0e24686af4
https://cplusplus.github.io/CWG/issues/722.html nullptr passed to a variadic function now converted to void* in C++. This does not affect C23 nullptr. Also fixes -Wformat-pedantic so that it no longer warns for nullptr passed to %p (because it is converted to void* in C++ and it is allowed for va_arg(ap, void*) in C23)
22 lines
889 B
C
22 lines
889 B
C
// RUN: %clang_cc1 -fsyntax-only -verify -Wno-format -Wformat-pedantic %s
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// RUN: %clang_cc1 -xobjective-c -fblocks -fsyntax-only -verify -Wno-format -Wformat-pedantic %s
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// RUN: %clang_cc1 -xc++ -fsyntax-only -verify -Wno-format -Wformat-pedantic %s
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// RUN: %clang_cc1 -std=c23 -fsyntax-only -verify -Wno-format -Wformat-pedantic %s
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__attribute__((format(printf, 1, 2)))
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int printf(const char *restrict, ...);
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int main(void) {
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printf("%p", (int *)0); // expected-warning {{format specifies type 'void *' but the argument has type 'int *'}}
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printf("%p", (void *)0);
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#ifdef __OBJC__
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printf("%p", ^{}); // expected-warning {{format specifies type 'void *' but the argument has type 'void (^)(void)'}}
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printf("%p", (id)0); // expected-warning {{format specifies type 'void *' but the argument has type 'id'}}
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#endif
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#if !__is_identifier(nullptr)
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printf("%p", nullptr);
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#endif
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}
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