File: empty_va_arg.cpp

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (12 lines) | stat: -rw-r--r-- 606 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
 
// RUN: %clang_cc1 -Eonly -std=c++17 -pedantic -verify %s
// RUN: %clang_cc1 -Eonly -std=c17 -pedantic -verify -x c %s
// RUN: %clang_cc1 -Eonly -std=c++20 -pedantic -Wpre-c++20-compat -verify=compat %s

#define FOO(x, ...) // expected-note {{macro 'FOO' defined here}} \
                    // compat-note {{macro 'FOO' defined here}}

int main() {
  FOO(42) // expected-warning {{must specify at least one argument for '...' parameter of variadic macro}} \
          // compat-warning {{passing no argument for the '...' parameter of a variadic macro is incompatible with C++ standards before C++20}}
}