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1// Common.h
2
3#ifndef __COMMON_COMMON_H
4#define __COMMON_COMMON_H
5
6/*
7This file is included to all cpp files in 7-Zip.
8Each folder contains StdAfx.h file that includes "Common.h".
9So 7-Zip includes "Common.h" in both modes:
10 with precompiled StdAfx.h
11and
12 without precompiled StdAfx.h
13
14If you use 7-Zip code, you must include "Common.h" before other h files of 7-zip.
15If you don't need some things that are used in 7-Zip,
16you can change this h file or h files included in this file.
17*/
18
19// compiler pragmas to disable some warnings
20#include "../../C/Compiler.h"
21
22// it's <windows.h> or code that defines windows things, if it's not _WIN32
23#include "MyWindows.h"
24
25// NewHandler.h and NewHandler.cpp redefine operator new() to throw exceptions, if compiled with old MSVC compilers
26#include "NewHandler.h"
27
28
29
30#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
31
32
33/* There is BUG in MSVC 6.0 compiler for operator new[]:
34 It doesn't check overflow, when it calculates size in bytes for allocated array.
35 So we can use MY_ARRAY_NEW macro instead of new[] operator. */
36
37#if defined(_MSC_VER) && (_MSC_VER == 1200) && !defined(_WIN64)
38 #define MY_ARRAY_NEW(p, T, size) p = new T[(size > (unsigned)0xFFFFFFFF / sizeof(T)) ? (unsigned)0xFFFFFFFF / sizeof(T) : size];
39#else
40 #define MY_ARRAY_NEW(p, T, size) p = new T[size];
41#endif
42
43#if (defined(__GNUC__) && (__GNUC__ >= 8))
44 #define MY_ATTR_NORETURN __attribute__((noreturn))
45#elif (defined(__clang__) && (__clang_major__ >= 3))
46 #if __has_feature(cxx_attributes)
47 #define MY_ATTR_NORETURN [[noreturn]]
48 #else
49 #define MY_ATTR_NORETURN __attribute__ ((noreturn))
50 #endif
51#elif (defined(_MSC_VER) && (_MSC_VER >= 1900))
52 #define MY_ATTR_NORETURN [[noreturn]]
53#else
54 #define MY_ATTR_NORETURN
55#endif
56
57#endif