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Annotation of 42BSD/usr.lib/learn/C/getnum.c, revision 1.1.1.1

1.1       root        1: #include <stdio.h>
                      2: 
                      3: getnum()
                      4: {
                      5:        int c, n;
                      6: 
                      7:        n = 0;
                      8:        while ((c=getchar()) >= '0' && c <= '9')
                      9:                n = n*10 + c - '0';
                     10:        if (c == EOF)
                     11:                return(-1);
                     12:        return(n);
                     13: }

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