| /* Copyright (C) 2000 Free Software Foundation, Inc. */ |
| |
| /* { dg-do preprocess } */ |
| |
| /* Tests the _Pragma operator. Contributed by Neil Booth 1 Nov 2000. */ |
| |
| /* Within the preprocessor, the easy pragma to test is "poison". */ |
| |
| #pragma GCC poison p1 |
| p1 /* { dg-error "poisoned" } */ |
| |
| /* Standard use of _Pragma. */ |
| _Pragma ("GCC poison p2") |
| p2 /* { dg-error "poisoned" } */ |
| |
| /* Don't interpret _Pragmas in directives. The standard is not clear |
| on this, but I think this makes most sense. */ |
| #if 1 _Pragma (L"GCC poison p3") /* { dg-error "missing binary operator" } */ |
| p3 |
| #endif |
| |
| #define M1 _Pragma ("GCC poison p4") |
| p4 /* No problem; not yet poisoned. */ |
| #define M2(x) _Pragma (#x) |
| |
| /* Now test macro expansion with embedded _Pragmas. */ |
| M1 p4 /* { dg-error "poisoned" } */ |
| M2 (GCC poison p5) p5 /* { dg-error "poisoned" } */ |
| |
| /* Not interpreting _Pragma in directives means they don't nest. */ |
| _Pragma ("_Pragma (\"GCC poison p6\") GCC poison p7") |
| p6 |
| p7 |
| |
| /* Check we ignore them in false conditionals. */ |
| #if 0 |
| _Pragma ("GCC poison p8") |
| #endif |
| p8 /* No problem. */ |
