Checks for the existence of the specified program.
call x"91" using result function-code parameter
| Using call prototype (see Library Routines - Key) | Picture (32-bit systems) | ||||
|---|---|---|---|---|---|
| result | cblt-x1-compx | pic x comp-x. | |||
| function-code | cblt-x1-compx | pic x comp-x. | |||
| parameter | Group containing: | Group containing: | |||
| name-len | cblt-x1-compx | pic x comp-x | |||
| progname | pic x(n) | pic x(n) | |||
| function-code | Value 15 |
| name-len | The length of the name in filename. |
| progname | The name of the program to be looked for. This parameter must be at least 65 characters long. |
| progname | If the program is found, contains the full name. |
| result | Set to zero if the program was found, non-zero otherwise. |
If the program file is found, you must then call the program using the filename returned.
This call must not be used to check for the existence of data files; use CBL_CHECK_FILE_EXIST instead.