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Diffstat (limited to 'gcc/testsuite/gcc.dg/cpp/Wunused.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/cpp/Wunused.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/Wunused.c b/gcc/testsuite/gcc.dg/cpp/Wunused.c new file mode 100644 index 000000000..ac363ad04 --- /dev/null +++ b/gcc/testsuite/gcc.dg/cpp/Wunused.c @@ -0,0 +1,38 @@ +/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. */ + +/* { dg-do preprocess } */ +/* Duplicate command line options should not warn. */ +/* { dg-options "-Wunused-macros -Dfoo -Dfoo" } */ + +/* Test everything related to -Wunused-macros. + + Source: Neil Booth, 23 Jul 2002. */ + +#include "Wunused.h" + +#define used1 /* { dg-bogus "used" } */ +#define used2 /* { dg-bogus "used" } */ +#define used3 /* { dg-bogus "used" } */ +#define used4 used4 /* { dg-bogus "used" } */ + +#define unused5 /* { dg-warning "used" } */ +#define unused6 /* { dg-warning "used" } */ +#define unused7() /* { dg-warning "used" } */ + +#if defined used1 +#endif +#ifdef used2 +#endif +#ifndef used3 +#endif +used4 + +unused7 /* This does not count as a use. */ + +#if 0 +unused5 /* This does not count as a use. */ +#endif +#undef unused5 + +#define unused6 +unused6 |