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Annotation of researchv10no/cmd/basic/bite/src/equal.c, revision 1.1.1.1

1.1       root        1: /* Copyright Bell Telephone Laboratories Whippany, N.J.
                      2: 
                      3:  *     /////////////////////////////////////
                      4:  *     /////////////////////////////////////
                      5:  *     ////////////// equal.c //////////////
                      6:  *     /// J. P. Hawkins WH X4610 8C-001 ///
                      7:  *     ///// Sun Aug 26 08:11:11 1979 //////
                      8:  *     /////////////////////////////////////
                      9:  *     /////////////////////////////////////
                     10: 
                     11:  *
                     12:  * This function is similar, but NOT the same as strcmp
                     13:  * If the string being tested begins with the character string
                     14:  * being compared to the test passes and is non-zero (length of string)
                     15:  * If the test fails a zero is returned.
                     16:  * this philosophy lends itself to code that appears like
                     17:  *     if(equal(buf,"jim"))
                     18:  */
                     19: /*   "@(#) equal.c:  V 1.1  12/21/80" */
                     20: equal(ptr,string)
                     21: char   *ptr;
                     22: char   *string;
                     23: {
                     24:        register char   *i, *j;
                     25:        i = ptr;
                     26:        j = string;
                     27: 
                     28:        while((*i == *j) && (*j != '\0'))
                     29:        {
                     30:                j++;
                     31:                i++;
                     32:        }
                     33:        if(*j == '\0')
                     34:                return(j - string);
                     35:        return(0);
                     36: }

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