ANSI Error Message Function

void vwarnx(const char *format, va_list);

Internationalization (I18n) Function Overview

The vwarnx function is closely related to both the error and warn functions.

Its roughly equivalent to a call like error(status, 0, format, ...), except that the global variable error is not used, the parameters are passed in using the type va_list, and no error number string is printed.

Its also the same as the vwarn function except that no error number string is printed. Note that this feature distinguishes vwarnx from vwarn in that it does not have the embedded English error text problem, and therefore is more safe for internationalized applications.

I18n Issues

Prior to calling this function, ensure that the current locale is set properly by calling setlocale, as string formatting is dependent on the LC_NUMERIC locale category. See String Formatting in C and C++ for a discussion on locale-sensitive formatting in internationalized applications.

There is no ANSI wide character version of this function. The parameters will have to be converted to multibyte UTF-8 characters and then the vwarnx function can be used.

Recommended Replacements*

ANSI UTF-8	vwarnx
ANSI UTF-16	convert and use vwarnx
	(See "I18n Issues" above)

ANSI Error Message Functions