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 in Universal Windows Platform apps.
intptr_t _execlpe( const char *cmdname, const char *arg0, ... const char *argn, NULL, const char *const *envp ); intptr_t _wexeclpe( const wchar_t *cmdname, const wchar_t *arg0, ... const wchar_t *argn, NULL, const wchar_t *const *envp );
Path of the file to execute.
arg0, ... argn
List of pointers to parameters.
Array of pointers to environment settings.
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.
|E2BIG||The space required for the arguments and environment settings exceeds 32 KB.|
|EACCES||The specified file has a locking or sharing violation.|
|EMFILE||Too many files open (the specified file must be opened to determine whether it is executable).|
|ENOENT||The file or path not found.|
|ENOEXEC||The specified file is not executable or has an invalid executable-file format.|
|ENOMEM||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 each command-line argument as a separate parameter and also passing an array of pointers to environment settings. These functions use the PATH environment variable to find the file to execute.
The _execlpe functions validate their parameters. If either cmdname or arg0 is a null pointers or empty string, these functions invoke the invalid parameter handler as described in Parameter Validation. If execution is allowed to continue, these functions set errno to EINVAL and return -1. No new process is launched.
|Function||Required header||Optional header|
|_wexeclpe||<process.h> or <wchar.h>||<errno.h>|
For more compatibility information, see Compatibility.
See the example in _exec, _wexec Functions.