| // RUN: %clang_cc1 %s -Eonly -verify -Wno-all -Wno-c++23-extensions -pedantic -std=c++20 |
| // RUN: %clang_cc1 %s -Eonly -verify -Wno-all -Wno-c++23-extensions -pedantic -std=c++11 |
| // RUN: %clang_cc1 -x c %s -Eonly -verify -Wno-all -Wno-c2x-extensions -pedantic -std=c99 |
| |
| //expected-error@+1{{missing '('}} |
| #define V1(...) __VA_OPT__ |
| #undef V1 |
| // OK |
| #define V1(...) __VA_OPT__ () |
| #undef V1 |
| |
| //expected-warning@+1{{can only appear in the expansion of a variadic macro}} |
| #define V2() __VA_OPT__(x) |
| #undef V2 |
| |
| //expected-error@+2{{missing ')' after}} |
| //expected-note@+1{{to match this '('}} |
| #define V3(...) __VA_OPT__( |
| #undef V3 |
| |
| #define V4(...) __VA_OPT__(__VA_ARGS__) |
| #undef V4 |
| |
| //expected-error@+1{{nested}} |
| #define V5(...) __VA_OPT__(__VA_OPT__()) |
| #undef V5 |
| |
| //expected-error@+1{{not followed by}} |
| #define V1(...) __VA_OPT__ (#) |
| #undef V1 |
| |
| //expected-error@+1{{cannot appear at start}} |
| #define V1(...) __VA_OPT__ (##) |
| #undef V1 |
| |
| //expected-error@+1{{cannot appear at start}} |
| #define V1(...) __VA_OPT__ (## X) x |
| #undef V1 |
| |
| //expected-error@+1{{cannot appear at end}} |
| #define V1(...) y __VA_OPT__ (X ##) |
| #undef V1 |
| |
| |
| #define FOO(x,...) # __VA_OPT__(x) #x #__VA_OPT__(__VA_ARGS__) //OK |
| |
| //expected-error@+1{{not followed by a macro parameter}} |
| #define V1(...) __VA_OPT__(#) |
| #undef V1 |
| |
| //expected-error@+1{{cannot appear at start}} |
| #define V1(...) a __VA_OPT__(##) b |
| #undef V1 |
| |
| //expected-error@+1{{cannot appear at start}} |
| #define V1(...) a __VA_OPT__(a ## b) b __VA_OPT__(##) |
| #undef V1 |
| |
| #define V1(x,...) # __VA_OPT__(b x) // OK |
| #undef V1 |
| |
| //expected-error@+2{{missing ')' after}} |
| //expected-note@+1{{to match this '('}} |
| #define V1(...) __VA_OPT__ ((()) |
| #undef V1 |
| |
| // __VA_OPT__ can't appear anywhere else. |
| #if __VA_OPT__ // expected-warning {{__VA_OPT__ can only appear in the expansion of a variadic macro}} |
| #endif |
| |
| // expected-warning@+2 {{__VA_OPT__ can only appear in the expansion of a variadic macro}} |
| #ifdef __VA_OPT__ // expected-warning {{__VA_OPT__ can only appear in the expansion of a variadic macro}} |
| #elifdef __VA_OPT__ |
| #endif |
| |
| #define BAD __VA_OPT__ // expected-warning {{__VA_OPT__ can only appear in the expansion of a variadic macro}} |