CRE Programmer's Guide

String and Memory Block Functions

Common Run-Time Environment (CRE) Programmer’s Guide—528146-004

8-40

Memory_Swap

The Memory_Swap functions exchange one block of memory with a second block of

memory. These functions are not available in the native CRE library.

buf1

is a pointer to the first block of memory.

buf2

is a pointer to the second block of memory.

num_bytes

specifies the number of bytes to exchange.

Considerations

The Memory_Swap procedures are declared as procedures, not as functions. They do

not return a value.

Example

STRING .up[0:9] := "0123456789";

STRING .down[0:9] := "9876543210";

CALL RTL_Memory_Swap_( up, down, 10 );

PROC RTL_Memory_Swap_( buf1, buf2, num_bytes );

STRING .buf1; ! in/out

STRING .buf2; ! in/out

INT num_bytes; ! in TNS

only

PROC RTL_Memory_SwapX_( buf1, buf2, num_bytes );

STRING .EXT buf1; ! in/out

STRING .EXT buf2; ! in/out

INT(32) num_bytes; ! in TNS

only