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PCD
Function:
The realloc function changes the size of the object pointed to by the ptr to the size
specified by the size. The contents of the object shall be unchanged up to the
lesser of new and old sizes. If the new size is larger, the value of the newly
allocated space is indeterminate. If ptr is a null pointer, the realloc function
behaves like malloc function for the specified size. If the ptr does not match a
pointer earlier returned by the calloc, malloc or realloc, or if the space has been
deallocated by a call to free or realloc function, the behavior is undefined. If the
space cannot be allocated, the object pointed to by ptr is unchanged. If size is zero
and the ptr is not a null pointer, the object is to be freed.
Availability: All devices
Requires:
Examples:
Example
Files:
Also See:
#INCLUDE <stdlibm.h>
int * iptr;
iptr=malloc(10);
realloc(iptr,20)
// iptr will point to a block of memory of 20 bytes, if available.
None
malloc(), free(), calloc()
release_io()
Syntax:
Parameters:
Returns:
Function:
Availability:
Requires:
Examples:
Example
236
release_io();
none
nothing
The function releases the I/O pins after the device wakes up from deep sleep,
allowing
the state of the I/O pins to change
Devices with a deep sleep module.
Nothing
unsigned int16 restart;
restart = restart_cause();
if(restart == RTC_FROM_DS)
release_io();
None
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