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/*
* Copyright 2016 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <setjmp.h>
#include <stdio.h>
typedef struct {
jmp_buf* jmp;
} jmp_state;
void second_func(jmp_state* s);
void first_func(jmp_state* s) {
jmp_buf* prev_jmp = s->jmp;
jmp_buf c_jmp;
volatile int once = 0;
if (setjmp(c_jmp) == 0) {
printf("Normal execution path of first function!\n");
s->jmp = &c_jmp;
second_func(s);
} else {
printf("Exception execution path of first function! %d\n", once);
if (!once) {
printf("Calling longjmp the second time!\n");
once = 1;
longjmp(*(s->jmp), 1);
}
}
}
void second_func(jmp_state* s) { longjmp(*(s->jmp), 1); }
int main(int argc, char* argv[]) {
jmp_state s;
s.jmp = NULL;
first_func(&s);
return 0;
}
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