//===-- include/Support/DataTypes.h - Define fixed size types ---*- C++ -*-===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
//===----------------------------------------------------------------------===//
//
// This file contains definitions to figure out the size of _HOST_ data types.
// This file is important because different host OS's define different macros,
// which makes portability tough. This file exports the following definitions:
//
-// int64_t : is a typedef for the signed 64 bit system type
-// uint64_t : is a typedef for the unsigned 64 bit system type
-// INT64_MAX : is a #define specifying the max value for int64_t's
+// [u]int(32|64)_t : typedefs for signed and unsigned 32/64 bit system types
+// [U]INT(8|16|32|64)_(MIN|MAX) : Constants for the min and max values.
//
// No library is required when using these functinons.
//
#ifndef SUPPORT_DATATYPES_H
#define SUPPORT_DATATYPES_H
+#undef HAVE_SYS_TYPES_H
+#undef HAVE_INTTYPES_H
+#undef HAVE_STDINT_H
+#undef HAVE_UINT64_T
+#undef HAVE_U_INT64_T
+
+#ifndef _MSC_VER
+
// Note that this header's correct operation depends on __STDC_LIMIT_MACROS
// being defined. We would define it here, but in order to prevent Bad Things
// happening when system headers or C++ STL headers include stdint.h before
# error "Must #define __STDC_LIMIT_MACROS before #including Support/DataTypes.h"
#endif
-#ifndef _MSC_VER
// Note that <inttypes.h> includes <stdint.h>, if this is a C99 system.
-@INCLUDE_INTTYPES_H@
-@INCLUDE_SYS_TYPES_H@
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+
+#ifdef __cplusplus
+#include <cmath>
#else
+#include <math.h>
+#endif
+
+#ifdef _AIX
+#include "llvm/Support/AIXDataTypesFix.h"
+#endif
+
+// Handle incorrect definition of uint64_t as u_int64_t
+#ifndef HAVE_UINT64_T
+#ifdef HAVE_U_INT64_T
+typedef u_int64_t uint64_t;
+#else
+# error "Don't have a definition for uint64_t on this platform"
+#endif
+#endif
+
+#ifdef _OpenBSD_
+#define INT8_MAX 127
+#define INT8_MIN -128
+#define UINT8_MAX 255
+#define INT16_MAX 32767
+#define INT16_MIN -32768
+#define UINT16_MAX 65535
+#define INT32_MAX 2147483647
+#define INT32_MIN -2147483648
+#define UINT32_MAX 4294967295U
+#endif
+
+#else /* _MSC_VER */
// Visual C++ doesn't provide standard integer headers, but it does provide
// built-in data types.
+#include <stdlib.h>
+#include <stddef.h>
+#include <sys/types.h>
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
-typedef int int32_t;
-typedef unsigned uint32_t;
-#endif
+typedef signed int int32_t;
+typedef unsigned int uint32_t;
+typedef short int16_t;
+typedef unsigned short uint16_t;
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef signed int ssize_t;
+#define INT8_MAX 127
+#define INT8_MIN -128
+#define UINT8_MAX 255
+#define INT16_MAX 32767
+#define INT16_MIN -32768
+#define UINT16_MAX 65535
+#define INT32_MAX 2147483647
+#define INT32_MIN -2147483648
+#define UINT32_MAX 4294967295U
+#endif /* _MSC_VER */
+/* Set defaults for constants which we cannot find. */
#if !defined(INT64_MAX)
-/* We couldn't determine INT64_MAX; default it. */
# define INT64_MAX 9223372036854775807LL
#endif
+#if !defined(INT64_MIN)
+# define INT64_MIN ((-INT64_MAX)-1)
+#endif
#if !defined(UINT64_MAX)
# define UINT64_MAX 0xffffffffffffffffULL
#endif
+#if __GNUC__ > 3
+#define END_WITH_NULL __attribute__((sentinel))
+#else
+#define END_WITH_NULL
+#endif
+
+#ifndef HUGE_VALF
+#define HUGE_VALF (float)HUGE_VAL
+#endif
+
#endif /* SUPPORT_DATATYPES_H */
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