32 lines
541 B
C
32 lines
541 B
C
#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()
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Configures a jump by saving data to the given jump buffer.
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@arg env Empty jump buffer.
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*/
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int setjmp(jmp_buf env);
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/*
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longjmp()
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Performs a long jump.
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@arg env Jump buffer configure with setjmp().
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@arg value setjmp() will return this integer after the 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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