search for: isdupl

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2008 Aug 16
1
unique.default problem (PR#12551)
...ear developers, The following line of code (produced by a mistake) caused an infinite loop unique("a",c("a","b")) or also unique(1,1:2) I made a little investigation, and it seems to be that the following function from unique.c is looping infinitely static int isDuplicated(SEXP x, int indx, HashData *d) { int i, *h; h = INTEGER(d->HashTable); i = d->hash(x, indx, d); while (h[i] != NIL) { if (d->equal(x, h[i], x, indx)) return h[i] >= 0 ? 1 : 0; i = (i + 1) % d->M; } h[i] = indx; return 0; } In this case h c...
2009 May 08
1
anyDuplicated(incomp=NA) fails
...x: unique.c =================================================================== --- unique.c (revision 48503) +++ unique.c (working copy) @@ -462,16 +462,18 @@ for (i = 0; i < data.M; i++) h[i] = NIL; if(from_last) for (i = n-1; i >= 0; i--) { -#define IS_DUPLICATED_CHECK - if(isDuplicated(x, i, &data)) { - Rboolean isDup = TRUE; - for(j = 0; j < m; j++) - if(data.equal(x, i, incomp, j)) { - isDup = FALSE; break; - } - if(isDup) - return ++i; - /* else continue */ +#define IS_DUPLICATED_CHECK \ + if(isDuplicated(x, i, &data)) { \ + Rboolean...