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Diffstat (limited to '9/platforms/android-12/arch-mips/usr/include/sys/_wchar_limits.h')
| -rw-r--r-- | 9/platforms/android-12/arch-mips/usr/include/sys/_wchar_limits.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/9/platforms/android-12/arch-mips/usr/include/sys/_wchar_limits.h b/9/platforms/android-12/arch-mips/usr/include/sys/_wchar_limits.h new file mode 100644 index 0000000..644792f --- /dev/null +++ b/9/platforms/android-12/arch-mips/usr/include/sys/_wchar_limits.h @@ -0,0 +1,108 @@ +/* + * Copyright (C) 2013 The Android Open Source Project + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#ifndef _SYS__WCHAR_LIMITS_H +#define _SYS__WCHAR_LIMITS_H + +#include <android/api-level.h> + +/* WCHAR_MIN / WCHAR_MAX can be defined by <stdint.h> or <wchar.h>. + * Due to historical reasons, their definition is a bit complex. + * + * - In NDK r8e and older, all definitions of WCHAR_MIN and WCHAR_MAX + * where 32-bit signed values (with one exception described below), + * despite the fact that wchar_t is 'unsigned' on ARM. + * See http://b.android.com/57749 + * + * This is no longer the case, unless you define _WCHAR_IS_ALWAYS_SIGNED + * at compile time to restore the old (broken) behaviour. This doesn't + * affect other CPU ABIs. + * + * - Before API level 9, on ARM, wchar_t was typedef to 'char' when + * compiling C (not C++). Also, the definitions of WCHAR_MIN and + * WCHAR_MAX differed between <stdint.h> and <wchar.h>: + * + * <stdint.h> conditionally defined them to INT32_MIN / INT32_MAX. + * <wchar.h> conditionally defined them to 0 and 255 instead. + * + * <stdint.h> would only define WCHAR_MIN and WCHAR_MAX when: + * - Compiling C sources. + * - Compiling C++ sources with __STDC_LIMIT_MACROS being defined. + * + * <wchar.h> always ends up including <stdint.h> indirectly. This + * means that: + * + * - When compiling C sources, WCHAR_MIN / WCHAR_MAX were always + * defined as INT32_MIN / INT32_MAX. + * + * - When compiling C++ sources with __STDC_LIMIT_MACROS defined, + * they were always defined to INT32_MIN / INT32_MAX + * + * - When compiling C++ sources without __STDC_LIMIT_MACROS defined, + * they were defined by <wchar.h> as 0 and 255, respectively. + * + * Keep in mind that this was ARM-specific, only for API level < 9. + * + * If _WCHAR_IS_8BIT is defined, the same broken behaviour will + * be restored. See http://b.android.com/57267 + */ +#if !defined(WCHAR_MIN) + +# if defined(_WCHAR_IS_8BIT) && defined(__arm__) && __ANDROID_API__ < 9 +# if defined(__cplusplus) && !defined(__STDC_LIMIT_MACROS) +# define WCHAR_MIN 0 +# define WCHAR_MAX 255 +# else +# define WCHAR_MIN (-2147483647 - 1) +# define WCHAR_MAX (2147483647) +# endif +# elif defined(_WCHAR_IS_ALWAYS_SIGNED) +# define WCHAR_MIN (-2147483647 - 1) +# define WCHAR_MAX (2147483647) +# else + /* Otherwise, the value is derived from the toolchain configuration. + * to avoid putting explicit CPU checks in this header. */ +# ifndef __WCHAR_MAX__ +# error "__WCHAR_MAX__ is not defined. Check your toolchain!" +# endif + /* Clang does define __WCHAR_MAX__, but not __WCHAR_MIN__ */ +# ifndef __WCHAR_MIN__ +# if __WCHAR_MAX__ == 4294967295 +# define __WCHAR_MIN__ (0U) +# elif __WCHAR_MAX__ == 2147483647 +# define __WCHAR_MIN__ (-2147483647 - 1) +# else +# error "Invalid __WCHAR_MAX__ value. Check your toolchain!" +# endif +# endif /* !__WCHAR_MIN__ */ +# define WCHAR_MIN __WCHAR_MIN__ +# define WCHAR_MAX __WCHAR_MAX__ +# endif /* !_WCHAR_IS_ALWAYS_SIGNED */ + +#endif /* !WCHAR_MIN */ + +#endif /* _SYS__WCHAR_LIMITS_H */ |