LibreOffice
LibreOffice 7.0 SDK C/C++ API Reference
types.h
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3  * This file is part of the LibreOffice project.
4  *
5  * This Source Code Form is subject to the terms of the Mozilla Public
6  * License, v. 2.0. If a copy of the MPL was not distributed with this
7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8  *
9  * This file incorporates work covered by the following license notice:
10  *
11  * Licensed to the Apache Software Foundation (ASF) under one or more
12  * contributor license agreements. See the NOTICE file distributed
13  * with this work for additional information regarding copyright
14  * ownership. The ASF licenses this file to you under the Apache
15  * License, Version 2.0 (the "License"); you may not use this file
16  * except in compliance with the License. You may obtain a copy of
17  * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18  */
19 
20 #ifndef INCLUDED_SAL_TYPES_H
21 #define INCLUDED_SAL_TYPES_H
22 
23 #include "sal/config.h"
24 
25 #include <stddef.h>
26 
27 #include "sal/macros.h"
28 #include "sal/typesizes.h"
29 
30 #ifdef __cplusplus
31 extern "C" {
32 #endif
33 
34 typedef unsigned char sal_Bool;
35 # define sal_False ((sal_Bool)0)
36 # define sal_True ((sal_Bool)1)
37 
38 /* char is assumed to always be 1 byte long */
39 typedef signed char sal_Int8;
40 typedef unsigned char sal_uInt8;
41 
42 #if SAL_TYPES_SIZEOFSHORT == 2
43  typedef signed short sal_Int16;
44  typedef unsigned short sal_uInt16;
45 #else
46  #error "Could not find 16-bit type, add support for your architecture"
47 #endif
48 
49 #if SAL_TYPES_SIZEOFLONG == 4
50  typedef signed long sal_Int32;
51  typedef unsigned long sal_uInt32;
52  #define SAL_PRIdINT32 "ld"
53  #define SAL_PRIuUINT32 "lu"
54  #define SAL_PRIxUINT32 "lx"
55  #define SAL_PRIXUINT32 "lX"
56 #elif SAL_TYPES_SIZEOFINT == 4
57  typedef signed int sal_Int32;
58  typedef unsigned int sal_uInt32;
59  #define SAL_PRIdINT32 "d"
60  #define SAL_PRIuUINT32 "u"
61  #define SAL_PRIxUINT32 "x"
62  #define SAL_PRIXUINT32 "X"
63 #else
64  #error "Could not find 32-bit type, add support for your architecture"
65 #endif
66 
67 #ifdef _MSC_VER
68  typedef __int64 sal_Int64;
69  typedef unsigned __int64 sal_uInt64;
70 
71  /* The following are macros that will add the 64 bit constant suffix. */
72  #define SAL_CONST_INT64(x) x##i64
73  #define SAL_CONST_UINT64(x) x##ui64
74 
75  #define SAL_PRIdINT64 "I64d"
76  #define SAL_PRIuUINT64 "I64u"
77  #define SAL_PRIxUINT64 "I64x"
78  #define SAL_PRIXUINT64 "I64X"
79 #elif defined (__GNUC__)
80  #if SAL_TYPES_SIZEOFLONG == 8
81  typedef signed long int sal_Int64;
82  typedef unsigned long int sal_uInt64;
83 
84 
85  /* The following are macros that will add the 64 bit constant suffix. */
86  #define SAL_CONST_INT64(x) x##l
87  #define SAL_CONST_UINT64(x) x##ul
88 
89  #define SAL_PRIdINT64 "ld"
90  #define SAL_PRIuUINT64 "lu"
91  #define SAL_PRIxUINT64 "lx"
92  #define SAL_PRIXUINT64 "lX"
93  #elif SAL_TYPES_SIZEOFLONGLONG == 8
94  typedef signed long long sal_Int64;
95  typedef unsigned long long sal_uInt64;
96 
97  /* The following are macros that will add the 64 bit constant suffix. */
98  #define SAL_CONST_INT64(x) x##ll
99  #define SAL_CONST_UINT64(x) x##ull
100 
101  #define SAL_PRIdINT64 "lld"
102  #define SAL_PRIuUINT64 "llu"
103  #define SAL_PRIxUINT64 "llx"
104  #define SAL_PRIXUINT64 "llX"
105  #else
106  #error "Could not find 64-bit type, add support for your architecture"
107  #endif
108 #else
109  #error "Please define the 64-bit types for your architecture/compiler in include/sal/types.h"
110 #endif
111 
116 typedef char sal_Char;
117 
122 typedef signed char sal_sChar;
123 
128 typedef unsigned char sal_uChar;
129 
130 #if defined LIBO_INTERNAL_ONLY && defined __cplusplus
131  #define SAL_UNICODE_NOTEQUAL_WCHAR_T
132  typedef char16_t sal_Unicode;
133 #elif defined(_WIN32)
134  typedef wchar_t sal_Unicode;
135 #else
136  #define SAL_UNICODE_NOTEQUAL_WCHAR_T
137  typedef sal_uInt16 sal_Unicode;
138 #endif
139 
140 typedef void * sal_Handle;
141 
142 /* sal_Size should currently be the native width of the platform */
143 #if SAL_TYPES_SIZEOFPOINTER == 4
144  typedef sal_uInt32 sal_Size;
145  typedef sal_Int32 sal_sSize;
146 #elif SAL_TYPES_SIZEOFPOINTER == 8
147  typedef sal_uInt64 sal_Size;
148  typedef sal_Int64 sal_sSize;
149 #else
150  #error "Please make sure SAL_TYPES_SIZEOFPOINTER is defined for your architecture/compiler"
151 #endif
152 
153 /* sal_PtrDiff holds the result of a pointer subtraction */
154 #if SAL_TYPES_SIZEOFPOINTER == 4
155  typedef sal_Int32 sal_PtrDiff;
156 #elif SAL_TYPES_SIZEOFPOINTER == 8
157  typedef sal_Int64 sal_PtrDiff;
158 #else
159  #error "Please make sure SAL_TYPES_SIZEOFPOINTER is defined for your architecture/compiler"
160 #endif
161 
162 /* printf-style conversion specification length modifiers for size_t and
163  ptrdiff_t (most platforms support C99, MSC has its own extension) */
164 #if defined(_MSC_VER)
165  #define SAL_PRI_SIZET "I"
166  #define SAL_PRI_PTRDIFFT "I"
167 #else
168  #define SAL_PRI_SIZET "z"
169  #define SAL_PRI_PTRDIFFT "t"
170 #endif
171 
172 /* sal_IntPtr, sal_uIntPtr are integer types designed to hold pointers so that any valid
173  * pointer to void can be converted to this type and back to a pointer to void and the
174  * result will compare to the original pointer */
175 #if SAL_TYPES_SIZEOFPOINTER == 4
176  typedef sal_Int32 sal_IntPtr;
177  typedef sal_uInt32 sal_uIntPtr;
178  #define SAL_PRIdINTPTR SAL_PRIdINT32
179  #define SAL_PRIuUINTPTR SAL_PRIuUINT32
180  #define SAL_PRIxUINTPTR SAL_PRIxUINT32
181  #define SAL_PRIXUINTPTR SAL_PRIXUINT32
182 #elif SAL_TYPES_SIZEOFPOINTER == 8
183  typedef sal_Int64 sal_IntPtr;
184  typedef sal_uInt64 sal_uIntPtr;
185  #define SAL_PRIdINTPTR SAL_PRIdINT64
186  #define SAL_PRIuUINTPTR SAL_PRIuUINT64
187  #define SAL_PRIxUINTPTR SAL_PRIxUINT64
188  #define SAL_PRIXUINTPTR SAL_PRIXUINT64
189 #else
190  #error "Please make sure SAL_TYPES_SIZEOFPOINTER is defined for your architecture/compiler"
191 #endif
192 
193 /* The following SAL_MIN_INTn defines codify the assumption that the signed
194  * sal_Int types use two's complement representation. Defining them as
195  * "-0x7F... - 1" instead of as "-0x80..." prevents warnings about applying the
196  * unary minus operator to unsigned quantities.
197  */
198 #define SAL_MIN_INT8 ((sal_Int8) (-0x7F - 1))
199 #define SAL_MAX_INT8 ((sal_Int8) 0x7F)
200 #define SAL_MAX_UINT8 ((sal_uInt8) 0xFF)
201 #define SAL_MIN_INT16 ((sal_Int16) (-0x7FFF - 1))
202 #define SAL_MAX_INT16 ((sal_Int16) 0x7FFF)
203 #define SAL_MAX_UINT16 ((sal_uInt16) 0xFFFF)
204 #define SAL_MIN_INT32 ((sal_Int32) (-0x7FFFFFFF - 1))
205 #define SAL_MAX_INT32 ((sal_Int32) 0x7FFFFFFF)
206 #define SAL_MAX_UINT32 ((sal_uInt32) 0xFFFFFFFF)
207 #define SAL_MIN_INT64 ((sal_Int64) (SAL_CONST_INT64(-0x7FFFFFFFFFFFFFFF) - 1))
208 #define SAL_MAX_INT64 ((sal_Int64) SAL_CONST_INT64(0x7FFFFFFFFFFFFFFF))
209 #define SAL_MAX_UINT64 ((sal_uInt64) SAL_CONST_UINT64(0xFFFFFFFFFFFFFFFF))
210 
211 #if SAL_TYPES_SIZEOFPOINTER == 4
212 #define SAL_MAX_SSIZE SAL_MAX_INT32
213 #define SAL_MAX_SIZE SAL_MAX_UINT32
214 #elif SAL_TYPES_SIZEOFPOINTER == 8
215 #define SAL_MAX_SSIZE SAL_MAX_INT64
216 #define SAL_MAX_SIZE SAL_MAX_UINT64
217 #endif
218 
219 #define SAL_MAX_ENUM 0x7fffffff
220 
221 #if defined(_MSC_VER)
222 # define SAL_DLLPUBLIC_EXPORT __declspec(dllexport)
223 # define SAL_JNI_EXPORT __declspec(dllexport)
224 # define SAL_DLLPUBLIC_IMPORT __declspec(dllimport)
225 # define SAL_DLLPRIVATE
226 # define SAL_DLLPUBLIC_TEMPLATE
227 # define SAL_DLLPUBLIC_RTTI
228 # define SAL_CALL __cdecl
229 #elif defined SAL_UNX
230 # if defined(__GNUC__)
231 # if defined(DISABLE_DYNLOADING)
232 # define SAL_DLLPUBLIC_EXPORT __attribute__ ((visibility("hidden")))
233 # define SAL_JNI_EXPORT __attribute__ ((visibility("default")))
234 # define SAL_DLLPUBLIC_IMPORT __attribute__ ((visibility("hidden")))
235 # define SAL_DLLPRIVATE __attribute__ ((visibility("hidden")))
236 # define SAL_DLLPUBLIC_TEMPLATE __attribute__ ((visibility("hidden")))
237 # define SAL_DLLPUBLIC_RTTI
238 # else
239 # define SAL_DLLPUBLIC_EXPORT __attribute__ ((visibility("default")))
240 # define SAL_JNI_EXPORT __attribute__ ((visibility("default")))
241 # define SAL_DLLPUBLIC_IMPORT __attribute__ ((visibility("default")))
242 # define SAL_DLLPRIVATE __attribute__ ((visibility("hidden")))
243 # define SAL_DLLPUBLIC_TEMPLATE __attribute__ ((visibility("default")))
244 # if defined __clang__
245 # if __has_attribute(type_visibility)
246 # define SAL_DLLPUBLIC_RTTI __attribute__ ((type_visibility("default")))
247 # else
248 # define SAL_DLLPUBLIC_RTTI __attribute__ ((visibility("default")))
249 # endif
250 # else
251 # define SAL_DLLPUBLIC_RTTI
252 # endif
253 # endif
254 # else
255 # define SAL_DLLPUBLIC_EXPORT
256 # define SAL_JNI_EXPORT
257 # define SAL_DLLPUBLIC_IMPORT
258 # define SAL_DLLPRIVATE
259 # define SAL_DLLPUBLIC_TEMPLATE
260 # define SAL_DLLPUBLIC_RTTI
261 # endif
262 # define SAL_CALL
263 #else
264 # error("unknown platform")
265 #endif
266 
273 #if defined(__GNUC__)
274 # if defined(DISABLE_DYNLOADING)
275 # define SAL_EXCEPTION_DLLPUBLIC_EXPORT __attribute__((visibility("default")))
276 # else
277 # define SAL_EXCEPTION_DLLPUBLIC_EXPORT SAL_DLLPUBLIC_EXPORT
278 # endif
279 # define SAL_EXCEPTION_DLLPRIVATE SAL_DLLPRIVATE
280 #else
281 # define SAL_EXCEPTION_DLLPUBLIC_EXPORT
282 # define SAL_EXCEPTION_DLLPRIVATE
283 #endif
284 
291 #if defined LIBO_INTERNAL_ONLY && defined __cplusplus
292 #define SAL_WARN_UNUSED_RESULT [[nodiscard]]
293 #elif (defined __GNUC__ \
294  && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))) \
295  || defined __clang__
296 # define SAL_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
297 #else
298 # define SAL_WARN_UNUSED_RESULT
299 #endif
300 
305 #ifdef _MSC_VER
306 # define SAL_NO_VTABLE __declspec(novtable)
307 #else
308 # define SAL_NO_VTABLE
309 #endif
310 
311 #ifdef _WIN32
312 # pragma pack(push, 8)
313 #endif
314 
317 typedef struct _sal_Sequence
318 {
321  sal_Int32 nRefCount;
324  sal_Int32 nElements;
327  char elements[1];
329 
330 #define SAL_SEQUENCE_HEADER_SIZE ((sal_Size) offsetof(sal_Sequence,elements))
331 
332 #if defined( _WIN32)
333 #pragma pack(pop)
334 #endif
335 
336 #if defined __cplusplus
337 
342 #define SAL_THROW_EXTERN_C() throw ()
343 
348 #if defined(LIBO_INTERNAL_ONLY) && defined(__COVERITY__)
349 # define COVERITY_NOEXCEPT_FALSE noexcept(false)
350 #else
351 # define COVERITY_NOEXCEPT_FALSE
352 #endif
353 
354 #else
355 
356 #define SAL_THROW_EXTERN_C()
357 
358 #endif
359 
360 #ifdef __cplusplus
361 }
362 #endif /* __cplusplus */
363 
364 #ifdef __cplusplus
365 
367 {
371 };
372 
373 namespace com { namespace sun { namespace star { } } }
374 
379 namespace css = ::com::sun::star;
380 
389 #if defined LIBO_INTERNAL_ONLY
390 #define SAL_DELETED_FUNCTION = delete
391 #else
392 #define SAL_DELETED_FUNCTION
393 #endif
394 
402 #if defined LIBO_INTERNAL_ONLY
403 #define SAL_OVERRIDE override
404 #else
405 #define SAL_OVERRIDE
406 #endif
407 
408 #endif /* __cplusplus */
409 
410 #ifdef __cplusplus
411 
412 namespace sal {
413 
425 template< typename T1, typename T2 > inline T1 static_int_cast(T2 n) {
426  return static_cast< T1 >(n);
427 }
428 
429 }
430 
431 #else /* __cplusplus */
432 
445 #define SAL_INT_CAST(type, expr) ((type) (expr))
446 
447 #endif /* __cplusplus */
448 
454 #if defined __GNUC__ || defined __clang__
455 #if defined LIBO_INTERNAL_ONLY
456 # define SAL_DEPRECATED(message) __attribute__((deprecated(message)))
457 #else
458 # define SAL_DEPRECATED(message) __attribute__((deprecated))
459 #endif
460 #elif defined(_MSC_VER)
461 # define SAL_DEPRECATED(message) __declspec(deprecated(message))
462 #else
463 # define SAL_DEPRECATED(message)
464 #endif
465 
477 #ifdef LIBO_INTERNAL_ONLY
478 # define SAL_DEPRECATED_INTERNAL(message)
479 #else
480 # define SAL_DEPRECATED_INTERNAL(message) SAL_DEPRECATED(message)
481 #endif
482 
490 #if defined LIBO_INTERNAL_ONLY && defined __GNUC__
491 #define SAL_WNODEPRECATED_DECLARATIONS_PUSH \
492  _Pragma(SAL_STRINGIFY_ARG(GCC diagnostic push)) \
493  _Pragma(SAL_STRINGIFY_ARG(GCC diagnostic ignored "-Wdeprecated-declarations"))
494 #define SAL_WNODEPRECATED_DECLARATIONS_POP \
495  _Pragma(SAL_STRINGIFY_ARG(GCC diagnostic pop))
496 #else
497 # define SAL_WNODEPRECATED_DECLARATIONS_PUSH
498 # define SAL_WNODEPRECATED_DECLARATIONS_POP
499 #endif
500 
517 #ifdef _MSC_VER
518 #define SAL_WNOUNREACHABLE_CODE_PUSH \
519  __pragma(warning(push)) \
520  __pragma(warning(disable:4702)) \
521  __pragma(warning(disable:4722))
522 #define SAL_WNOUNREACHABLE_CODE_POP \
523  __pragma(warning(pop))
524 #else
525 /* Add definitions for GCC and Clang if needed */
526 #define SAL_WNOUNREACHABLE_CODE_PUSH
527 #define SAL_WNOUNREACHABLE_CODE_POP
528 #endif
529 
553 #if defined __cplusplus
554 #if defined __GNUC__ || defined __clang__
555 #define SAL_UNUSED_PARAMETER __attribute__ ((unused))
556 #else
557 #define SAL_UNUSED_PARAMETER
558 #endif
559 #endif
560 
573 #if defined LIBO_INTERNAL_ONLY && (defined __GNUC__ || defined __clang__)
574 #define SAL_WARN_UNUSED __attribute__((warn_unused))
575 #else
576 #define SAL_WARN_UNUSED
577 #endif
578 
580 
581 #if defined __GNUC__ || defined __clang__
582 // Macro to try to catch and warn on assignments inside expr.
583 # define SAL_DETAIL_BOOLEAN_EXPR(expr) \
584  __extension__ ({ \
585  int sal_boolean_var_; \
586  if (expr) \
587  sal_boolean_var_ = 1; \
588  else \
589  sal_boolean_var_ = 0; \
590  sal_boolean_var_; \
591  })
592 
603 # define SAL_LIKELY(expr) __builtin_expect(SAL_DETAIL_BOOLEAN_EXPR((expr)), 1)
604 
615 # define SAL_UNLIKELY(expr) __builtin_expect(SAL_DETAIL_BOOLEAN_EXPR((expr)), 0)
616 
628 # define SAL_HOT __attribute__((hot))
629 
643 # define SAL_COLD __attribute__((cold))
644 #else
645 # define SAL_LIKELY(expr) (expr)
646 # define SAL_UNLIKELY(expr) (expr)
647 # define SAL_HOT
648 # define SAL_COLD
649 #endif
650 
652 
654 
663 #ifndef __has_attribute
664 #define __has_attribute(x) 0
665 #endif
666 
667 #if defined LIBO_INTERNAL_ONLY && ((defined __GNUC__ && !defined __clang__) || (defined __clang__ && __has_attribute(returns_nonnull)))
668 #define SAL_RETURNS_NONNULL __attribute__((returns_nonnull))
669 #else
670 #define SAL_RETURNS_NONNULL
671 #endif
673 
674 #endif // INCLUDED_SAL_TYPES_H
675 
676 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
unsigned char sal_uChar
A legacy synonym for unsigned char.
Definition: types.h:128
__sal_NoAcquire
Definition: types.h:367
@ SAL_NO_ACQUIRE
definition of a no acquire enum for ctors
Definition: types.h:370
unsigned char sal_uInt8
Definition: types.h:40
char sal_Char
A legacy synonym for char.
Definition: types.h:116
struct _sal_Sequence sal_Sequence
This is the binary specification of a SAL sequence.
unsigned char sal_Bool
Definition: types.h:34
signed char sal_sChar
A legacy synonym for signed char.
Definition: types.h:122
sal_uInt16 sal_Unicode
Definition: types.h:137
void * sal_Handle
Definition: types.h:140
signed char sal_Int8
Definition: types.h:39
Definition: types.h:373
Definition: types.h:373
Definition: types.h:412
T1 static_int_cast(T2 n)
A static_cast between integral types, to avoid C++ compiler warnings.
Definition: types.h:425
This is the binary specification of a SAL sequence.
Definition: types.h:318
sal_Int32 nRefCount
reference count of sequence
Definition: types.h:321
sal_Int32 nElements
element count
Definition: types.h:324
char elements[1]
elements array
Definition: types.h:327