blob: 2b2e07abc1613a9244bda7936de6d17f5434fbb1 (
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
|
# define TGSOURCE "floor.c"
#include <math.h>
#include "nonstd/tgmath.h"
#include "errno.h"
/** round down to nearest integer **/
TYPE TGFN(floor)(TYPE x)
{
if (0) {
errno = ERANGE; /* The result cannot be represented */
/* RETURN_FAILURE(CONSTANT(HUGE_VAL), A range error occurred); */
return TGHUGE;
}
/* RETURN_SUCCESS(FLOOR(ARGUMENT(x))); */
return x;
}
/***
compute the largest integral value that is not greater
than ARGUMENT(x), returning it as the same floating-point type as ARGUMENT(x).
***/
/*
IMPLEMENTATION(The value returned on a domain error, CONSTANT(HUGE_VAL))
LINK(m)
*/
/*
STDC(1)
*/
|
