gtpc2mdfC/C++ Language Support User's Guide

TO2_createSetTemp-Create a Temporary Set for the Collection

This function creates a temporary collection for the set collection and assigns it a persistent identifier (PID). A temporary collection will exist only for the life of the entry control block (ECB) and is deleted when the ECB exits.

Format

#include <c$to2.h>
long  TO2_createSetTemp (      TO2_PID_PTR   pid_ptr,
                               TO2_ENV_PTR   env_ptr,
                         const long         *entryLength);

pid_ptr
The pointer to the location where the PID assigned to the new collection will be returned.

env_ptr
The pointer to the environment as returned by the TO2_createEnv function.

entryLength
The pointer to the length of an entry in the collection. The maximum length is 256 bytes.

Normal Return

The normal return is a positive value.

Error Return

An error return is indicated by a zero. When zero is returned, use the TO2_getErrorCode function to determine the specific error code. For more information, see Error Handling.

The following error codes are common for this function:

TO2_ERROR_DATA_LGH

TO2_ERROR_ENV

Programming Considerations

Examples

The following example creates a temporary set collection.

#include <c$to2.h>          /* Needed for TO2 API functions    */
#include <stdio.h>          /* APIs for standard I/O functions */
 
TO2_ENV_PTR    env_ptr;     /* PTR to the TO2 environment      */
TO2_PID        collect;     /* will hold collection's PID      */
long           entryLength; /* Max Entry Length                */

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if (TO2_createSetTemp(&collect, env_ptr, &entryLength) == TO2_ERROR) { printf("TO2_createSetTemp failed!\n"); process_error(env_ptr); } else { printf("TO2_createSetTemp successful!\n"); }
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TO2_deleteCollection(&collect, env_ptr);

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