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Annotation of 43BSDReno/usr.bin/telnet/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 provided
        !             6:  * that: (1) source distributions retain this entire copyright notice and
        !             7:  * comment, and (2) distributions including binaries display the following
        !             8:  * acknowledgement:  ``This product includes software developed by the
        !             9:  * University of California, Berkeley and its contributors'' in the
        !            10:  * documentation or other materials provided with the distribution and in
        !            11:  * all advertising materials mentioning features or use of this software.
        !            12:  * Neither the name of the University nor the names of its contributors may
        !            13:  * be used to endorse or promote products derived from this software without
        !            14:  * specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            16:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            17:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  *
        !            19:  *     @(#)general.h   1.5 (Berkeley) 6/28/90
        !            20:  */
        !            21: 
        !            22: /*
        !            23:  * Some general definitions.
        !            24:  */
        !            25: 
        !            26: 
        !            27: #define        numberof(x)     (sizeof x/sizeof x[0])
        !            28: #define        highestof(x)    (numberof(x)-1)
        !            29: 
        !            30: #if    defined(unix)
        !            31: #define        ClearElement(x)         bzero((char *)&x, sizeof x)
        !            32: #define        ClearArray(x)           bzero((char *)x, sizeof x)
        !            33: #else  /* defined(unix) */
        !            34: #define        ClearElement(x)         memset((char *)&x, 0, sizeof x)
        !            35: #define        ClearArray(x)           memset((char *)x, 0, sizeof x)
        !            36: #endif /* defined(unix) */
        !            37: 
        !            38: #if    defined(unix)           /* Define BSD equivalent mem* functions */
        !            39: #define        memcpy(dest,src,n)      bcopy(src,dest,n)
        !            40: #define        memmove(dest,src,n)     bcopy(src,dest,n)
        !            41: #define        memset(s,c,n)           if (c == 0) { \
        !            42:                                    bzero(s,n); \
        !            43:                                } else { \
        !            44:                                    register char *src = s; \
        !            45:                                    register int count = n; \
        !            46:                                        \
        !            47:                                    while (count--) { \
        !            48:                                        *src++ = c; \
        !            49:                                    } \
        !            50:                                }
        !            51: #define        memcmp(s1,s2,n)         bcmp(s1,s2,n)
        !            52: #endif /* defined(unix) */

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