25 lines
673 B
C
25 lines
673 B
C
#include <math.h>
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#include <stdbool.h>
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#include <stdio.h>
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bool approxEquals(double value, double other, double epsilon) {
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return fabs(value - other) < epsilon;
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}
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void test(double a, double b) {
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double epsilon = 1e-18;
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printf("%f, %f => %d\n", a, b, approxEquals(a, b, epsilon));
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}
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int main() {
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test(100000000000000.01, 100000000000000.011);
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test(100.01, 100.011);
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test(10000000000000.001 / 10000.0, 1000000000.0000001000);
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test(0.001, 0.0010000001);
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test(0.000000000000000000000101, 0.0);
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test(sqrt(2.0) * sqrt(2.0), 2.0);
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test(-sqrt(2.0) * sqrt(2.0), -2.0);
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test(3.14159265358979323846, 3.14159265358979324);
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return 0;
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}
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