C++ In a Nutshell

Name

EILSEQ macro — Code for error in a multibyte character sequence

Synopsis

int EILSEQ
               

Standard library functions that report errors in multibyte character sequences set errno to EILSEQ. For example, passing an invalid wide character to the wcrtomb function results in EILSEQ.

The EILSEQ macro expands to a nonzero integer constant. The value of EILSEQ is implementation-defined.

Note that EILSEQ is not mentioned in the C++ standard, but because C++ includes the C standard library (Amendment 1), and EILSEQ is part of the C standard, it is part of the C++ standard.