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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * IBM Corp.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+** File: jstypes.h
+** Description: Definitions of NSPR's basic types
+**
+** Prototypes and macros used to make up for deficiencies in ANSI environments
+** that we have found.
+**
+** Since we do not wrap <stdlib.h> and all the other standard headers, authors
+** of portable code will not know in general that they need these definitions.
+** Instead of requiring these authors to find the dependent uses in their code
+** and take the following steps only in those C files, we take steps once here
+** for all C files.
+**/
+
+#ifndef jstypes_h___
+#define jstypes_h___
+
+#include <stddef.h>
+
+/***********************************************************************
+** MACROS: JS_EXTERN_API
+** JS_EXPORT_API
+** DESCRIPTION:
+** These are only for externally visible routines and globals. For
+** internal routines, just use "extern" for type checking and that
+** will not export internal cross-file or forward-declared symbols.
+** Define a macro for declaring procedures return types. We use this to
+** deal with windoze specific type hackery for DLL definitions. Use
+** JS_EXTERN_API when the prototype for the method is declared. Use
+** JS_EXPORT_API for the implementation of the method.
+**
+** Example:
+** in dowhim.h
+** JS_EXTERN_API( void ) DoWhatIMean( void );
+** in dowhim.c
+** JS_EXPORT_API( void ) DoWhatIMean( void ) { return; }
+**
+**
+***********************************************************************/
+#ifdef WIN32
+
+/* These also work for __MWERKS__ */
+# define JS_EXTERN_API(__type) extern __declspec(dllexport) __type
+# define JS_EXPORT_API(__type) __declspec(dllexport) __type
+# define JS_EXTERN_DATA(__type) extern __declspec(dllexport) __type
+# define JS_EXPORT_DATA(__type) __declspec(dllexport) __type
+
+#elif defined(XP_OS2) && defined(__declspec)
+
+# define JS_EXTERN_API(__type) extern __declspec(dllexport) __type
+# define JS_EXPORT_API(__type) __declspec(dllexport) __type
+# define JS_EXTERN_DATA(__type) extern __declspec(dllexport) __type
+# define JS_EXPORT_DATA(__type) __declspec(dllexport) __type
+
+#else /* Unix */
+
+# ifdef HAVE_VISIBILITY_ATTRIBUTE
+# define JS_EXTERNAL_VIS __attribute__((visibility ("default")))
+# elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+# define JS_EXTERNAL_VIS __global
+# else
+# define JS_EXTERNAL_VIS
+# endif
+
+# define JS_EXTERN_API(__type) extern JS_EXTERNAL_VIS __type
+# define JS_EXPORT_API(__type) JS_EXTERNAL_VIS __type
+# define JS_EXTERN_DATA(__type) extern JS_EXTERNAL_VIS __type
+# define JS_EXPORT_DATA(__type) JS_EXTERNAL_VIS __type
+
+#endif
+
+#ifdef _WIN32
+# if defined(__MWERKS__) || defined(__GNUC__)
+# define JS_IMPORT_API(__x) __x
+# else
+# define JS_IMPORT_API(__x) __declspec(dllimport) __x
+# endif
+#elif defined(XP_OS2) && defined(__declspec)
+# define JS_IMPORT_API(__x) __declspec(dllimport) __x
+#else
+# define JS_IMPORT_API(__x) JS_EXPORT_API (__x)
+#endif
+
+#if defined(_WIN32) && !defined(__MWERKS__)
+# define JS_IMPORT_DATA(__x) __declspec(dllimport) __x
+#elif defined(XP_OS2) && defined(__declspec)
+# define JS_IMPORT_DATA(__x) __declspec(dllimport) __x
+#else
+# define JS_IMPORT_DATA(__x) JS_EXPORT_DATA (__x)
+#endif
+
+/*
+ * The linkage of JS API functions differs depending on whether the file is
+ * used within the JS library or not. Any source file within the JS
+ * interpreter should define EXPORT_JS_API whereas any client of the library
+ * should not. STATIC_JS_API is used to build JS as a static library.
+ */
+#if defined(STATIC_JS_API)
+
+# define JS_PUBLIC_API(t) t
+# define JS_PUBLIC_DATA(t) t
+
+#elif defined(EXPORT_JS_API)
+
+# define JS_PUBLIC_API(t) JS_EXPORT_API(t)
+# define JS_PUBLIC_DATA(t) JS_EXPORT_DATA(t)
+
+#else
+
+# define JS_PUBLIC_API(t) JS_IMPORT_API(t)
+# define JS_PUBLIC_DATA(t) JS_IMPORT_DATA(t)
+
+#endif
+
+#define JS_FRIEND_API(t) JS_PUBLIC_API(t)
+#define JS_FRIEND_DATA(t) JS_PUBLIC_DATA(t)
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+#define JS_FASTCALL __fastcall
+#elif defined(__GNUC__) && defined(__i386__) && \
+ ((__GNUC__ >= 4) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#define JS_FASTCALL __attribute__((fastcall))
+#else
+#define JS_FASTCALL
+#define JS_NO_FASTCALL
+#endif
+
+#ifndef JS_INLINE
+# if defined __cplusplus
+# define JS_INLINE inline
+# elif defined _MSC_VER
+# define JS_INLINE __inline
+# elif defined __GNUC__
+# define JS_INLINE __inline__
+# else
+# define JS_INLINE inline
+# endif
+#endif
+
+#ifndef JS_ALWAYS_INLINE
+# if defined DEBUG
+# define JS_ALWAYS_INLINE JS_INLINE
+# elif defined _MSC_VER
+# define JS_ALWAYS_INLINE __forceinline
+# elif defined __GNUC__
+# define JS_ALWAYS_INLINE __attribute__((always_inline))
+# else
+# define JS_ALWAYS_INLINE JS_INLINE
+# endif
+#endif
+
+/***********************************************************************
+** MACROS: JS_BEGIN_MACRO
+** JS_END_MACRO
+** DESCRIPTION:
+** Macro body brackets so that macros with compound statement definitions
+** behave syntactically more like functions when called.
+***********************************************************************/
+#define JS_BEGIN_MACRO do {
+
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+# define JS_END_MACRO \
+ } __pragma(warning(push)) __pragma(warning(disable:4127)) \
+ while (0) __pragma(warning(pop))
+#else
+# define JS_END_MACRO } while (0)
+#endif
+
+/***********************************************************************
+** MACROS: JS_BEGIN_EXTERN_C
+** JS_END_EXTERN_C
+** DESCRIPTION:
+** Macro shorthands for conditional C++ extern block delimiters.
+***********************************************************************/
+#ifdef __cplusplus
+
+# define JS_BEGIN_EXTERN_C extern "C" {
+# define JS_END_EXTERN_C }
+
+#else
+
+# define JS_BEGIN_EXTERN_C
+# define JS_END_EXTERN_C
+
+#endif
+
+/***********************************************************************
+** MACROS: JS_BIT
+** JS_BITMASK
+** DESCRIPTION:
+** Bit masking macros. XXX n must be <= 31 to be portable
+***********************************************************************/
+#define JS_BIT(n) ((JSUint32)1 << (n))
+#define JS_BITMASK(n) (JS_BIT(n) - 1)
+
+/***********************************************************************
+** MACROS: JS_PTR_TO_INT32
+** JS_PTR_TO_UINT32
+** JS_INT32_TO_PTR
+** JS_UINT32_TO_PTR
+** DESCRIPTION:
+** Integer to pointer and pointer to integer conversion macros.
+***********************************************************************/
+#define JS_PTR_TO_INT32(x) ((jsint)((char *)(x) - (char *)0))
+#define JS_PTR_TO_UINT32(x) ((jsuint)((char *)(x) - (char *)0))
+#define JS_INT32_TO_PTR(x) ((void *)((char *)0 + (jsint)(x)))
+#define JS_UINT32_TO_PTR(x) ((void *)((char *)0 + (jsuint)(x)))
+
+/***********************************************************************
+** MACROS: JS_HOWMANY
+** JS_ROUNDUP
+** JS_MIN
+** JS_MAX
+** DESCRIPTION:
+** Commonly used macros for operations on compatible types.
+***********************************************************************/
+#define JS_HOWMANY(x,y) (((x)+(y)-1)/(y))
+#define JS_ROUNDUP(x,y) (JS_HOWMANY(x,y)*(y))
+#define JS_MIN(x,y) ((x)<(y)?(x):(y))
+#define JS_MAX(x,y) ((x)>(y)?(x):(y))
+
+#if (defined(XP_WIN) && !defined(CROSS_COMPILE)) || defined (WINCE)
+# include "jscpucfg.h" /* Use standard Mac or Windows configuration */
+#elif defined(XP_UNIX) || defined(XP_BEOS) || defined(XP_OS2) || defined(CROSS_COMPILE)
+# include "jsautocfg.h" /* Use auto-detected configuration */
+#else
+# error "Must define one of XP_BEOS, XP_OS2, XP_WIN or XP_UNIX"
+#endif
+
+JS_BEGIN_EXTERN_C
+
+/************************************************************************
+** TYPES: JSUint8
+** JSInt8
+** DESCRIPTION:
+** The int8 types are known to be 8 bits each. There is no type that
+** is equivalent to a plain "char".
+************************************************************************/
+#if JS_BYTES_PER_BYTE == 1
+typedef unsigned char JSUint8;
+typedef signed char JSInt8;
+#else
+# error No suitable type for JSInt8/JSUint8
+#endif
+
+/************************************************************************
+** TYPES: JSUint16
+** JSInt16
+** DESCRIPTION:
+** The int16 types are known to be 16 bits each.
+************************************************************************/
+#if JS_BYTES_PER_SHORT == 2
+typedef unsigned short JSUint16;
+typedef short JSInt16;
+#else
+# error No suitable type for JSInt16/JSUint16
+#endif
+
+/************************************************************************
+** TYPES: JSUint32
+** JSInt32
+** DESCRIPTION:
+** The int32 types are known to be 32 bits each.
+************************************************************************/
+#if JS_BYTES_PER_INT == 4
+typedef unsigned int JSUint32;
+typedef int JSInt32;
+# define JS_INT32(x) x
+# define JS_UINT32(x) x ## U
+#elif JS_BYTES_PER_LONG == 4
+typedef unsigned long JSUint32;
+typedef long JSInt32;
+# define JS_INT32(x) x ## L
+# define JS_UINT32(x) x ## UL
+#else
+# error No suitable type for JSInt32/JSUint32
+#endif
+
+/************************************************************************
+** TYPES: JSUint64
+** JSInt64
+** DESCRIPTION:
+** The int64 types are known to be 64 bits each. Care must be used when
+** declaring variables of type JSUint64 or JSInt64. Different hardware
+** architectures and even different compilers have varying support for
+** 64 bit values. The only guaranteed portability requires the use of
+** the JSLL_ macros (see jslong.h).
+************************************************************************/
+#ifdef JS_HAVE_LONG_LONG
+
+# if JS_BYTES_PER_LONG == 8
+typedef long JSInt64;
+typedef unsigned long JSUint64;
+# elif defined(WIN16)
+typedef __int64 JSInt64;
+typedef unsigned __int64 JSUint64;
+# elif defined(WIN32) && !defined(__GNUC__)
+typedef __int64 JSInt64;
+typedef unsigned __int64 JSUint64;
+# else
+typedef long long JSInt64;
+typedef unsigned long long JSUint64;
+# endif /* JS_BYTES_PER_LONG == 8 */
+
+#else /* !JS_HAVE_LONG_LONG */
+
+typedef struct {
+# ifdef IS_LITTLE_ENDIAN
+ JSUint32 lo, hi;
+# else
+ JSUint32 hi, lo;
+#endif
+} JSInt64;
+typedef JSInt64 JSUint64;
+
+#endif /* !JS_HAVE_LONG_LONG */
+
+/************************************************************************
+** TYPES: JSUintn
+** JSIntn
+** DESCRIPTION:
+** The JSIntn types are most appropriate for automatic variables. They are
+** guaranteed to be at least 16 bits, though various architectures may
+** define them to be wider (e.g., 32 or even 64 bits). These types are
+** never valid for fields of a structure.
+************************************************************************/
+#if JS_BYTES_PER_INT >= 2
+typedef int JSIntn;
+typedef unsigned int JSUintn;
+#else
+# error 'sizeof(int)' not sufficient for platform use
+#endif
+
+/************************************************************************
+** TYPES: JSFloat64
+** DESCRIPTION:
+** NSPR's floating point type is always 64 bits.
+************************************************************************/
+typedef double JSFloat64;
+
+/************************************************************************
+** TYPES: JSSize
+** DESCRIPTION:
+** A type for representing the size of objects.
+************************************************************************/
+typedef size_t JSSize;
+
+/************************************************************************
+** TYPES: JSPtrDiff
+** DESCRIPTION:
+** A type for pointer difference. Variables of this type are suitable
+** for storing a pointer or pointer sutraction.
+************************************************************************/
+typedef ptrdiff_t JSPtrdiff;
+
+/************************************************************************
+** TYPES: JSUptrdiff
+** DESCRIPTION:
+** A type for pointer difference. Variables of this type are suitable
+** for storing a pointer or pointer sutraction.
+************************************************************************/
+#if JS_BYTES_PER_WORD == 8 && JS_BYTES_PER_LONG != 8
+typedef JSUint64 JSUptrdiff;
+#else
+typedef unsigned long JSUptrdiff;
+#endif
+
+/************************************************************************
+** TYPES: JSBool
+** DESCRIPTION:
+** Use JSBool for variables and parameter types. Use JS_FALSE and JS_TRUE
+** for clarity of target type in assignments and actual arguments. Use
+** 'if (bool)', 'while (!bool)', '(bool) ? x : y' etc., to test booleans
+** just as you would C int-valued conditions.
+************************************************************************/
+typedef JSIntn JSBool;
+#define JS_TRUE (JSIntn)1
+#define JS_FALSE (JSIntn)0
+
+/************************************************************************
+** TYPES: JSPackedBool
+** DESCRIPTION:
+** Use JSPackedBool within structs where bitfields are not desireable
+** but minimum and consistent overhead matters.
+************************************************************************/
+typedef JSUint8 JSPackedBool;
+
+/*
+** A JSWord is an integer that is the same size as a void*
+*/
+#if JS_BYTES_PER_WORD == 8 && JS_BYTES_PER_LONG != 8
+typedef JSInt64 JSWord;
+typedef JSUint64 JSUword;
+#else
+typedef long JSWord;
+typedef unsigned long JSUword;
+#endif
+
+#include "jsotypes.h"
+
+/***********************************************************************
+** MACROS: JS_LIKELY
+** JS_UNLIKELY
+** DESCRIPTION:
+** These macros allow you to give a hint to the compiler about branch
+** probability so that it can better optimize. Use them like this:
+**
+** if (JS_LIKELY(v == 1)) {
+** ... expected code path ...
+** }
+**
+** if (JS_UNLIKELY(v == 0)) {
+** ... non-expected code path ...
+** }
+**
+***********************************************************************/
+#if defined(__GNUC__) && (__GNUC__ > 2)
+
+# define JS_LIKELY(x) (__builtin_expect((x), 1))
+# define JS_UNLIKELY(x) (__builtin_expect((x), 0))
+
+#else
+
+# define JS_LIKELY(x) (x)
+# define JS_UNLIKELY(x) (x)
+
+#endif
+
+/***********************************************************************
+** MACROS: JS_ARRAY_LENGTH
+** JS_ARRAY_END
+** DESCRIPTION:
+** Macros to get the number of elements and the pointer to one past the
+** last element of a C array. Use them like this:
+**
+** jschar buf[10], *s;
+** JSString *str;
+** ...
+** for (s = buf; s != JS_ARRAY_END(buf); ++s) *s = ...;
+** ...
+** str = JS_NewStringCopyN(cx, buf, JS_ARRAY_LENGTH(buf));
+** ...
+**
+***********************************************************************/
+
+#define JS_ARRAY_LENGTH(array) (sizeof (array) / sizeof (array)[0])
+#define JS_ARRAY_END(array) ((array) + JS_ARRAY_LENGTH(array))
+
+JS_END_EXTERN_C
+
+#endif /* jstypes_h___ */
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