utility_data_size.h

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// Copyright 2025 owent
// Created by owent on 2025-03-03
 
#pragma once
 
#include "libcopp/utils/config/compile_optimize.h"
#include "libcopp/utils/config/libcopp_build_features.h"
 
#include <string>
 
LIBCOPP_COPP_NAMESPACE_BEGIN
namespace nostd {
 
#if ((defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L))
 
using ::std::data;
using ::std::size;
 
#else
 
template <class TCONTAINER>
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline auto size(const TCONTAINER& container) -> decltype(container.size()) {
  return container.size();
}
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline auto size(const TCONTAINER& container) -> decltype(container.size()) {…}
 
template <class T, size_t SIZE>
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline size_t size(const T (&)[SIZE]) noexcept {
  return SIZE;
}
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline size_t size(const T (&)[SIZE]) noexcept {…}
 
template <class TCONTAINER>
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline auto data(TCONTAINER& container) -> decltype(container.data()) {
  return container.data();
}
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline auto data(TCONTAINER& container) -> decltype(container.data()) {…}
 
template <class TCONTAINER>
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline auto data(const TCONTAINER& container) -> decltype(container.data()) {
  return container.data();
}
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline auto data(const TCONTAINER& container) -> decltype(container.data()) {…}
 
template <class T, size_t SIZE>
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline T* data(T (&array_value)[SIZE]) noexcept {
  return array_value;
}
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline T* data(T (&array_value)[SIZE]) noexcept {…}
 
template <class TELEMENT>
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline const TELEMENT* data(std::initializer_list<TELEMENT> l) noexcept {
  return l.begin();
}
LIBCOPP_COPP_API_HEAD_ONLY constexpr inline const TELEMENT* data(std::initializer_list<TELEMENT> l) noexcept {…}
 
#endif
}  // namespace nostd
LIBCOPP_COPP_NAMESPACE_END