17 lines
385 B
C++
17 lines
385 B
C++
#include <iostream>
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#include <functional>
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#include <cmath>
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template <typename A, typename B, typename C>
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std::function<C(A)> compose(std::function<C(B)> f, std::function<B(A)> g) {
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return [f,g](A x) { return f(g(x)); };
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}
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int main() {
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std::function<double(double)> f = sin;
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std::function<double(double)> g = asin;
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std::cout << compose(f, g)(0.5) << std::endl;
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return 0;
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}
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