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iconv() doesn't write to the data, just make compilers happy

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--HG--
branch : SDL-1.2
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%402389
This commit is contained in:
Sam Lantinga 2007-06-28 08:33:59 +00:00
parent 2fd06952d1
commit 9a001803a5
1 changed files with 12 additions and 12 deletions
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24
src/stdlib/SDL_iconv.c
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@ -28,6 +28,15 @@
#ifdef HAVE_ICONV
/* Depending on which standard the iconv() was implemented with,
iconv() may or may not use const char ** for the inbuf param.
If we get this wrong, it's just a warning, so no big deal.
*/
#if defined(_XGP6) || \
defined(__GLIBC__) && ((__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2))
#define ICONV_INBUF_NONCONST
#endif
#include <errno.h>
size_t SDL_iconv(SDL_iconv_t cd,
@ -35,19 +44,10 @@ size_t SDL_iconv(SDL_iconv_t cd,
char **outbuf, size_t *outbytesleft)
{
size_t retCode;
#ifdef ICONV_REALLY_MODIFIES_INBUF
if ( inbuf && *inbuf && inbytesleft ) {
char *tmp = SDL_stack_alloc(char, *inbytesleft);
char *ptr = tmp;
SDL_memcpy(tmp, inbuf, *inbytesleft);
retCode = iconv(cd, &ptr, inbytesleft, outbuf, outbytesleft);
inbuf += (ptr - tmp);
SDL_stack_free(tmp);
} else {
retCode = iconv(cd, NULL, inbytesleft, outbuf, outbytesleft);
}
#else
#ifdef ICONV_INBUF_NONCONST
retCode = iconv(cd, (char **)inbuf, inbytesleft, outbuf, outbytesleft);
#else
retCode = iconv(cd, inbuf, inbytesleft, outbuf, outbytesleft);
#endif
if ( retCode == (size_t)-1 ) {
switch(errno) {