-
Notifications
You must be signed in to change notification settings - Fork 2
/
Math.cpp
46 lines (34 loc) · 1.39 KB
/
Math.cpp
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
43
44
45
46
// Includes Math.h in turn
#include "streflop.h"
namespace streflop {
// MSVC chokes on these constants,
// TODO: we need another way to specify them. (hardcode the bitpattern?)
#ifndef _MSC_VER
// Constants
const Simple SimplePositiveInfinity = Simple(1.0f) / Simple(0.0f);
const Simple SimpleNegativeInfinity = Simple(-1.0f) / Simple(0.0f);
// TODO: non-signaling version
const Simple SimpleNaN = SimplePositiveInfinity + SimpleNegativeInfinity;
const Double DoublePositiveInfinity = Double(1.0f) / Double(0.0f);
const Double DoubleNegativeInfinity = Double(-1.0f) / Double(0.0f);
// TODO: non-signaling version
const Double DoubleNaN = DoublePositiveInfinity + DoubleNegativeInfinity;
// Extended are not always available
#ifdef Extended
const Extended ExtendedPositiveInfinity = Extended(1.0f) / Extended(0.0f);
const Extended ExtendedNegativeInfinity = Extended(-1.0f) / Extended(0.0f);
// TODO: non-signaling version
const Extended ExtendedNaN = ExtendedPositiveInfinity + ExtendedNegativeInfinity;
#endif
#endif // _MSC_VER
// Default environment. Initalized to 0, and really set on first access
#if defined(STREFLOP_X87)
fenv_t FE_DFL_ENV = 0;
#elif defined(STREFLOP_SSE)
fenv_t FE_DFL_ENV = {0,0};
#elif defined(STREFLOP_SOFT)
fenv_t FE_DFL_ENV = {42,0,0};
#else
#error STREFLOP: Invalid combination or unknown FPU type.
#endif
}