1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/persistentdata/persistentstorage/sqlite3api/TEST/TCL/tcldistribution/compat/memcmp.c	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,62 @@
     1.4 +/* 
     1.5 + * memcmp.c --
     1.6 + *
     1.7 + *	Source code for the "memcmp" library routine.
     1.8 + *
     1.9 + * Copyright (c) 1998 Sun Microsystems, Inc.
    1.10 + *
    1.11 + * See the file "license.terms" for information on usage and redistribution
    1.12 + * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
    1.13 + *
    1.14 + * SCCS: @(#) memcmp.c 1.2 98/01/19 10:48:58
    1.15 + */
    1.16 +
    1.17 +#include "tcl.h"
    1.18 +#include "tclPort.h"
    1.19 +
    1.20 +/*
    1.21 + * Here is the prototype just in case it is not included
    1.22 + * in tclPort.h.
    1.23 + */
    1.24 +
    1.25 +int		memcmp _ANSI_ARGS_((CONST VOID *s1,
    1.26 +			    CONST VOID *s2, size_t n));
    1.27 +
    1.28 +/*
    1.29 + *----------------------------------------------------------------------
    1.30 + *
    1.31 + * memcmp --
    1.32 + *
    1.33 + *	Compares two bytes sequences.
    1.34 + *
    1.35 + * Results:
    1.36 + *     compares  its  arguments, looking at the first n
    1.37 + *     bytes (each interpreted as an unsigned char), and  returns
    1.38 + *     an integer less than, equal to, or greater than 0, accord-
    1.39 + *     ing as s1 is less  than,  equal  to,  or
    1.40 + *     greater than s2 when taken to be unsigned 8 bit numbers.
    1.41 + *
    1.42 + * Side effects:
    1.43 + *	None.
    1.44 + *
    1.45 + *----------------------------------------------------------------------
    1.46 + */
    1.47 +
    1.48 +int
    1.49 +memcmp(s1, s2, n)
    1.50 +    CONST VOID *s1;			/* First string. */
    1.51 +    CONST VOID *s2;			/* Second string. */
    1.52 +    size_t      n;                      /* Length to compare. */
    1.53 +{
    1.54 +    CONST unsigned char *ptr1 = (CONST unsigned char *) s1;
    1.55 +    CONST unsigned char *ptr2 = (CONST unsigned char *) s2;
    1.56 +
    1.57 +    for ( ; n-- ; ptr1++, ptr2++) {
    1.58 +	unsigned char u1 = *s1, u2 = *s2;
    1.59 +
    1.60 +	if ( u1 != u2) {
    1.61 +	    return (u1-u2);
    1.62 +	}
    1.63 +    }
    1.64 +    return 0;
    1.65 +}