/*
******************************************************************************
*
-* Copyright (C) 1997-2012, International Business Machines
+* Copyright (C) 1997-2013, International Business Machines
* Corporation and others. All Rights Reserved.
*
******************************************************************************
* and/or from other macros that are predefined by the compiler
* or defined in standard (POSIX or platform or compiler) headers.
*
- * As a temporary workaround, you can add an explicit #define for some macros
+ * As a temporary workaround, you can add an explicit <code>#define</code> for some macros
* before it is first tested, or add an equivalent -D macro definition
* to the compiler's command line.
*
* <code>-x c++</code> is for C++.)
*/
+/**
+ * Define some things so that they can be documented.
+ * @internal
+ */
+#ifdef U_IN_DOXYGEN
+/*
+ * Problem: "platform.h:335: warning: documentation for unknown define U_HAVE_STD_STRING found." means that U_HAVE_STD_STRING is not documented.
+ * Solution: #define any defines for non @internal API here, so that they are visible in the docs. If you just set PREDEFINED in Doxyfile.in, they won't be documented.
+ */
+
+/* None for now. */
+#endif
+
/**
* \def U_PLATFORM
* The U_PLATFORM macro defines the platform we're on.
# include <android/api-level.h>
#elif defined(linux) || defined(__linux__) || defined(__linux)
# define U_PLATFORM U_PF_LINUX
-#elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#elif defined(__APPLE__) && defined(__MACH__)
+# include <TargetConditionals.h>
+# if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE /* variant of TARGET_OS_MAC */
+# define U_PLATFORM U_PF_IPHONE
+# else
+# define U_PLATFORM U_PF_DARWIN
+# endif
+#elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__MirBSD__)
# define U_PLATFORM U_PF_BSD
#elif defined(sun) || defined(__sun)
/* Check defined(__SVR4) || defined(__svr4__) to distinguish Solaris from SunOS? */
# define U_PLATFORM U_PF_HPUX
#elif defined(sgi) || defined(__sgi)
# define U_PLATFORM U_PF_IRIX
-#elif defined(__APPLE__) && defined(__MACH__)
-# include <TargetConditionals.h>
-# if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE /* variant of TARGET_OS_MAC */
-# define U_PLATFORM U_PF_IPHONE
-# else
-# define U_PLATFORM U_PF_DARWIN
-# endif
#elif defined(macintosh)
# define U_PLATFORM U_PF_CLASSIC_MACOS
#elif defined(__QNX__) || defined(__QNXNTO__)
#ifdef U_HAVE_STDINT_H
/* Use the predefined value. */
#elif U_PLATFORM_USES_ONLY_WIN32_API
-# if defined(__BORLANDC__) || (defined(_MSC_VER) && _MSC_VER>=1600)
+# if defined(__BORLANDC__) || U_PLATFORM == U_PF_MINGW || (defined(_MSC_VER) && _MSC_VER>=1600)
/* Windows Visual Studio 9 and below do not have stdint.h & inttypes.h, but VS 2010 adds them. */
# define U_HAVE_STDINT_H 1
# else
#elif U_PLATFORM == U_PF_SOLARIS
/* Solaris has inttypes.h but not stdint.h. */
# define U_HAVE_STDINT_H 0
+#elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
+ /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
+# define U_HAVE_STDINT_H 0
#else
# define U_HAVE_STDINT_H 1
#endif
#elif U_PLATFORM == U_PF_SOLARIS
/* Solaris has inttypes.h but not stdint.h. */
# define U_HAVE_INTTYPES_H 1
+#elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
+ /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
+# define U_HAVE_INTTYPES_H 1
#else
/* Most platforms have both inttypes.h and stdint.h, or neither. */
# define U_HAVE_INTTYPES_H U_HAVE_STDINT_H
*/
#ifdef U_HAVE_STD_STRING
/* Use the predefined value. */
-#elif U_PLATFORM == U_PF_ANDROID
-# define U_HAVE_STD_STRING 0
#else
# define U_HAVE_STD_STRING 1
#endif
/** @{ Compiler and environment features */
/*===========================================================================*/
+/**
+ * \def U_GCC_MAJOR_MINOR
+ * Indicates whether the compiler is gcc (test for != 0),
+ * and if so, contains its major (times 100) and minor version numbers.
+ * If the compiler is not gcc, then U_GCC_MAJOR_MINOR == 0.
+ *
+ * For example, for testing for whether we have gcc, and whether it's 4.6 or higher,
+ * use "#if U_GCC_MAJOR_MINOR >= 406".
+ * @internal
+ */
+#ifdef __GNUC__
+# define U_GCC_MAJOR_MINOR (__GNUC__ * 100 + __GNUC_MINOR__)
+#else
+# define U_GCC_MAJOR_MINOR 0
+#endif
+
/**
* \def U_IS_BIG_ENDIAN
* Determines the endianness of the platform.
# define U_IS_BIG_ENDIAN 1
#elif defined(__LITTLE_ENDIAN__) || defined(_LITTLE_ENDIAN)
# define U_IS_BIG_ENDIAN 0
-#elif U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_OS400
+#elif U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_OS400 || defined(__s390__) || defined(__s390x__)
/* These platforms do not appear to predefine any endianness macros. */
# define U_IS_BIG_ENDIAN 1
+#elif defined(_PA_RISC1_0) || defined(_PA_RISC1_1) || defined(_PA_RISC2_0)
+ /* HPPA do not appear to predefine any endianness macros. */
+# define U_IS_BIG_ENDIAN 1
+#elif defined(sparc) || defined(__sparc) || defined(__sparc__)
+ /* Some sparc based systems (e.g. Linux) do not predefine any endianness macros. */
+# define U_IS_BIG_ENDIAN 1
#else
# define U_IS_BIG_ENDIAN 0
#endif
# define U_HAVE_DEBUG_LOCATION_NEW 0
#endif
+/* Compatibility with non clang compilers */
+#ifndef __has_attribute
+# define __has_attribute(x) 0
+#endif
+
+/**
+ * \def U_MALLOC_ATTR
+ * Attribute to mark functions as malloc-like
+ * @internal
+ */
+#if defined(__GNUC__) && __GNUC__>=3
+# define U_MALLOC_ATTR __attribute__ ((__malloc__))
+#else
+# define U_MALLOC_ATTR
+#endif
+
+/**
+ * \def U_ALLOC_SIZE_ATTR
+ * Attribute to specify the size of the allocated buffer for malloc-like functions
+ * @internal
+ */
+#if (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || __has_attribute(alloc_size)
+# define U_ALLOC_SIZE_ATTR(X) __attribute__ ((alloc_size(X)))
+# define U_ALLOC_SIZE_ATTR2(X,Y) __attribute__ ((alloc_size(X,Y)))
+#else
+# define U_ALLOC_SIZE_ATTR(X)
+# define U_ALLOC_SIZE_ATTR2(X,Y)
+#endif
+
/** @} */
/*===========================================================================*/
* does not support u"abc" string literals.
* gcc 4.4 defines the __CHAR16_TYPE__ macro to a usable type but
* does not support u"abc" string literals.
+ * C++11 and C11 require support for UTF-16 literals
*/
-# define U_HAVE_CHAR16_T 0
+# if (defined(__cplusplus) && __cplusplus >= 201103L) || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L)
+# define U_HAVE_CHAR16_T 1
+# else
+# define U_HAVE_CHAR16_T 0
+# endif
#endif
/**
*/
#ifdef U_DECLARE_UTF16
/* Use the predefined value. */
-#elif (defined(__xlC__) && defined(__IBM_UTF_LITERAL) && U_SIZEOF_WCHAR_T != 2) \
+#elif U_HAVE_CHAR16_T \
+ || (defined(__xlC__) && defined(__IBM_UTF_LITERAL) && U_SIZEOF_WCHAR_T != 2) \
|| (defined(__HP_aCC) && __HP_aCC >= 035000) \
- || (defined(__HP_cc) && __HP_cc >= 111106) \
- || U_HAVE_CHAR16_T
+ || (defined(__HP_cc) && __HP_cc >= 111106)
# define U_DECLARE_UTF16(string) u ## string
-#elif (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x550)
-/* || (defined(__SUNPRO_C) && __SUNPRO_C >= 0x580) */
-/* Sun's C compiler has issues with this notation, and it's unreliable. */
-# define U_DECLARE_UTF16(string) U ## string
#elif U_SIZEOF_WCHAR_T == 2 \
&& (U_CHARSET_FAMILY == 0 || (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400 && defined(__UCS2__)))
# define U_DECLARE_UTF16(string) L ## string
projects / apple / icu.git / blobdiff