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41 lines
969 B
41 lines
969 B
#include "test_I.h"
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int test_I_mul (int iterations)
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{
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int error = 0;
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int i;
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// Check commutativity.
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for (i = iterations; i > 0; i--) {
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cl_I a = testrandom_I();
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cl_I b = testrandom_I();
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ASSERT2(a*b == b*a, a,b);
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}
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// Check associativity.
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for (i = iterations; i > 0; i--) {
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cl_I a = testrandom_I();
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cl_I b = testrandom_I();
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cl_I c = testrandom_I();
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ASSERT3((a*b)*c == a*(b*c), a,b,c);
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}
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// Check second binomial formula.
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for (i = iterations; i > 0; i--) {
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cl_I a = testrandom_I();
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cl_I b = testrandom_I();
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ASSERT2((a+b)*(a-b) == a*a-b*b, a,b);
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}
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// Check distributive formula.
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for (i = iterations; i > 0; i--) {
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cl_I a = testrandom_I();
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cl_I b = testrandom_I();
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cl_I c = testrandom_I();
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ASSERT3((a+c)*(b+c) == a*b+(a+b)*c+c*c, a,b,c);
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}
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// Check special cases 0, 1, -1.
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for (i = iterations; i > 0; i--) {
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cl_I a = testrandom_I();
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ASSERT1(a*0 == 0, a);
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ASSERT1(a*1 == a, a);
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ASSERT1(a*-1 == -a, a);
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}
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return error;
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}
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