libpqxx  4.0.1
compiler-internal.hxx
1 /*-------------------------------------------------------------------------
2  *
3  * FILE
4  * pqxx/compiler-internal.hxx
5  *
6  * DESCRIPTION
7  * Compiler deficiency workarounds for compiling libpqxx itself.
8  * DO NOT INCLUDE THIS FILE when building client programs.
9  *
10  * Copyright (c) 2002-2011, Jeroen T. Vermeulen <jtv@xs4all.nl>
11  *
12  * See COPYING for copyright license. If you did not receive a file called
13  * COPYING with this source code, please notify the distributor of this mistake,
14  * or contact the author.
15  *
16  *-------------------------------------------------------------------------
17  */
18 #ifndef PQXX_H_COMPILER_INTERNAL
19 #define PQXX_H_COMPILER_INTERNAL
20 
21 
22 // Workarounds & definitions needed to compile libpqxx into a library
23 #include "pqxx/config-internal-compiler.h"
24 
25 // Library-private configuration related to libpq version
26 #include "pqxx/config-internal-libpq.h"
27 
28 #ifdef _WIN32
29 
30 #ifdef PQXX_SHARED
31 #undef PQXX_LIBEXPORT
32 #define PQXX_LIBEXPORT __declspec(dllexport)
33 // TODO: Does Windows have a way to "unexport" a symbol in an exported class?
34 #define PQXX_PRIVATE __declspec()
35 #endif // PQXX_SHARED
36 
37 #ifdef _MSC_VER
38 #pragma warning (disable: 4251 4275 4273)
39 #pragma warning (disable: 4258) // Complains that for-scope usage is correct.
40 #pragma warning (disable: 4290)
41 #pragma warning (disable: 4351)
42 #pragma warning (disable: 4355)
43 #pragma warning (disable: 4786)
44 #pragma warning (disable: 4800) // Performance warning for boolean conversions.
45 #pragma warning (disable: 4996) // Complains that strncpy() "may" be unsafe.
46 #endif
47 
48 #elif defined(__GNUC__) && defined(PQXX_HAVE_GCC_VISIBILITY) // !_WIN32
49 
50 #define PQXX_LIBEXPORT __attribute__ ((visibility("default")))
51 #define PQXX_PRIVATE __attribute__ ((visibility("hidden")))
52 
53 #endif // __GNUC__ && PQXX_HAVE_GCC_VISIBILITY
54 
55 
56 #include "pqxx/compiler-public.hxx"
57 
58 #include <cstddef>
59 
60 #ifdef PQXX_HAVE_LIMITS
61 #include <limits>
62 #else // PQXX_HAVE_LIMITS
63 #include <climits>
64 namespace PGSTD
65 {
67 template<typename T> struct numeric_limits
68 {
69  static T max() throw ();
70  static T min() throw ();
71 };
72 template<> inline long numeric_limits<long>::max() throw () {return LONG_MAX;}
73 template<> inline long numeric_limits<long>::min() throw () {return LONG_MIN;}
74 }
75 #endif // PQXX_HAVE_LIMITS
76 #endif