8ddf32196c
Propagate the refactor in Step 10 MathFunctions through all of the steps. Use MathFunctions/MathFunctions.cxx instead of Tutorial.cxx to determine which sqrt library is called. Adds .h files which correspond to their .cxx files by name.
29 lines
526 B
C++
29 lines
526 B
C++
#include "mysqrt.h"
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#include <iostream>
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namespace mathfunctions {
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namespace detail {
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// a hack square root calculation using simple operations
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double mysqrt(double x)
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{
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if (x <= 0) {
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return 0;
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}
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double result = x;
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// do ten iterations
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for (int i = 0; i < 10; ++i) {
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if (result <= 0) {
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result = 0.1;
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}
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double delta = x - (result * result);
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result = result + 0.5 * delta / result;
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std::cout << "Computing sqrt of " << x << " to be " << result << std::endl;
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}
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return result;
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}
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}
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}
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