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98 lines
2.4 KiB
98 lines
2.4 KiB
#pragma once |
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#include <cstring> |
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#include <string> |
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#include <type_traits> |
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#include "utils/stdcompat/string_view.hpp" |
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namespace devilution { |
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/** |
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* @brief Writes the integer to the given buffer. |
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* @return char* end of the buffer |
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*/ |
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char *BufCopy(char *out, int value); |
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/** |
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* @brief Appends the integer to the given string. |
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*/ |
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void StrAppend(std::string &out, int value); |
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/** |
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* @brief Copies the given string_view to the given buffer. |
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*/ |
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inline char *BufCopy(char *out, string_view value) |
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{ |
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std::memcpy(out, value.data(), value.size()); |
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return out + value.size(); |
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} |
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/** |
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* @brief Copies the given string_view to the given string. |
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*/ |
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inline void StrAppend(std::string &out, string_view value) |
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{ |
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AppendStrView(out, value); |
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} |
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/** |
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* @brief Appends the given C string to the given buffer. |
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* |
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* `str` must be a null-terminated C string, `out` will not be null terminated. |
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*/ |
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inline char *BufCopy(char *out, const char *str) |
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{ |
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return BufCopy(out, string_view(str != nullptr ? str : "(nullptr)")); |
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} |
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/** |
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* @brief Appends the given C string to the given string. |
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*/ |
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inline void StrAppend(std::string &out, const char *str) |
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{ |
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AppendStrView(out, string_view(str != nullptr ? str : "(nullptr)")); |
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} |
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#if __cplusplus >= 201703L |
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template <typename... Args> |
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typename std::enable_if<(sizeof...(Args) > 1), char *>::type |
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BufCopy(char *out, Args &&...args) |
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{ |
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return ((out = BufCopy(out, std::forward<Args>(args))), ...); |
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} |
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#else |
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template <typename Arg, typename... Args> |
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inline typename std::enable_if<(sizeof...(Args) > 0), char *>::type |
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BufCopy(char *out, Arg &&arg, Args &&...args) |
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{ |
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return BufCopy(BufCopy(out, std::forward<Arg>(arg)), std::forward<Args>(args)...); |
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} |
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#endif |
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#if __cplusplus >= 201703L |
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template <typename... Args> |
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typename std::enable_if<(sizeof...(Args) > 1), void>::type |
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StrAppend(std::string &out, Args &&...args) |
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{ |
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(StrAppend(out, std::forward<Args>(args)), ...); |
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} |
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#else |
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template <typename Arg, typename... Args> |
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typename std::enable_if<(sizeof...(Args) > 0), void>::type |
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StrAppend(std::string &out, Arg &&arg, Args &&...args) |
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{ |
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StrAppend(out, std::forward<Arg>(arg)); |
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StrAppend(out, std::forward<Args>(args)...); |
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} |
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#endif |
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template <typename... Args> |
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std::string StrCat(Args &&...args) |
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{ |
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std::string result; |
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StrAppend(result, std::forward<Args>(args)...); |
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return result; |
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} |
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} // namespace devilution
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