=1234 -U__DATE__ -E 2>&1 -pedantic-errors | FileCheck %s --check-prefix=CHECK-ERR
After issuing a diagnostic for undefining or redefining a builtin macro, continue parsing the directive rather than silently discarding it. Allowing undef or redef of __TIME__ and __DATE__ is important to folks who want stable, reproducible builds. llvm-svn: 176540
2013-03-06 08:46:00 +08:00
// CHECK-WARN: <command line>:{{.*}} warning: redefining builtin macro
// CHECK-WARN: <command line>:{{.*}} warning: undefining builtin macro
// CHECK-ERR: <command line>:{{.*}} error: redefining builtin macro
// CHECK-ERR: <command line>:{{.*}} error: undefining builtin macro
int n = __TIME__;
__DATE__
#define __FILE__ "my file"
// CHECK-WARN: :[[@LINE-1]]:9: warning: redefining builtin macro
// CHECK-ERR: :[[@LINE-2]]:9: error: redefining builtin macro
// CHECK-OUT: int n = 1234;
// CHECK-OUT: __DATE__