| // { dg-do run { target c++98_only } } | |
| // { dg-options "-ansi -pedantic-errors" } | |
| #define f ( | |
| #define l ) | |
| #define str(x) #x | |
| #define xstr(x) str(x) | |
| // C90 and C++98: "0x1p+( 0x1p+)" | |
| // C99 and C++11: "0x1p+f 0x1p+l" | |
| const char *s = xstr(0x1p+f 0x1p+l); | |
| extern "C" void abort (void); | |
| extern "C" int strcmp (const char *, const char *); | |
| int | |
| main() | |
| { | |
| if (strcmp (s, "0x1p+( 0x1p+)")) | |
| abort (); // Correct C99 and C++11 behavior. | |
| else | |
| return 0; // Correct C90 and C++ behavior. | |
| } |