1itofix(3) Allegro manual itofix(3)
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6 itofix - Converts an integer to fixed point. Allegro game programming
7 library.
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10 #include <allegro.h>
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13 fixed itofix(int x);
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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:
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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);
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31 Returns the value of the integer converted to fixed point ignoring
32 overflows.
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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)
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42Allegro version 4.4.3 itofix(3)