74 lines
1.5 KiB
C
74 lines
1.5 KiB
C
#include "fixed.h"
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#include "dgl.h"
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#include <stdio.h>
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#include "helpers.h"
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void test_fixed(void) {
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fixed a, b, c;
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float af, bf, cf, f;
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float aaf, bbf, ccf;
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int i;
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a = FTOFIX(PI);
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f = FIXTOF(a);
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ASSERT(FFIX_EQU(PI, f));
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a = FTOFIX(-0.38f);
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f = FIXTOF(a);
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ASSERT(FFIX_EQU(-0.38f, f));
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a = ITOFIX(17);
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i = FIXTOI(a);
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ASSERT(17 == i);
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a = ITOFIX(-17);
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i = FIXTOI(a);
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ASSERT(-17 == i);
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a = FTOFIX(1.5f);
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b = FTOFIX(2.3f);
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c = a + b;
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f = FIXTOF(c);
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ASSERT(FFIX_EQU((1.5f + 2.3f), f));
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a = FTOFIX(0.2f);
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b = FTOFIX(1.7f);
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c = a - b;
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f = FIXTOF(c);
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ASSERT(FFIX_EQU((0.2f - 1.7f), f));
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a = FTOFIX(16.0f);
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c = a >> 2;
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f = FIXTOF(c);
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ASSERT(FFIX_EQU((16 >> 2), f));
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a = FTOFIX(7.1f);
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b = ITOFIX(2);
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c = fix_mul(a, b);
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f = FIXTOF(c);
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ASSERT(FFIX_EQU((7.1f * 2), f));
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a = FTOFIX(77.7f);
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b = ITOFIX(3);
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c = fix_div(a, b);
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f = FIXTOF(c);
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ASSERT(FFIX_EQU((77.7f / 3), f));
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for (i = 0; i <= 360; i += 45) {
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f = DEG_TO_RAD(i + 1);
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a = fix_sin(FTOFIX(f));
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af = sin(f);
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aaf = FIXTOF(a);
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b = fix_cos(FTOFIX(f));
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bf = cos(f);
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bbf = FIXTOF(b);
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c = fix_tan(FTOFIX(f));
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cf = tan(f);
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ccf = FIXTOF(c);
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ASSERT(FFIX_EQU(aaf, af));
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ASSERT(FFIX_EQU(bbf, bf));
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ASSERT(FFIX_EQU(ccf, cf));
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}
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}
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