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57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
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* setjmp.h
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is a part of the mingw-runtime package.
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* No warranty is given; refer to the file DISCLAIMER within the package.
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*
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* Declarations supporting setjmp and longjump, a method for avoiding
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* the normal function call return sequence. (Bleah!)
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*
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*/
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#ifndef _SETJMP_H_
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#define _SETJMP_H_
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/* All the headers include this file. */
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#include <_mingw.h>
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#ifndef RC_INVOKED
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* The buffer used by setjmp to store the information used by longjmp
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* to perform it's evil goto-like work. The size of this buffer was
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* determined through experimentation; it's contents are a mystery.
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* NOTE: This was determined on an i386 (actually a Pentium). The
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* contents could be different on an Alpha or something else.
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*/
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#define _JBLEN 16
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#define _JBTYPE int
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typedef _JBTYPE jmp_buf[_JBLEN];
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/*
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* The function provided by CRTDLL which appears to do the actual work
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* of setjmp.
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*/
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_CRTIMP int __cdecl __MINGW_NOTHROW _setjmp (jmp_buf);
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#define setjmp(x) _setjmp(x)
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/*
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* Return to the last setjmp call and act as if setjmp had returned
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* nVal (which had better be non-zero!).
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*/
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_CRTIMP void __cdecl __MINGW_NOTHROW longjmp (jmp_buf, int) __MINGW_ATTRIB_NORETURN;
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#ifdef __cplusplus
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}
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#endif
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#endif /* Not RC_INVOKED */
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#endif /* Not _SETJMP_H_ */
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