mirror of
https://github.com/fluencelabs/wasmer
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39 lines
907 B
C
39 lines
907 B
C
/*
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* Copyright 2016 The Emscripten Authors. All rights reserved.
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* Emscripten is available under two separate licenses, the MIT license and the
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* University of Illinois/NCSA Open Source License. Both these licenses can be
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* found in the LICENSE file.
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*/
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#include <stdio.h>
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#include <setjmp.h>
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static jmp_buf buf;
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void (*fp)() = NULL;
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void second(void) {
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printf("second\n"); // prints
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longjmp(buf, 1); // jumps back to where setjmp was called - making setjmp now
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// return 1
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}
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void first(void) {
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fp();
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printf("first\n"); // does not print
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}
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int main(int argc, char **argv) {
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fp = argc == 200 ? NULL : second;
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volatile int x = 0;
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if (!setjmp(buf)) {
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x++;
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first(); // when executed, setjmp returns 0
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} else { // when longjmp jumps back, setjmp returns 1
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printf("main: %d\n", x); // prints
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}
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return 0;
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}
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