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std::format_error

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< cpp‎ | utility‎ | format
 
C++
 
Text processing library
 
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Format error
format_error
(C++20)
 
Defined in header <format>
class format_error : public runtime_error
 (since C++20)

Defines the type of exception object thrown to report errors in the formatting library.

All member functions of std::format_error are constexpr: it is possible to create and use std::format_error objects in the evaluation of a constant expression.

However, std::format_error objects generally cannot be constexpr, because any dynamically allocated storage must be released in the same evaluation of constant expression.

 (since C++26)
cpp/error/exceptioncpp/error/runtime errorstd-format error-inheritance.svg

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