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b2e3e3e30e
This is a full re-write of the CMake Tutorial for CMake 3.23, both the functionality it provides, as well as the modern workflows that developers use when interfacing with CMake. Issue: #22663, #23086, #23799, #26053, #26105, #26153, #26914
46 lines
805 B
C++
46 lines
805 B
C++
#include <cmath>
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#include <format>
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// TODO5: Replace <iostream> with <MathLogger.h>
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#include <iostream>
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namespace {
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// TODO6: Instantiate a logger inside the anonymous namespace
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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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// TODO7: Use the logger to log the message
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std::cout << std::format("Computing sqrt of {} to be {}\n", x, result);
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}
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return result;
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}
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}
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namespace mathfunctions {
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double sqrt(double x)
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{
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#ifdef TUTORIAL_USE_STD_SQRT
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return std::sqrt(x);
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#else
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return mysqrt(x);
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#endif
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}
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}
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