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#if 0
# define TGSOURCE "fabs.c"
#include <errno.h>
#include <math.h>
#include "_tgmath.h"
/** absolute value **/
TYPE TGFN(fabs)(TYPE x)
{
SIGNAL_SAFE(0);
switch (fpclassify(x)) {
case FP_ZERO: return 0.0;
case FP_INFINITE: return INFINITY;
default: break;
}
if (0) {
errno = ERANGE; /* The result cannot be represented */
/* RETURN_FAILURE(CONSTANT(HUGE_VAL), A range error occurred); */
return TGHUGE;
}
/* RETURN_SUCCESS(ABS(ARGUMENT(x))); */
return signbit(x) ? -x : x;
}
/***
compute the absolute value of a floating-point number ARGUMENT(x).
***/
/*
IMPLEMENTATION(The value returned on a domain error, CONSTANT(HUGE_VAL))
LINK(m)
STDC(1)
*/
#endif
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