// RUN: %clang_cc1 %s -Eonly -verify -Wno-all -pedantic -std=c++2a | |
//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 | |