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ZBasic System Library
268
ZX Microcontroller Family
System.HeapHeadRoom
Type
Function returning UnsignedInteger
Invocation
System.HeapHeadRoom()
Discussion
This function determines the amount of space in the string heap that has never been used irrespective of
the current end-of-heap position. The primary use for it is to determine the amount of heap space used
by an application in order to balance the requirements of the heap and the various task stacks.
Compatibility
For VM mode devices, this function will always return &HFFFF unless you have specified a heap limit
value, directly or indirectly. See the Option MainTaskStackSize, Option HeapSize, and Option
HeapLimit directives for more information.
See Also
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