Guardian Procedure Calls Reference Manual (G06.25+)

Guardian Procedure Calls (H-K)

Guardian Procedure Calls Reference Manual—522629-013

7-6

HEAPSORT Procedure

Summary

Syntax for C Programmers

Syntax for TAL Programmers

Parameters

Considerations

Example

Summary

The HEAPSORT procedure is used to sort an array of equal-sized elements in place.

Syntax for C Programmers

•

The compare-function parameter is an application-supplied comparison

function that must be written in C. It must return values as described earlier in this

subsection under the

compare-proc parameter in the TAL syntax.

Syntax for TAL Programmers

Parameters

array input, output

INT:ref:*

contains equal-sized elements to be sorted.

num-elements input

INT:value

is the number of elements in

array.

#include <cextdecs(HEAPSORT)>

short HEAPSORT ( short _near *array

,short num-elements

,short size-of-element

,short (*)()compare-function );

CALL HEAPSORT ( array ! i,o

,num-elements ! i

,size-of-element ! i

,compare-proc ); ! i