| 1 | /** |
| 2 | * This file has no copyright assigned and is placed in the Public Domain. |
| 3 | * This file is part of the mingw-w64 runtime package. |
| 4 | * No warranty is given; refer to the file DISCLAIMER.PD within this package. |
| 5 | */ |
| 6 | |
| 7 | #define __LARGE_MBSTATE_T |
| 8 | |
| 9 | #ifndef WIN32_LEAN_AND_MEAN |
| 10 | #define WIN32_LEAN_AND_MEAN |
| 11 | #endif |
| 12 | #include <locale.h> |
| 13 | #include <limits.h> |
| 14 | #include <wchar.h> |
| 15 | #include <stdio.h> |
| 16 | #include <stdlib.h> |
| 17 | #include <errno.h> |
| 18 | #include <windows.h> |
| 19 | |
| 20 | int wctob (wint_t wc) |
| 21 | { |
| 22 | /* Return early */ |
| 23 | if (IS_LOW_SURROGATE (wc) || IS_HIGH_SURROGATE (wc) || wc == WEOF) { |
| 24 | return EOF; |
| 25 | } |
| 26 | |
| 27 | mbstate_t state = {0}; |
| 28 | /* Buffer large enough to hold any multibyte character */ |
| 29 | char mbc[MB_LEN_MAX]; |
| 30 | |
| 31 | size_t length = wcrtomb (mbc, wc, &state); |
| 32 | if (length > 1) { |
| 33 | return EOF; |
| 34 | } |
| 35 | |
| 36 | return (unsigned char) mbc[0]; |
| 37 | } |
| 38 | |
| 39 | int (__cdecl *__MINGW_IMP_SYMBOL (wctob)) (wint_t) = wctob; |