llvm-project/clang/test/Sema/attr-format_arg.c

14 lines
390 B
C

// RUN: %clang_cc1 -fsyntax-only -verify %s
int printf(const char *, ...);
const char* f(const char *s) __attribute__((format_arg(1)));
void g(const char *s) {
printf("%d", 123);
printf("%d %d", 123); // expected-warning{{more '%' conversions than data arguments}}
printf(f("%d"), 123);
printf(f("%d %d"), 123); // expected-warning{{more '%' conversions than data arguments}}
}