types.h

Go to the documentation of this file.

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
 */

/*
 * This file is part of LibreOffice published API.
 */

#ifndef INCLUDED_SAL_TYPES_H
#define INCLUDED_SAL_TYPES_H

#include "sal/config.h"

#include <stddef.h>

#include "sal/macros.h"
#include "sal/typesizes.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef unsigned char sal_Bool;
#   define sal_False ((sal_Bool)0)
#   define sal_True  ((sal_Bool)1)

/* char is assumed to always be 1 byte long */
typedef signed char         sal_Int8;
typedef unsigned char       sal_uInt8;

#if SAL_TYPES_SIZEOFSHORT == 2
    typedef signed short      sal_Int16;
    typedef unsigned short    sal_uInt16;
#else
     #error "Could not find 16-bit type, add support for your architecture"
#endif

#if SAL_TYPES_SIZEOFLONG == 4
    typedef signed long       sal_Int32;
    typedef unsigned long     sal_uInt32;
    #define SAL_PRIdINT32 "ld"
    #define SAL_PRIuUINT32 "lu"
    #define SAL_PRIxUINT32 "lx"
    #define SAL_PRIXUINT32 "lX"
#elif SAL_TYPES_SIZEOFINT == 4
    typedef signed int        sal_Int32;
    typedef unsigned int      sal_uInt32;
    #define SAL_PRIdINT32 "d"
    #define SAL_PRIuUINT32 "u"
    #define SAL_PRIxUINT32 "x"
    #define SAL_PRIXUINT32 "X"
#else
     #error "Could not find 32-bit type, add support for your architecture"
#endif

#ifdef _MSC_VER
    typedef __int64                  sal_Int64;
    typedef unsigned __int64         sal_uInt64;

    /*  The following are macros that will add the 64 bit constant suffix. */
    #define SAL_CONST_INT64(x)       x##i64
    #define SAL_CONST_UINT64(x)      x##ui64

    #define SAL_PRIdINT64 "I64d"
    #define SAL_PRIuUINT64 "I64u"
    #define SAL_PRIxUINT64 "I64x"
    #define SAL_PRIXUINT64 "I64X"
#elif defined (__GNUC__)
    #if SAL_TYPES_SIZEOFLONG == 8
        typedef signed long int         sal_Int64;
        typedef unsigned long int       sal_uInt64;


        /*  The following are macros that will add the 64 bit constant suffix. */
        #define SAL_CONST_INT64(x)       x##l
        #define SAL_CONST_UINT64(x)      x##ul

        #define SAL_PRIdINT64 "ld"
        #define SAL_PRIuUINT64 "lu"
        #define SAL_PRIxUINT64 "lx"
        #define SAL_PRIXUINT64 "lX"
    #elif SAL_TYPES_SIZEOFLONGLONG == 8
        typedef signed long long    sal_Int64;
        typedef unsigned long long  sal_uInt64;

        /*  The following are macros that will add the 64 bit constant suffix. */
        #define SAL_CONST_INT64(x)       x##ll
        #define SAL_CONST_UINT64(x)      x##ull

        #define SAL_PRIdINT64 "lld"
        #define SAL_PRIuUINT64 "llu"
        #define SAL_PRIxUINT64 "llx"
        #define SAL_PRIXUINT64 "llX"
    #else
        #error "Could not find 64-bit type, add support for your architecture"
    #endif
#else
    #error "Please define the 64-bit types for your architecture/compiler in include/sal/types.h"
#endif

#if defined LIBO_INTERNAL_ONLY && defined __cplusplus
    #define SAL_UNICODE_NOTEQUAL_WCHAR_T
    typedef char16_t sal_Unicode;
#elif defined(_WIN32)
    typedef wchar_t sal_Unicode;
#else
    #define SAL_UNICODE_NOTEQUAL_WCHAR_T
    typedef sal_uInt16 sal_Unicode;
#endif

typedef void *                   sal_Handle;

/* sal_Size should currently be the native width of the platform */
#if SAL_TYPES_SIZEOFPOINTER == 4
    typedef sal_uInt32          sal_Size;
    typedef sal_Int32           sal_sSize;
#elif SAL_TYPES_SIZEOFPOINTER == 8
    typedef sal_uInt64          sal_Size;
    typedef sal_Int64           sal_sSize;
#else
    #error "Please make sure SAL_TYPES_SIZEOFPOINTER is defined for your architecture/compiler"
#endif

/* sal_PtrDiff holds the result of a pointer subtraction */
#if SAL_TYPES_SIZEOFPOINTER == 4
    typedef sal_Int32           sal_PtrDiff;
#elif SAL_TYPES_SIZEOFPOINTER == 8
    typedef sal_Int64           sal_PtrDiff;
#else
    #error "Please make sure SAL_TYPES_SIZEOFPOINTER is defined for your architecture/compiler"
#endif

/* printf-style conversion specification length modifiers for size_t and
   ptrdiff_t (most platforms support C99, MSC has its own extension) */
#if defined(_MSC_VER)
    #define SAL_PRI_SIZET "I"
    #define SAL_PRI_PTRDIFFT "I"
#else
    #define SAL_PRI_SIZET "z"
    #define SAL_PRI_PTRDIFFT "t"
#endif

/* sal_IntPtr, sal_uIntPtr are integer types designed to hold pointers so that any valid
 * pointer to void can be converted to this type and back to a pointer to void and the
 * result will compare to the original pointer */
#if SAL_TYPES_SIZEOFPOINTER == 4
    typedef sal_Int32           sal_IntPtr;
    typedef sal_uInt32          sal_uIntPtr;
    #define SAL_PRIdINTPTR SAL_PRIdINT32
    #define SAL_PRIuUINTPTR SAL_PRIuUINT32
    #define SAL_PRIxUINTPTR SAL_PRIxUINT32
    #define SAL_PRIXUINTPTR SAL_PRIXUINT32
#elif SAL_TYPES_SIZEOFPOINTER == 8
    typedef sal_Int64           sal_IntPtr;
    typedef sal_uInt64          sal_uIntPtr;
    #define SAL_PRIdINTPTR SAL_PRIdINT64
    #define SAL_PRIuUINTPTR SAL_PRIuUINT64
    #define SAL_PRIxUINTPTR SAL_PRIxUINT64
    #define SAL_PRIXUINTPTR SAL_PRIXUINT64
#else
    #error "Please make sure SAL_TYPES_SIZEOFPOINTER is defined for your architecture/compiler"
#endif

/* The following SAL_MIN_INTn defines codify the assumption that the signed
 * sal_Int types use two's complement representation.  Defining them as
 * "-0x7F... - 1" instead of as "-0x80..." prevents warnings about applying the
 * unary minus operator to unsigned quantities.
 */
#define SAL_MIN_INT8          ((sal_Int8)   (-0x7F - 1))
#define SAL_MAX_INT8          ((sal_Int8)   0x7F)
#define SAL_MAX_UINT8         ((sal_uInt8)  0xFF)
#define SAL_MIN_INT16         ((sal_Int16)  (-0x7FFF - 1))
#define SAL_MAX_INT16         ((sal_Int16)  0x7FFF)
#define SAL_MAX_UINT16        ((sal_uInt16) 0xFFFF)
#define SAL_MIN_INT32         ((sal_Int32)  (-0x7FFFFFFF - 1))
#define SAL_MAX_INT32         ((sal_Int32)  0x7FFFFFFF)
#define SAL_MAX_UINT32        ((sal_uInt32) 0xFFFFFFFF)
#define SAL_MIN_INT64         ((sal_Int64)  (SAL_CONST_INT64(-0x7FFFFFFFFFFFFFFF) - 1))
#define SAL_MAX_INT64         ((sal_Int64)  SAL_CONST_INT64(0x7FFFFFFFFFFFFFFF))
#define SAL_MAX_UINT64        ((sal_uInt64) SAL_CONST_UINT64(0xFFFFFFFFFFFFFFFF))

#if SAL_TYPES_SIZEOFPOINTER == 4
#define SAL_MAX_SSIZE       SAL_MAX_INT32
#define SAL_MAX_SIZE        SAL_MAX_UINT32
#elif SAL_TYPES_SIZEOFPOINTER == 8
#define SAL_MAX_SSIZE       SAL_MAX_INT64
#define SAL_MAX_SIZE        SAL_MAX_UINT64
#endif

#define SAL_MAX_ENUM 0x7fffffff

#if defined(_MSC_VER)
#   define SAL_DLLPUBLIC_EXPORT    __declspec(dllexport)
#   define SAL_JNI_EXPORT          __declspec(dllexport)
#   define SAL_DLLPUBLIC_IMPORT    __declspec(dllimport)
#   define SAL_DLLPRIVATE
#   define SAL_DLLPUBLIC_TEMPLATE
#   define SAL_DLLPUBLIC_RTTI
#   define SAL_CALL         __cdecl
#elif defined SAL_UNX
#   if defined(__GNUC__)
#     if defined(DISABLE_DYNLOADING)
#       define SAL_DLLPUBLIC_EXPORT  __attribute__ ((visibility("hidden")))
#       define SAL_JNI_EXPORT        __attribute__ ((visibility("default")))
#       define SAL_DLLPUBLIC_IMPORT  __attribute__ ((visibility("hidden")))
#       define SAL_DLLPRIVATE        __attribute__ ((visibility("hidden")))
#       define SAL_DLLPUBLIC_TEMPLATE __attribute__ ((visibility("hidden")))
#       define SAL_DLLPUBLIC_RTTI
#     else
#       define SAL_DLLPUBLIC_EXPORT  __attribute__ ((visibility("default")))
#       define SAL_JNI_EXPORT        __attribute__ ((visibility("default")))
#       define SAL_DLLPUBLIC_IMPORT  __attribute__ ((visibility("default")))
#       define SAL_DLLPRIVATE        __attribute__ ((visibility("hidden")))
#       define SAL_DLLPUBLIC_TEMPLATE __attribute__ ((visibility("default")))
#       if defined __clang__
#         if __has_attribute(type_visibility)
#           define SAL_DLLPUBLIC_RTTI  __attribute__ ((type_visibility("default")))
#         else
#           define SAL_DLLPUBLIC_RTTI  __attribute__ ((visibility("default")))
#         endif
#       else
#         define SAL_DLLPUBLIC_RTTI
#       endif
#     endif
#   else
#     define SAL_DLLPUBLIC_EXPORT
#     define SAL_JNI_EXPORT
#     define SAL_DLLPUBLIC_IMPORT
#     define SAL_DLLPRIVATE
#     define SAL_DLLPUBLIC_TEMPLATE
#     define SAL_DLLPUBLIC_RTTI
#   endif
#   define SAL_CALL
#else
#   error("unknown platform")
#endif

#if defined(__GNUC__)
#   if defined(DISABLE_DYNLOADING)
#      define SAL_EXCEPTION_DLLPUBLIC_EXPORT __attribute__((visibility("default")))
#    else
#      define SAL_EXCEPTION_DLLPUBLIC_EXPORT SAL_DLLPUBLIC_EXPORT
#    endif
#    define SAL_EXCEPTION_DLLPRIVATE SAL_DLLPRIVATE
#else
#    define SAL_EXCEPTION_DLLPUBLIC_EXPORT
#    define SAL_EXCEPTION_DLLPRIVATE
#endif

#if defined LIBO_INTERNAL_ONLY && defined __cplusplus
#define SAL_WARN_UNUSED_RESULT [[nodiscard]]
#elif (defined __GNUC__ \
     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))) \
    || defined __clang__
#   define SAL_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
#else
#   define SAL_WARN_UNUSED_RESULT
#endif

#ifdef _MSC_VER
#   define SAL_NO_VTABLE __declspec(novtable)
#else
#   define SAL_NO_VTABLE
#endif

#ifdef _WIN32
#   pragma pack(push, 8)
#endif

typedef struct _sal_Sequence
{
    sal_Int32           nRefCount;
    sal_Int32           nElements;
    char                elements[1];
} sal_Sequence;

#define SAL_SEQUENCE_HEADER_SIZE ((sal_Size) offsetof(sal_Sequence,elements))

#if defined( _WIN32)
#pragma pack(pop)
#endif

#ifdef __cplusplus
}
#endif /* __cplusplus */

#if defined __cplusplus
#if __cplusplus >= 201103L
#define SAL_THROW_EXTERN_C() noexcept
#else
#define SAL_THROW_EXTERN_C() throw ()
#endif
#else
#define SAL_THROW_EXTERN_C()
#endif

#ifdef __cplusplus

#if defined(LIBO_INTERNAL_ONLY) && defined(__COVERITY__)
#   define COVERITY_NOEXCEPT_FALSE noexcept(false)
#else
#   define COVERITY_NOEXCEPT_FALSE
#endif

enum __sal_NoAcquire
{
    SAL_NO_ACQUIRE
};

namespace com { namespace sun { namespace star { } } }

namespace css = ::com::sun::star;

#if defined LIBO_INTERNAL_ONLY
#define SAL_DELETED_FUNCTION = delete
#else
#define SAL_DELETED_FUNCTION
#endif

#if defined LIBO_INTERNAL_ONLY
#define SAL_OVERRIDE override
#else
#define SAL_OVERRIDE
#endif

#if defined LIBO_INTERNAL_ONLY
#define SAL_CONSTEXPR constexpr
#else
#define SAL_CONSTEXPR
#endif

#if __cplusplus >= 201103L
#define SAL_NOEXCEPT noexcept
#else
#define SAL_NOEXCEPT throw ()
#endif

#endif /* __cplusplus */

#ifdef __cplusplus

namespace sal {

template< typename T1, typename T2 > inline T1 static_int_cast(T2 n) {
    return static_cast< T1 >(n);
}

}

#else /* __cplusplus */

#define SAL_INT_CAST(type, expr) ((type) (expr))

#endif /* __cplusplus */

#if defined __GNUC__ || defined __clang__
#if defined LIBO_INTERNAL_ONLY
#    define SAL_DEPRECATED(message) __attribute__((deprecated(message)))
#else
#    define SAL_DEPRECATED(message) __attribute__((deprecated))
#endif
#elif defined(_MSC_VER)
#    define SAL_DEPRECATED(message) __declspec(deprecated(message))
#else
#    define SAL_DEPRECATED(message)
#endif

#ifdef LIBO_INTERNAL_ONLY
#    define SAL_DEPRECATED_INTERNAL(message)
#else
#    define SAL_DEPRECATED_INTERNAL(message) SAL_DEPRECATED(message)
#endif

#if defined LIBO_INTERNAL_ONLY && defined __GNUC__
#define SAL_WNODEPRECATED_DECLARATIONS_PUSH \
    _Pragma(SAL_STRINGIFY_ARG(GCC diagnostic push)) \
    _Pragma(SAL_STRINGIFY_ARG(GCC diagnostic ignored "-Wdeprecated-declarations"))
#define SAL_WNODEPRECATED_DECLARATIONS_POP \
    _Pragma(SAL_STRINGIFY_ARG(GCC diagnostic pop))
#else
#   define SAL_WNODEPRECATED_DECLARATIONS_PUSH
#   define SAL_WNODEPRECATED_DECLARATIONS_POP
#endif

#ifdef _MSC_VER
#define SAL_WNOUNREACHABLE_CODE_PUSH \
    __pragma(warning(push)) \
    __pragma(warning(disable:4702)) \
    __pragma(warning(disable:4722))
#define SAL_WNOUNREACHABLE_CODE_POP \
    __pragma(warning(pop))
#else
/* Add definitions for GCC and Clang if needed */
#define SAL_WNOUNREACHABLE_CODE_PUSH
#define SAL_WNOUNREACHABLE_CODE_POP
#endif

#if defined __cplusplus
#if defined __GNUC__ || defined __clang__
#define SAL_UNUSED_PARAMETER __attribute__ ((unused))
#else
#define SAL_UNUSED_PARAMETER
#endif
#endif

#if defined LIBO_INTERNAL_ONLY && (defined __GNUC__ || defined __clang__)
#define SAL_WARN_UNUSED __attribute__((warn_unused))
#else
#define SAL_WARN_UNUSED
#endif


#if defined __GNUC__ || defined __clang__
// Macro to try to catch and warn on assignments inside expr.
#    define SAL_DETAIL_BOOLEAN_EXPR(expr)   \
        __extension__ ({                    \
            int sal_boolean_var_;           \
            if (expr)                       \
               sal_boolean_var_ = 1;        \
            else                            \
               sal_boolean_var_ = 0;        \
            sal_boolean_var_;               \
        })

#    define SAL_LIKELY(expr) __builtin_expect(SAL_DETAIL_BOOLEAN_EXPR((expr)), 1)

#    define SAL_UNLIKELY(expr) __builtin_expect(SAL_DETAIL_BOOLEAN_EXPR((expr)), 0)

#    define SAL_HOT __attribute__((hot))

#    define SAL_COLD __attribute__((cold))
#else
#    define SAL_LIKELY(expr) (expr)
#    define SAL_UNLIKELY(expr) (expr)
#    define SAL_HOT
#    define SAL_COLD
#endif



#ifndef __has_attribute
#define __has_attribute(x) 0
#endif

#if defined LIBO_INTERNAL_ONLY && ((defined __GNUC__ && !defined __clang__) || (defined __clang__ && __has_attribute(returns_nonnull)))
#define SAL_RETURNS_NONNULL  __attribute__((returns_nonnull))
#else
#define SAL_RETURNS_NONNULL
#endif

#if defined LIBO_INTERNAL_ONLY
// An annotation mechanism used by some loplugins.  The id argument must be an ordinary string
// literal.  For Clang, this expands to a clang::annotate attribute with an annotation consisting of
// the concatenation of a "loplugin:" prefix and the given id suffix.  For non-Clang, this expands
// to nothing to avoid e.g. -Wattributes from GCC's -Wall.
#if defined __clang__
#define SAL_LOPLUGIN_ANNOTATE(id) [[clang::annotate("loplugin:" id)]]
#else
#define SAL_LOPLUGIN_ANNOTATE(id)
#endif
#endif

#endif // INCLUDED_SAL_TYPES_H

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */