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35 lines
610 B
C
35 lines
610 B
C
//---
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//
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// gint standard module: setjmp
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//
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// Long jumps. The register contents are saved in a buffer when setjmp()
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// is called and restored at any time when longjmp() performs the jump.
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//
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//---
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#ifndef _SETJMP_H
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#define _SETJMP_H 1
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// There are 16 CPU registers that *must* be saved to ensure a basically
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// safe jump.
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typedef unsigned int jmp_buf[16];
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//---
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// Long jump functions.
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//---
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/*
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setjmp() O(1)
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Configures a jump by saving data to the given jump buffer.
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*/
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int setjmp(jmp_buf env);
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/*
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longjmp() O(1)
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Performs a long jump.
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*/
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void longjmp(jmp_buf env, int value);
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#endif // _SETJMP_H
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