101 lines
2.0 KiB
C++
101 lines
2.0 KiB
C++
#pragma once
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// system includes
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#include <utility>
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#include <type_traits>
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namespace cpputils {
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namespace literals {
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namespace {
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/**
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* User-defined Literals
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* usage:
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*
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* uint32_t = test = 10_MHz; // --> 10000000
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*/
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constexpr unsigned long long operator"" _kHz(unsigned long long x)
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{
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return x * 1000;
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}
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constexpr unsigned long long operator"" _MHz(unsigned long long x)
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{
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return x * 1000 * 1000;
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}
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constexpr unsigned long long operator"" _GHz(unsigned long long x)
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{
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return x * 1000 * 1000 * 1000;
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}
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constexpr unsigned long long operator"" _kBit(unsigned long long x)
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{
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return x * 1024;
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}
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constexpr unsigned long long operator"" _MBit(unsigned long long x)
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{
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return x * 1024 * 1024;
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}
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constexpr unsigned long long operator"" _GBit(unsigned long long x)
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{
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return x * 1024 * 1024 * 1024;
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}
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constexpr unsigned long long operator"" _kB(unsigned long long x)
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{
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return x * 1024;
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}
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constexpr unsigned long long operator"" _MB(unsigned long long x)
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{
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return x * 1024 * 1024;
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}
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constexpr unsigned long long operator"" _GB(unsigned long long x)
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{
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return x * 1024 * 1024 * 1024;
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}
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} // namespace
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} // namespace literals
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namespace {
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template<typename T>
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T vmin(T&&t)
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{
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return std::forward<T>(t);
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}
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template<typename T0, typename T1, typename... Ts>
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typename std::common_type<T0, T1, Ts...>::type vmin(T0&& val1, T1&& val2, Ts&&... vs)
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{
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if (val1 < val2)
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return vmin(val1, std::forward<Ts>(vs)...);
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else
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return vmin(val2, std::forward<Ts>(vs)...);
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}
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template<class T>
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constexpr const T& clamp( const T& v, const T& lo, const T& hi )
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{
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// assert( !(hi < lo) );
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return (v < lo) ? lo : (hi < v) ? hi : v;
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}
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template<typename T>
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T mapValue(T x, T in_min, T in_max, T out_min, T out_max)
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{
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return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
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}
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template<typename First, typename ... T>
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bool is_in(First &&first, T && ... t)
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{
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return ((first == t) || ...);
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}
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} // namespace
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} // namespace cpputils
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