Jef
89 lines
1.3 KiB
C++
89 lines
1.3 KiB
C++
/* SPDX-License-Identifier: BSL-1.0 OR BSD-3-Clause */
|
|
|
|
#ifndef MPT_BASE_EMPTY_HPP
|
|
#define MPT_BASE_EMPTY_HPP
|
|
|
|
|
|
|
|
#include "mpt/base/detect.hpp"
|
|
#include "mpt/base/namespace.hpp"
|
|
|
|
#include <algorithm>
|
|
#include <type_traits>
|
|
|
|
#include <cmath>
|
|
|
|
|
|
|
|
namespace mpt {
|
|
inline namespace MPT_INLINE_NS {
|
|
|
|
|
|
#if MPT_OS_DJGPP
|
|
|
|
inline long double log2(const long double val) {
|
|
return static_cast<long double>(::log2(static_cast<double>(val)));
|
|
}
|
|
|
|
inline double log2(const double val) {
|
|
return ::log2(val);
|
|
}
|
|
|
|
inline float log2(const float val) {
|
|
return ::log2f(val);
|
|
}
|
|
|
|
#else // !MPT_OS_DJGPP
|
|
|
|
// C++11 std::log2
|
|
using std::log2;
|
|
|
|
#endif // MPT_OS_DJGPP
|
|
|
|
|
|
#if MPT_OS_DJGPP
|
|
|
|
inline long double round(const long double val) {
|
|
return ::roundl(val);
|
|
}
|
|
|
|
inline double round(const double val) {
|
|
return ::round(val);
|
|
}
|
|
|
|
inline float round(const float val) {
|
|
return ::roundf(val);
|
|
}
|
|
|
|
#else // !MPT_OS_DJGPP
|
|
|
|
// C++11 std::round
|
|
using std::round;
|
|
|
|
#endif // MPT_OS_DJGPP
|
|
|
|
|
|
template <typename T>
|
|
inline T sanitize_nan(T val) {
|
|
static_assert(std::is_floating_point<T>::value);
|
|
if (std::isnan(val)) {
|
|
return T(0.0);
|
|
}
|
|
return val;
|
|
}
|
|
|
|
|
|
template <typename T>
|
|
inline T safe_clamp(T v, T lo, T hi) {
|
|
static_assert(std::is_floating_point<T>::value);
|
|
return std::clamp(mpt::sanitize_nan(v), lo, hi);
|
|
}
|
|
|
|
|
|
} // namespace MPT_INLINE_NS
|
|
} // namespace mpt
|
|
|
|
|
|
|
|
#endif // MPT_BASE_EMPTY_HPP
|