diff options
author | Christopher Faylor <me@cgf.cx> | 2000-02-17 22:38:33 +0300 |
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committer | Christopher Faylor <me@cgf.cx> | 2000-02-17 22:38:33 +0300 |
commit | 1fd5e000ace55b323124c7e556a7a864b972a5c4 (patch) | |
tree | dc4fcf1e5e22a040716ef92c496b8d94959b2baa /winsup/mingw/include/setjmp.h | |
parent | 369d8a8fd5e887eca547bf34bccfdf755c9e5397 (diff) |
import winsup-2000-02-17 snapshot
Diffstat (limited to 'winsup/mingw/include/setjmp.h')
-rw-r--r-- | winsup/mingw/include/setjmp.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/winsup/mingw/include/setjmp.h b/winsup/mingw/include/setjmp.h new file mode 100644 index 000000000..9164178d4 --- /dev/null +++ b/winsup/mingw/include/setjmp.h @@ -0,0 +1,72 @@ +/* + * setjmp.h + * + * Declarations supporting setjmp and longjump, a method for avoiding + * the normal function call return sequence. (Bleah!) + * + * This file is part of the Mingw32 package. + * + * Contributors: + * Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp> + * + * THIS SOFTWARE IS NOT COPYRIGHTED + * + * This source code is offered for use in the public domain. You may + * use, modify or distribute it freely. + * + * This code is distributed in the hope that it will be useful but + * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY + * DISCLAMED. This includes but is not limited to warranties of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * $Revision$ + * $Author$ + * $Date$ + * + */ + +#ifndef _SETJMP_H_ +#define _SETJMP_H_ + +/* All the headers include this file. */ +#include <_mingw.h> + +#ifndef RC_INVOKED + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * The buffer used by setjmp to store the information used by longjmp + * to perform it's evil goto-like work. The size of this buffer was + * determined through experimentation; it's contents are a mystery. + * NOTE: This was determined on an i386 (actually a Pentium). The + * contents could be different on an Alpha or something else. + */ +#define _JBLEN 16 +#define _JBTYPE int +typedef _JBTYPE jmp_buf[_JBLEN]; + +/* + * The function provided by CRTDLL which appears to do the actual work + * of setjmp. + */ +int _setjmp (jmp_buf); + +#define setjmp(x) _setjmp(x) + +/* + * Return to the last setjmp call and act as if setjmp had returned + * nVal (which had better be non-zero!). + */ +void longjmp (jmp_buf, int); + +#ifdef __cplusplus +} +#endif + +#endif /* Not RC_INVOKED */ + +#endif /* Not _SETJMP_H_ */ + |