Process Control Function

int execvp(const char *filename, char *const argv[]);

int _execvp(const char *cmdname, const char *const *argv);

int _wexecvp(const wchar_t *cmdname, const wchar_t *const *argv);

int _texecvp(const TCHAR *cmdname, const TCHAR *const *argv);

Internationalization (I18n) Function Overview

These functions load and execute a new process. They are similar to _execv/execv, except that they search the directories listed in the PATH environment variable to find filename/cmdname.

_wexecvp is the wide-character version of the function; its parameters and return value are wide characters. _wexecvp is supported on Windows platforms only. There is no wide version on ANSI platforms.

_texecvp is the Windows-only Generic version of the function; with the _MBCS or _UNICODE compiler flags determining its mapping to either _execvp or _wexecvp.

I18n Issues

Use the appropriate version of the function as required for internationalization support, noting the following:

For a Windows MBCS application, _execvp depends on the multibyte code page in effect. By default, the multibyte code page is set to the system-default ANSI code page obtained from the operating system at program startup. Use _getmbcp and _setmbcp to query or change the current multibyte code page, respectively.

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 execvp function can be used.

Recommended Replacements*

ANSI UTF-8	execvp
ANSI UTF-16	convert and use execvp
	(See "I18n Issues" above)
Microsoft Windows MBCS	_execvp
Microsoft Windows Unicode	_wexecvp
Microsoft Windows Generic	_texecvp

Process Control Functions