diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/cpp/mac-dir-1.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/cpp/mac-dir-1.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/mac-dir-1.c b/gcc/testsuite/gcc.dg/cpp/mac-dir-1.c new file mode 100644 index 000000000..002c47f5f --- /dev/null +++ b/gcc/testsuite/gcc.dg/cpp/mac-dir-1.c @@ -0,0 +1,34 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. */ + +/* { dg-do preprocess } */ + +/* Source: Neil Booth, 26 Feb 2002. + + Test that we allow directives in macro arguments. */ + +/* { dg-do run } */ +/* { dg-options "" } */ + +#define f(x) x +extern void abort (void); + +int main () +{ + if (f ( +#if f(1) /* True. */ + 0)) /* False. */ +#else + 1)) +#endif + abort (); + + /* Outer f expands to original definition, f in argument expands + to new definition, so result is: if (1 != 2 - 1). */ + if (1 != f(2 +#undef f +#define f - 1 + f)) + abort (); + + return 0; +} |