Analog Devices VISUALDSP++ 3.5 Manual page 346

C Run-Time Library Reference
jmp_buf env;
int res;
if ((res == setjmp(env)) != 0) {
printf ("Problem %d reported by func ()", res);
exit (EXIT_FAILURE);
}
func ();
void func (void)
{
if (errno != 0) {
longjmp (env, errno);
}
}
See Also
setjmp
3-92 VisualDSP++ 3.5 C/C++ Compiler and Library Manual
for ADSP-219x DSPs