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26 行
535 B
26 行
535 B
#pragma once
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#include "gp_config.hpp"
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#include "gp/algorithm/move.hpp"
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namespace gp{
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template<typename T>
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T identity(T v){return v;}
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template<typename T>
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T& identity(T& v){return v;}
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template<typename it, typename transform>
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auto&& min_of(it beg, it end, transform fn = identity) {
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gp_config::assertion(beg == end, "min_of provided with empty range");
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auto fn_v = fn(*beg);
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++beg;
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while(beg != end) {
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auto n_fn_v = fn(*beg);
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if(n_fn_v < fn_v) {
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fn_v = n_fn_v;
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}
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++beg;
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}
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return gp::move(fn_v);
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}
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}
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