Format args according to the format string fmt, and return the result as a string. If present, loc is used for locale-specific formatting.

Format specification specifies how objects are formatted with different kinds of options. The formatting of objects of basic types and standard string types uses the basic format specification.

For basic types and string types, the format specification is based on the format specification in Python. The syntax of format specifications is:

Formatters for other pointers and pointers to members are disabled. Specializations such as std::formatter<wchar_t, char> and std::formatter<const char*, wchar_t> that would require encoding …

Format args according to the format string fmt, and write the result to the output iterator out. If present, loc is used for locale-specific formatting. Equivalent to:

Format args according to the format string fmt, and write the result to the output iterator out. At most n characters are written. If present, loc is used for locale-specific formatting. Let CharT be char for …

The format string consists of ordinary byte characters (except %), which are copied unchanged into the output stream, and conversion specifications. Each conversion specification has the following format: …

Standard library header <format> (C++20) This header is part of the text processing library.

The alias templates format_string and wformat_string use std::type_identity_t to inhibit template argument deduction. Typically, when they appear as a function parameter, their template arguments …

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