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Annotation of 43BSDReno/usr.bin/tn3270/general/general.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  *
        !            17:  *     @(#)general.h   4.1 (Berkeley) 12/4/88
        !            18:  */
        !            19: 
        !            20: /*
        !            21:  * Some general definitions.
        !            22:  */
        !            23: 
        !            24: #define        numberof(x)     (sizeof x/sizeof x[0])
        !            25: #define        highestof(x)    (numberof(x)-1)
        !            26: 
        !            27: #if    defined(unix)
        !            28: #define        ClearElement(x)         bzero((char *)&x, sizeof x)
        !            29: #define        ClearArray(x)           bzero((char *)x, sizeof x)
        !            30: #else  /* defined(unix) */
        !            31: #define        ClearElement(x)         memset((char *)&x, 0, sizeof x)
        !            32: #define        ClearArray(x)           memset((char *)x, 0, sizeof x)
        !            33: #endif /* defined(unix) */
        !            34: 
        !            35: #if    defined(unix)           /* Define BSD equivalent mem* functions */
        !            36: #define        memcpy(dest,src,n)      bcopy(src,dest,n)
        !            37: #define        memmove(dest,src,n)     bcopy(src,dest,n)
        !            38: #define        memset(s,c,n)           if (c == 0) { \
        !            39:                                    bzero(s,n); \
        !            40:                                } else { \
        !            41:                                    register char *src = s; \
        !            42:                                    register int count = n; \
        !            43:                                        \
        !            44:                                    while (count--) { \
        !            45:                                        *src++ = c; \
        !            46:                                    } \
        !            47:                                }
        !            48: #define        memcmp(s1,s2,n)         bcmp(s1,s2,n)
        !            49: #endif /* defined(unix) */

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