Standard library header <charconv> (C++17)
From cppreference.net
C++
Standard library headers
Este encabezado es parte de la biblioteca de procesamiento de texto .
Clases |
|
|
(C++17)
|
especifica el formato para
std::to_chars
y
std::from_chars
(enum) |
|
(C++17)
|
el tipo de retorno de
std::from_chars
(class) |
|
(C++17)
|
el tipo de retorno de
std::to_chars
(class) |
Funciones |
|
|
(C++17)
|
convierte una secuencia de caracteres a un valor entero o de punto flotante
(function) |
|
(C++17)
|
convierte un valor entero o de punto flotante a una secuencia de caracteres
(function) |
Sinopsis
namespace std { // formato de punto flotante para conversión numérica primitiva enum class chars_format { scientific = /* unspecified */, fixed = /* unspecified */, hex = /* unspecified */, general = fixed | scientific }; // conversión de salida numérica primitiva struct to_chars_result { // freestanding char* ptr; errc ec; friend bool operator==(const to_chars_result&, const to_chars_result&) = default; constexpr explicit operator bool() const noexcept { return ec == errc{}; } }; constexpr to_chars_result to_chars(char* first, char* last, // freestanding /* integer-type */ value, int base = 10); to_chars_result to_chars(char* first, char* last, // freestanding bool value, int base = 10) = delete; to_chars_result to_chars(char* first, char* last, // freestanding-deleted /* floating-point-type */ value); to_chars_result to_chars(char* first, char* last, // freestanding-deleted /* floating-point-type */ value, chars_format fmt); to_chars_result to_chars(char* first, char* last, // freestanding-deleted /* floating-point-type */ value, chars_format fmt, int precision); // conversión de entrada numérica primitiva struct from_chars_result { // freestanding const char* ptr; errc ec; friend bool operator==(const from_chars_result&, const from_chars_result&) = default; constexpr explicit operator bool() const noexcept { return ec == errc{}; } }; constexpr from_chars_result from_chars(const char* first, // freestanding const char* last, /* integer-type */& value, int base = 10); from_chars_result from_chars(const char* first, // freestanding-deleted const char* last, /* floating-point-type */& value, chars_format fmt = chars_format::general); }