Platform-independent integer types (draft 3)

git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@574 8092fc87-c524-0410-9efc-e669fe64eaf9
2003-01-22 19:55:16 +00:00
parent 76f9f1f65a
commit 35cc49d12c
1 changed files with 135 additions and 0 deletions
@@ -0,0 +1,135 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/* Data types used in the UQM port
+ * Draft 3
+ * Compiled from various sources
+ */
+
+#ifndef _TYPES_H
+#define _TYPES_H
+
+#if defined(__MACOS__)
+
+#	define UQM_INT16   short
+#	define UQM_INT32   long
+
+#elif defined (_WIN64) || defined(WIN64)
+
+#	error No Win64 support yet (see types.h)
+
+/* Add your OS support here */
+
+#else
+/* all other sane 32bit: WIN32, __MACOSX__, __BEOS__, __EMX__ */
+
+#	define UQM_INT16   short
+#	define UQM_INT32   int
+
+#endif
+
+/* Figure out how to support 64-bit datatypes */
+#if !defined(__STRICT_ANSI__)
+#if defined(__GNUC__) || defined(__MWERKS__) || defined(__SUNPRO_C)
+#	define UQM_INT64    long long
+#elif defined(_MSC_VER) || defined(__BORLANDC__)
+#	define UQM_INT64    __int64
+#endif
+#endif /* !__STRICT_ANSI__ */
+
+/* The 64-bit type isn't available on EPOC/Symbian OS */
+#ifdef __SYMBIAN32__
+#	undef HAVE_NATIVE_64
+#endif
+
+/* If it isn't char, what is it ?!*/
+typedef unsigned char      uint8;
+typedef signed char        sint8;
+
+typedef unsigned UQM_INT16 uint16;
+typedef signed UQM_INT16   sint16;
+
+typedef unsigned UQM_INT32 uint32;
+typedef signed UQM_INT32   sint32;
+
+#if defined(UQM_INT64)
+
+typedef unsigned UQM_INT64 uint64;
+typedef signed UQM_INT64   sint64;
+
+#undef UQM_INT64
+
+#else /* dont have UQM_INT64 */
+
+typedef struct
+{
+	uint32 hi;
+	uint32 lo;
+} uint64;
+typedef struct
+{
+	sint32 hi;
+	uint32 lo;
+} sint64;
+typedef struct
+{
+	int32  hi;
+	uint32 lo;
+} int64;
+
+#endif /* UQM_INT64 */
+
+#undef UQM_INT16
+#undef UQM_INT32
+
+/* Make sure the types really have the right sizes
+ * Adapted from SDL
+ * This will generate "negative subscript or subscript is too large"
+ * error during compile, if the actual size of a type is wrong
+ */
+#define UQM_COMPILE_TIME_ASSERT(name, x) \
+	typedef int UQM_dummy_##name## [(x) * 2 - 1]
+
+UQM_COMPILE_TIME_ASSERT(uint8, sizeof(uint8) == 1);
+UQM_COMPILE_TIME_ASSERT(uint16, sizeof(uint16) == 2);
+UQM_COMPILE_TIME_ASSERT(uint32, sizeof(uint32) == 4);
+UQM_COMPILE_TIME_ASSERT(uint64, sizeof(uint64) == 8);
+
+#undef UQM_COMPILE_TIME_ASSERT
+
+#undef SINT8_MIN
+#undef SINT8_MAX
+#undef SINT16_MIN
+#undef SINT16_MAX
+#undef SINT32_MIN
+#undef SINT32_MAX
+
+#undef UINT8_MAX
+#undef UINT16_MAX
+#undef UINT32_MAX
+
+#define SINT8_MIN  (-128)
+#define SINT8_MAX  127
+#define SINT16_MIN (-32767-1)
+#define SINT16_MAX 32767
+#define SINT32_MIN (-2147483647-1)
+#define SINT32_MAX 2147483647
+
+#define UINT8_MAX  0xff /* 255U */
+#define UINT16_MAX 0xffff /* 65535U */
+#define UINT32_MAX 0xffffffff /* 4294967295U */
+
+#endif /* _TYPES_H */