vir::bad_value_preserving_cast Class Reference

Exception thrown when conversion to arithmetic type would change value. More...

#include <val.h>

Public Member Functions
consteval	bad_value_preserving_cast (source_location __where=source_location::current()) noexcept
	Construct with source location.
consteval	bad_value_preserving_cast (const bad_value_preserving_cast &)=default
	Defaulted copy constructor.
consteval	bad_value_preserving_cast (bad_value_preserving_cast &&)=default
	Defaulted move constructor.
consteval bad_value_preserving_cast &	operator= (const bad_value_preserving_cast &)=default
	Defaulted copy assignment.
consteval bad_value_preserving_cast &	operator= (bad_value_preserving_cast &&)=default
	Defaulted move assignment.
consteval const char *	what () const noexcept override
	Get error description.
consteval u8string_view	u8what () const noexcept
	Get UTF-8 error description.
consteval source_location	where () const noexcept
	Get source location of the failed conversion.

Detailed Description

Exception thrown when conversion to arithmetic type would change value.

This exception is thrown at compile time (and can only be caught at compile time) when attempting to convert a constinteger or constreal to an arithmetic type that cannot preserve the exact value (e.g., overflow, precision loss, or range violation).

The type is consteval-only to ensure it can only be used at compile time.

Constructor & Destructor Documentation

bad_value_preserving_cast()

vir::bad_value_preserving_cast::bad_value_preserving_cast ( source_location __where = source_location::current() )

inlineconstevalnoexcept

Construct with source location.

Parameters

__where

Source location where the conversion failed

Member Function Documentation

what()

const char * vir::bad_value_preserving_cast::what ( ) const

inlineconstevaloverridenoexcept

Get error description.

Returns

const char* Error message

u8what()

u8string_view vir::bad_value_preserving_cast::u8what ( ) const

inlineconstevalnoexcept

Get UTF-8 error description.

Returns

u8string_view UTF-8 error message

where()

source_location vir::bad_value_preserving_cast::where ( ) const

inlineconstevalnoexcept

Get source location of the failed conversion.

Returns

source_location Where the error occurred

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The documentation for this class was generated from the following file:

• include/vir/val.h