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Annotation of 43BSD/contrib/icon/functions/pos.c, revision 1.1.1.1

1.1       root        1: #include "../h/rt.h"
                      2: 
                      3: /*
                      4:  * pos(i) - test if &pos is at position i in &subject.
                      5:  */
                      6: Xpos(nargs, arg1, arg0)
                      7: int nargs;
                      8: struct descrip arg1, arg0;
                      9:    {
                     10:    register int i;
                     11:    long l;
                     12: 
                     13:    /*
                     14:     * i must be an integer.
                     15:     */
                     16:    if (cvint(&arg1, &l) == NULL)
                     17:       runerr(101, &arg1);
                     18: 
                     19:    /*
                     20:     * Fail if &pos isn't equivalent to i, return i otherwise.
                     21:     */
                     22:    if ((i = cvpos(l, STRLEN(k_subject))) != k_pos)
                     23:       fail();
                     24:    arg0.type = D_INTEGER;
                     25:    INTVAL(arg0) = i;
                     26:    }
                     27: 
                     28: Procblock(pos,1)

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