SW500009 Microchip Technology, SW500009 Datasheet - Page 222

• Manufacturer Part Number: SW500009
• Description: HI-TECH FOR DSPIC/PIC24
• Manufacturer: Microchip Technology
• Type: Compilerr
• Series: PIC24 & DsPICr

Specifications of SW500009

• Supported Families: PIC24
• Core Architecture: PIC, DsPIC
• Software Edition: Standard
• Kit Contents: Software And Docs
• Tool Type: Compiler
• Mcu Supported Families: PIC24 MCUs And DsPIC DSCs
• Lead Free Status / RoHS Status: Not applicable / RoHS Compliant
• For Use With/related Products: DSPIC3X/PIC24
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 025; 778-1003; 778-1003

LONGJMP
Synopsis
Description
The longjmp() function, in conjunction with setjmp(), provides a mechanism for non-local goto’s.
To use this facility, setjmp() should be called with a jmp_buf argument in some outer level function.
The call from setjmp() will return 0.
from an inner level of execution. Note however that the function which called setjmp() must still be
active when longjmp() is called. Breach of this rule will cause disaster, due to the use of a stack
containing invalid data. The val argument to longjmp() will be the value apparently returned from
the setjmp(). This should normally be non-zero, to distinguish it from the genuine setjmp() call.
Example
208
To return to this level of execution, longjmp() may be called with the same jmp_buf argument
#include <setjmp.h>
void longjmp (jmp_buf buf, int val)
#include <stdio.h>
#include <setjmp.h>
#include <stdlib.h>
jmp_buf jb;
void
inner (void)
{
}
void
main (void)
{
longjmp(jb, 5);
int i;
Library Functions