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5ef88bdb68
Token pasted by the preprocessor (through ##) have a Spelling pointing to scratch buffer. As a result they are not recognized at system macro, even though the pasting happened in a system macro. Fix that by looking into the parent macro if the original lookup finds a scratch buffer. Differential Revision: https://reviews.llvm.org/D55782 This effectively fixes https://bugs.llvm.org/show_bug.cgi?id=35268, llvm-svn: 352838
10 lines
281 B
C++
10 lines
281 B
C++
extern int __isnanf(float f);
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extern int __isnan(double f);
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extern int __isnanl(long double f);
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#define isnan(x) \
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(sizeof (x) == sizeof (float) \
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? __isnanf (x) \
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: sizeof (x) == sizeof (double) \
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? __isnan (x) : __isnanl (x))
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