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Annotation of 43BSDReno/usr.bin/telnet/general.h, revision 1.1.1.1

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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