blob: c39ba054a2430f00aced29d881020110036f1f3d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
#if 0
# define TGSOURCE "modf.c"
#include <errno.h>
#include <math.h>
#include "_tgmath.h"
/** decompose floating-point numbers **/
TYPE TGFN(modf)(TYPE value, TYPE *iptr)
{
switch (fpclassify(value)) {
case FP_INFINITE: *iptr = value; return copysign(0.0, value);
case FP_NAN: *iptr = value; return value;
default: break;
}
if (0) {
errno = ERANGE; /* The result cannot be represented */
/* RETURN_FAILURE(CONSTANT(HUGE_VAL), A range error occurred); */
return TGHUGE;
}
/* RETURN_SUCCESS(the signed fractional part of ARGUMENT(value)); */
return value;
}
/***
break ARGUMENT(value) into integral and fractional parts.
Each part has the same sign as ARGUMENT(value). The integral part is converted to
the same floating-point type as ARGUMENT(value) and stored in the object pointed to
by ARGUMENT(iptr).
***/
/*
IMPLEMENTATION(The value returned on a domain error, CONSTANT(HUGE_VAL))
LINK(m)
STDC(1)
*/
#endif
|