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C++17 in Detail: A Deep Dive

to_chars

In this part we learn about the to_char function and it's two types of declarations; the integral and floating point.

We'll cover the following...

to_chars is a set of overloaded functions for integral and floating point types.

Integral types declaration

C++
std::to_chars_result to_chars(char* first, char* last, TYPE value, int base = 10);

Where TYPE expands to all available signed and unsigned integer types and char.

Since base might range from 2 to 36, the output digits that are greater than 9 are represented as lowercase letters: a...z.

Floating point types declaration

Basic function

C++
std::to_chars_result to_chars(char* first, char* last, FLOAT_TYPE value);

FLOAT_TYPE expands to float ...