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comparison src/stdlib/SDL_iconv.c @ 2136:5a1b6fe6e90f

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iconv() doesn't write to the data, just make compilers happy
author Sam Lantinga <slouken@libsdl.org>
date Thu, 28 Jun 2007 08:35:35 +0000
parents 0313af081a84
children ca80c942e69c
comparison
equal deleted inserted replaced
2135:0313af081a84 2136:5a1b6fe6e90f
25 25
26 #include "SDL_stdinc.h" 26 #include "SDL_stdinc.h"
27 #include "SDL_endian.h" 27 #include "SDL_endian.h"
28 28
29 #ifdef HAVE_ICONV 29 #ifdef HAVE_ICONV
30
31 /* Depending on which standard the iconv() was implemented with,
32 iconv() may or may not use const char ** for the inbuf param.
33 If we get this wrong, it's just a warning, so no big deal.
34 */
35 #if defined(_XGP6) || \
36 defined(__GLIBC__) && ((__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2))
37 #define ICONV_INBUF_NONCONST
38 #endif
30 39
31 #include <errno.h> 40 #include <errno.h>
32 41
33 size_t 42 size_t
34 SDL_iconv(SDL_iconv_t cd, 43 SDL_iconv(SDL_iconv_t cd,
35 const char **inbuf, size_t * inbytesleft, 44 const char **inbuf, size_t * inbytesleft,
36 char **outbuf, size_t * outbytesleft) 45 char **outbuf, size_t * outbytesleft)
37 { 46 {
38 size_t retCode; 47 size_t retCode;
39 #ifdef ICONV_REALLY_MODIFIES_INBUF 48 #ifdef ICONV_INBUF_NONCONST
40 if (inbuf && *inbuf && inbytesleft) { 49 retCode = iconv(cd, (char **) inbuf, inbytesleft, outbuf, outbytesleft);
41 char *tmp = SDL_stack_alloc(char, *inbytesleft);
42 char *ptr = tmp;
43 SDL_memcpy(tmp, inbuf, *inbytesleft);
44 retCode = iconv(cd, &ptr, inbytesleft, outbuf, outbytesleft);
45 inbuf += (ptr - tmp);
46 SDL_stack_free(tmp);
47 } else {
48 retCode = iconv(cd, NULL, inbytesleft, outbuf, outbytesleft);
49 }
50 #else 50 #else
51 retCode = iconv(cd, (char **) inbuf, inbytesleft, outbuf, outbytesleft); 51 retCode = iconv(cd, inbuf, inbytesleft, outbuf, outbytesleft);
52 #endif 52 #endif
53 if (retCode == (size_t) - 1) { 53 if (retCode == (size_t) - 1) {
54 switch (errno) { 54 switch (errno) {
55 case E2BIG: 55 case E2BIG:
56 return SDL_ICONV_E2BIG; 56 return SDL_ICONV_E2BIG;