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// RUN: %clang_cc1 -triple x86_64-apple-darwin -isystem %S -Wdouble-promotion -fsyntax-only %s 2>&1 | FileCheck -allow-empty %s
// CHECK: warning:
// CHECK: expanded from macro 'ISNAN'
// CHECK: expanded from macro 'isnan'
#include <warn-in-system-macro-def.c.inc>
#define isnan(x) \
(sizeof (x) == sizeof (float) \
? __isnanf (x) \
: sizeof (x) == sizeof (double) \
? __isnan (x) : __isnanl (x))
int main(void)
{
double foo = 1.0;
if (ISNAN(foo))
return 1;
return 0;
}
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