blob: fa0437cd071859e54ca458f523b48f7b7afdef5d (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
/* epsilon-equal.h: define an error resist compare. */
#ifndef EPSILON_EQUAL_H
#define EPSILON_EQUAL_H
#include "pm_c_util.h"
/* Says whether V1 and V2 are within REAL_EPSILON of each other.
Fixed-point arithmetic would be better, to guarantee machine
independence, but it's so much more painful to work with. The value
here is smaller than can be represented in either a `fix_word' or a
`scaled_num', so more precision than this will be lost when we
output, anyway. */
bool epsilon_equal(float const v1,
float const v2);
#define REAL_EPSILON 0.00001
#endif /* not EPSILON_EQUAL_H */
|