1itofix(3) Allegro manual itofix(3)
2
3
4
6 itofix - Converts an integer to fixed point. Allegro game programming
7 library.
8
10 #include <allegro.h>
11
12
13 fixed itofix(int x);
14
16 Converts an integer to fixed point. This is the same thing as x<<16.
17 Remember that overflows (trying to convert an integer greater than
18 32767) and underflows (trying to convert an integer lesser than -32768)
19 are not detected even in debug builds! The values simply "wrap around".
20 Example:
21
22 fixed number;
23 /* This conversion is OK. */
24 number = itofix(100);
25 ASSERT(fixtoi(number) == 100);
26 number = itofix(64000);
27 /* This check will fail in debug builds. */
28 ASSERT(fixtoi(number) == 64000);
29
31 Returns the value of the integer converted to fixed point ignoring
32 overflows.
33
34
36 fixtoi(3), ftofix(3), fixtof(3), ex12bit(3), ex3buf(3), ex3d(3),
37 exblend(3), excustom(3), exfixed(3), exlights(3), exspline(3),
38 exsprite(3), exstars(3)
39
40
41
42Allegro version 4.4.2 itofix(3)