llvm-project/clang/test/Sema/format-strings-pedantic.c
David Blaikie 131e878664 Print nullptr_t namespace qualified within std::
This improves diagnostic (& important to me, DWARF) accuracy - otherwise
there could be ambiguities between "std::nullptr_t" and some user-defined
type that's /actually/ "nullptr_t" defined in the global namespace.

Differential Revision: https://reviews.llvm.org/D110044
2021-09-21 11:21:40 -07:00

21 lines
889 B
C

// RUN: %clang_cc1 -fsyntax-only -verify -Wno-format -Wformat-pedantic %s
// RUN: %clang_cc1 -xobjective-c -fblocks -fsyntax-only -verify -Wno-format -Wformat-pedantic %s
// RUN: %clang_cc1 -xc++ -fsyntax-only -verify -Wno-format -Wformat-pedantic %s
__attribute__((format(printf, 1, 2)))
int printf(const char *restrict, ...);
int main() {
printf("%p", (int *)0); // expected-warning {{format specifies type 'void *' but the argument has type 'int *'}}
printf("%p", (void *)0);
#ifdef __OBJC__
printf("%p", ^{}); // expected-warning {{format specifies type 'void *' but the argument has type 'void (^)(void)'}}
printf("%p", (id)0); // expected-warning {{format specifies type 'void *' but the argument has type 'id'}}
#endif
#ifdef __cplusplus
printf("%p", nullptr); // expected-warning {{format specifies type 'void *' but the argument has type 'std::nullptr_t'}}
#endif
}