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Re: gconv bug and documentation deficiency
Ulrich Drepper <drepper@redhat.com> writes:
> Owen Taylor <otaylor@redhat.com> writes:
>
> > The bug:
>
> I've fixed this now.
>
> > iconv() can exit with an errno of E2BIG for 2 reasons:
> >
> > - The output buffer is full
> > - An internal intermediate buffer is full
>
> Give me an example. This should never be the case. The internal
> buffers should at no point have visible effects. If an internal
> buffer is full the next conversion in the chain is called to flush it.
Attached,
Owen
#include <iconv.h>
#include <errno.h>
#include <stdio.h>
#define BUFSIZE 10000
int main (int argc, char **argv)
{
char inbuf[BUFSIZE];
wchar_t outbuf[BUFSIZE];
iconv_t cd;
int i;
char *inptr;
char *outptr;
size_t inbytes_left, outbytes_left;
int count;
for (i=0; i < BUFSIZE; i++)
inbuf[i] = 'a';
cd = iconv_open ("UCS-4LE", "UTF-8");
inbytes_left = BUFSIZE;
outbytes_left = BUFSIZE * 4;
inptr = inbuf;
outptr = (char *)outbuf;
count = iconv (cd, &inptr, &inbytes_left, &outptr, &outbytes_left);
if (count < 0)
{
if (errno == E2BIG)
printf ("Received E2BIG\n");
else
printf ("Received something else\n");
}
else
printf ("Succeeded\n");
return 0;
}