SW006013 Microchip Technology, SW006013 Datasheet - Page 105
SW006013
Manufacturer Part Number
SW006013
Description
MPLAB C Compiler For DsPIC DSCs
Manufacturer
Microchip Technology
Series
DsPIC30F/33Fr
Type
MPLAB® C Compilerr
Datasheet
1.SW006014.pdf
(246 pages)
Specifications of SW006013
Supported Families
DsPIC30F, DsPIC33F
Core Architecture
DsPIC
Kit Contents
Software And Docs
Mcu Supported Families
DsPIC30F And DsPIC33F
Tool Function
Compiler
Tool Type
Compiler
Processor Series
dsPIC
Lead Free Status / RoHS Status
na
For Use With/related Products
dSPIC DSCs
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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© 2008 Microchip Technology Inc.
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Description:
Include:
Prototype:
Argument:
Remarks:
Example:
getenv
Description:
Include:
Prototype:
Argument:
Return Value:
Remarks:
Frees memory.
<stdlib.h>
void free(void *ptr);
ptr
Frees memory previously allocated with calloc, malloc, or real-
loc. If free is used on space that has already been deallocated (by a
previous call to free or by realloc) or on space not allocated with
calloc, malloc, or realloc, the behavior is undefined.
#include <stdio.h>
#include <stdlib.h> /* for malloc, free
int main(void)
{
}
Output:
Memory allocated
Memory freed
Get a value for an environment variable.
<stdlib.h>
char *getenv(const char *name);
name
Returns a pointer to the value of the environment variable if successful;
otherwise, returns a null pointer.
This function must be customized to be used as described (see
pic30-libs). By default there are no entries in the environment list
for getenv to find.
long *i;
if ((i = (long *)malloc(50 * sizeof(long))) ==
else
{
}
printf("Cannot allocate memory\n");
printf("Memory allocated\n");
free(i);
printf("Memory freed\n");
NULL)
points to memory to be freed
name of environment variable
/* for printf, sizeof, */
/* NULL
DS51456E-page 101
*/
*/
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