Loads and executes new child processes.
This API cannot be used in applications that execute in the Windows Runtime. For more information, see CRT functions not supported with /ZW.
intptr_t _execv( const char *cmdname, const char *const *argv ); intptr_t _wexecv( const wchar_t *cmdname, const wchar_t *const *argv );
Path of the file to execute.
Array of pointers to parameters.
If successful, these functions do not return to the calling process. A return value of -1 indicates an error, in which case the
errno global variable is set.
||The space required for the arguments and environment settings exceeds 32 KB.|
||The specified file has a locking or sharing violation.|
||Too many files open (the specified file must be opened to determine whether it is executable).|
||The file or path not found.|
||The specified file is not executable or has an invalid executable-file format.|
||Not enough memory is available to execute the new process; the available memory has been corrupted; or an invalid block exists, indicating that the calling process was not allocated properly.|
For more information about these and other return codes, see _doserrno, errno, _sys_errlist, and _sys_nerr.
Each of these functions loads and executes a new process, passing an array of pointers to command-line arguments.
_execv functions validate their parameters. If
cmdname is a null pointer, or if
argv is a null pointer, pointer to an empty array, or if the array contains an empty string as the first argument, the
_execv functions invoke the invalid parameter handler as described in Parameter Validation. If execution is allowed to continue, these functions set
EINVAL and return -1. No process is launched.
|Function||Required header||Optional header|
||<process.h> or <wchar.h>||<errno.h>|
For more compatibility information, see Compatibility.
See the example in _exec, _wexec Functions.