Tuszynski, Jaroslaw W. wrote:
>Hi,
>
>I have a C code which produces array of integers and potentially a string,
>and I have problems passing the string out. Here is the relevant part of the
>code:
>
> 1 PROTECT(Ret = allocVector(INTSXP, n));
> 2 ret = (int*) INTEGER(Ret); /* get pointer to R's Ret */
> 3 for(i=0; i<n; i++) ret[i] = data[i];
> 4 Free(data);
> 5 i=1;
> 6 if (comment) { // comment was found
> 7 n = strlen(comment);
> 8 if(n>0) { // and it actually have some length
> 9 Rprintf(" '%s' %i\n", comment, n);
> 10 PROTECT(Str = allocString(n+1));
> 11 str = CHAR(STRING_ELT(Str, 0));
> 12 strcpy(str, comment);
> 13 Rprintf(" '%s' %i\n", str, n);
> 14 setAttrib(Ret, install("comm"), Str);
> 15 i=2;
> 16 }
> 17 Free(comment);
> 18 }
> 20 UNPROTECT(i);
>
>Print statement in line 9 gives right results, but program crashes before
>print statement in line 13.
>Any ideas to what am I doing wrong?
>
>Jarek
>=====================================\====
> Jarek Tuszynski, PhD. o / \
> Science Applications International Corporation <\__,|
> (703) 676-4192 "> \
> [EMAIL PROTECTED] ` \
>
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>
>
SEXP charToSexp(char * val) {
USER_OBJECT_ ans;
PROTECT(ans = NEW_CHARACTER(1));
if(val)
SET_STRING_ELT(ans, 0, COPY_TO_USER_STRING(val));
UNPROTECT(1);
return(ans);
}
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