Standard library header <charconv>
From cppreference.com
Classes
(C++17) |
specifies formatting for std::to_chars and std::from_chars (enum) |
Functions
(C++17) |
converts a character sequence to an integer or floating-point value (function) |
(C++17) |
converts an integer or floating-point value to a character sequence (function) |
Synopsis
namespace std { // floating-point format for primitive numerical conversion enum class chars_format { scientific = /*unspecified*/ , fixed = /*unspecified*/ , hex = /*unspecified*/ , general = fixed | scientific }; // primitive numerical output conversion struct to_chars_result { char* ptr; errc ec; }; to_chars_result to_chars(char* first, char* last, /*see description*/ value, int base = 10); to_chars_result to_chars(char* first, char* last, float value); to_chars_result to_chars(char* first, char* last, double value); to_chars_result to_chars(char* first, char* last, long double value); to_chars_result to_chars(char* first, char* last, float value, chars_format fmt); to_chars_result to_chars(char* first, char* last, double value, chars_format fmt); to_chars_result to_chars(char* first, char* last, long double value, chars_format fmt); to_chars_result to_chars(char* first, char* last, float value, chars_format fmt, int precision); to_chars_result to_chars(char* first, char* last, double value, chars_format fmt, int precision); to_chars_result to_chars(char* first, char* last, long double value, chars_format fmt, int precision); // primitive numerical input conversion struct from_chars_result { const char* ptr; errc ec; }; from_chars_result from_chars(const char* first, const char* last, /*see description*/ & value, int base = 10); from_chars_result from_chars(const char* first, const char* last, float& value, chars_format fmt = chars_format::general); from_chars_result from_chars(const char* first, const char* last, double& value, chars_format fmt = chars_format::general); from_chars_result from_chars(const char* first, const char* last, long double& value, chars_format fmt = chars_format::general); }