Clarify documentation for if.
[cmake.git] / Source / cmStandardIncludes.h
blob8f476af15d6cb591b10254fa50d8e99b23f3d5de
1 /*=========================================================================
3 Program: CMake - Cross-Platform Makefile Generator
4 Module: $RCSfile: cmStandardIncludes.h,v $
5 Language: C++
6 Date: $Date: 2009-06-12 15:05:02 $
7 Version: $Revision: 1.76 $
9 Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
10 See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
12 This software is distributed WITHOUT ANY WARRANTY; without even
13 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
14 PURPOSE. See the above copyright notices for more information.
16 =========================================================================*/
17 /**
18 * Include header files as a function of the build process, compiler,
19 * and operating system.
21 #ifndef cmStandardIncludes_h
22 #define cmStandardIncludes_h
24 // include configure generated header to define CMAKE_NO_ANSI_STREAM_HEADERS,
25 // CMAKE_NO_STD_NAMESPACE, and other macros.
26 #include "cmConfigure.h"
27 #include <cmsys/Configure.hxx>
29 #ifdef _MSC_VER
30 #pragma warning ( disable : 4786 )
31 #pragma warning ( disable : 4503 )
32 #pragma warning ( disable : 4512 ) /* operator=() could not be generated */
33 #define CMAKE_NO_ANSI_FOR_SCOPE
34 #endif
36 #ifdef __BORLANDC__
37 # pragma warn -8030 /* Temporary used for parameter */
38 # pragma warn -8027 /* 'for' not inlined. */
39 # pragma warn -8026 /* 'exception' not inlined. */
40 # pragma warn -8004 /* value never used */
41 #endif
43 #ifdef __ICL
44 #pragma warning ( disable : 985 )
45 #endif
47 #include <stdarg.h> // Work-around for SGI MIPSpro 7.4.2m header bug
49 // This is a hack to prevent warnings about these functions being
50 // declared but not referenced.
51 #if defined(__sgi) && !defined(__GNUC__)
52 # include <sys/termios.h>
53 class cmStandardIncludesHack
55 public:
56 enum
58 Ref1 = sizeof(cfgetospeed(0)),
59 Ref2 = sizeof(cfgetispeed(0)),
60 Ref3 = sizeof(tcgetattr(0, 0)),
61 Ref4 = sizeof(tcsetattr(0, 0, 0)),
62 Ref5 = sizeof(cfsetospeed(0,0)),
63 Ref6 = sizeof(cfsetispeed(0,0))
66 #endif
68 // Include stream compatibility layer from KWSys.
69 // This is needed to work with large file support
70 // on some platforms whose stream operators do not
71 // support the large integer types.
72 #if defined(CMAKE_BUILD_WITH_CMAKE)
73 # include <cmsys/IOStream.hxx>
74 # undef GetCurrentDirectory // Borland <iosfwd> includes windows.h
75 #endif
77 // Avoid warnings in system headers.
78 #if defined(_MSC_VER)
79 # pragma warning (push,1)
80 #endif
81 #if defined(__BORLANDC__)
82 # pragma warn -8008 /* condition is always false (RESET BELOW!) */
83 # pragma warn -8066 /* unreachable code (RESET BELOW!) */
84 #endif
86 #ifndef CMAKE_NO_ANSI_STREAM_HEADERS
87 # include <fstream>
88 # include <iostream>
89 # include <iomanip>
90 #else
91 # include <fstream.h>
92 # include <iostream.h>
93 # include <iomanip.h>
94 #endif
96 #if !defined(CMAKE_NO_ANSI_STRING_STREAM)
97 # include <sstream>
98 #elif !defined(CMAKE_NO_ANSI_STREAM_HEADERS)
99 # include <strstream>
100 #else
101 # include <strstream.h>
102 #endif
104 // we must have stl with the standard include style
105 #include <vector>
106 #include <string>
107 #include <iterator>
108 #include <algorithm>
109 #include <functional>
110 #include <map>
111 #include <list>
112 #include <set>
113 #include <deque>
115 #if defined(__BORLANDC__)
116 # pragma warn .8008 /* condition is always false (disabled above) */
117 # pragma warn .8066 /* unreachable code (disabled above) */
118 #endif
119 #if defined(_MSC_VER)
120 # pragma warning(pop)
121 #endif
123 // include the "c" string header
124 #include <string.h>
125 #include <stdio.h>
126 #include <stdlib.h>
128 // Borland C++ defines several of the stdlib.h and string.h symbols in
129 // sub-headers search.h and mem.h. These sub-headers have using
130 // declarations to pull functions from the std namespace to the global
131 // namespace, but they are defined only if the header was not included
132 // through the C++-style cstdlib or cstring header. These outer
133 // headers are included by the streams library in C++-style and
134 // include blockers are put in place that prevent including the
135 // C-style versions from ever including the sub-headers. Therefore we
136 // have to include the sub-headers here to get the using declarations.
137 #if defined(__BORLANDC__)
138 # include <mem.h> /* mem... functions from string.h */
139 # include <search.h> /* search functions from stdlib.h */
140 #endif
143 #if !defined(_WIN32) && defined(__COMO__)
144 // Hack for como strict mode to avoid defining _SVID_SOURCE or _BSD_SOURCE.
145 extern "C"
147 extern FILE *popen (__const char *__command, __const char *__modes) __THROW;
148 extern int pclose (FILE *__stream) __THROW;
149 extern char *realpath (__const char *__restrict __name,
150 char *__restrict __resolved) __THROW;
151 extern char *strdup (__const char *__s) __THROW;
152 extern int putenv (char *__string) __THROW;
154 #endif
156 // if std:: is not supported, then just #define it away
157 #ifdef CMAKE_NO_STD_NAMESPACE
158 #define std
159 #endif
161 // if the compiler does not support ansi for scoping of vars use a
162 // #define hack
163 #ifdef CMAKE_NO_ANSI_FOR_SCOPE
164 #define for if(false) {} else for
165 #endif
167 // check for the 720 compiler on the SGI
168 // which has some strange properties that I don't think are worth
169 // checking for in a general way in configure
170 #if defined(__sgi) && !defined(__GNUC__)
171 # if (_COMPILER_VERSION >= 730)
172 # define CM_SGI_CC_730
173 # elif (_COMPILER_VERSION >= 720)
174 # define CM_HAS_STD_BUT_NOT_FOR_IOSTREAM
175 # endif
176 #endif
178 #ifdef __DECCXX_VER
179 # if __DECCXX_VER <= 60390008
180 # define CM_HAS_STD_BUT_NOT_FOR_IOSTREAM
181 # endif
182 #endif
184 #if defined( _MSC_VER )
185 typedef unsigned short mode_t;
186 #endif
189 #ifdef CM_HAS_STD_BUT_NOT_FOR_IOSTREAM
190 // some compilers have std:: but not for the stream library,
191 // so we have to bring it into the std namespace by hand.
192 namespace std {
193 using ::ostream;
194 using ::istream;
195 using ::ios;
196 using ::cout;
197 using ::cerr;
198 using ::cin;
199 using ::ifstream;
200 using ::ofstream;
202 #if !defined(CMAKE_NO_ANSI_STRING_STREAM)
203 using ::ostringstream;
204 using ::istringstream;
205 #else
206 using ::ostrstream;
207 using ::istrstream;
208 #endif
210 using ::endl;
211 using ::ends;
212 using ::flush;
213 using ::dec;
214 using ::hex;
215 using ::setw;
216 using ::setiosflags;
217 using ::setfill;
218 using ::setprecision;
220 // The string class is missing these operators so add them
221 #if !defined(cmsys_STL_STRING_NEQ_CHAR_DEFINED)
222 # define cmsys_STL_STRING_NO_NEQ_CHAR
223 inline bool operator!=(std::string const& a, const char* b)
224 { return !(a==std::string(b)); }
225 #endif
227 inline bool operator==(std::string const& a, const char* b)
228 { return (a==std::string(b)); }
229 # endif // end CM_SGI_CC_720
231 #if defined(__sgi) && !defined(__GNUC__)
232 # pragma set woff 1375 /* base class destructor not virtual */
233 #endif
235 // use this class to shrink the size of symbols in .o files
236 // std::string is really basic_string<....lots of stuff....>
237 // when combined with a map or set, the symbols can be > 2000 chars!
238 #include <cmsys/String.hxx>
239 typedef cmsys::String cmStdString;
241 // Define cmOStringStream and cmIStringStream wrappers to hide
242 // differences between std::stringstream and the old strstream.
243 #if !defined(CMAKE_NO_ANSI_STRING_STREAM)
244 class cmOStringStream: public std::ostringstream
246 public:
247 cmOStringStream() {}
248 private:
249 cmOStringStream(const cmOStringStream&);
250 void operator=(const cmOStringStream&);
252 class cmIStringStream: public std::istringstream
254 public:
255 typedef std::istringstream Superclass;
256 cmIStringStream() {}
257 cmIStringStream(const std::string& s): Superclass(s) {}
258 private:
259 cmIStringStream(const cmIStringStream&);
260 void operator=(const cmIStringStream&);
262 #else
263 class cmOStrStreamCleanup
265 public:
266 cmOStrStreamCleanup(std::ostrstream& ostr): OStrStream(ostr) {}
267 ~cmOStrStreamCleanup() { this->OStrStream.rdbuf()->freeze(0); }
268 static void IgnoreUnusedVariable(const cmOStrStreamCleanup&) {}
269 protected:
270 std::ostrstream& OStrStream;
273 class cmOStringStream: public std::ostrstream
275 public:
276 typedef std::ostrstream Superclass;
277 cmOStringStream() {}
278 std::string str()
280 cmOStrStreamCleanup cleanup(*this);
281 cmOStrStreamCleanup::IgnoreUnusedVariable(cleanup);
282 int pcount = this->pcount();
283 const char* ptr = this->Superclass::str();
284 return std::string(ptr?ptr:"", pcount);
286 private:
287 cmOStringStream(const cmOStringStream&);
288 void operator=(const cmOStringStream&);
291 class cmIStringStream: private std::string, public std::istrstream
293 public:
294 typedef std::string StdString;
295 typedef std::istrstream IStrStream;
296 cmIStringStream(): StdString(), IStrStream(StdString::c_str()) {}
297 cmIStringStream(const std::string& s):
298 StdString(s), IStrStream(StdString::c_str()) {}
299 std::string str() const { return *this; }
300 void str(const std::string& s)
302 // Very dangerous. If this throws, the object is hosed. When the
303 // destructor is later called, the program is hosed too.
304 this->~cmIStringStream();
305 new (this) cmIStringStream(s);
307 private:
308 cmIStringStream(const cmIStringStream&);
309 void operator=(const cmIStringStream&);
311 #endif
313 /* Poison this operator to avoid common mistakes. */
314 extern void operator << (std::ostream&, const cmOStringStream&);
316 /** Standard documentation entry for cmDocumentation's formatting. */
317 struct cmDocumentationEntry
319 std::string Name;
320 std::string Brief;
321 std::string Full;
322 cmDocumentationEntry(){};
323 cmDocumentationEntry(const char *doc[3])
324 { if (doc[0]) this->Name = doc[0];
325 if (doc[1]) this->Brief = doc[1];
326 if (doc[2]) this->Full = doc[2]; };
327 cmDocumentationEntry(const char *n, const char *b, const char *f)
328 { if (n) this->Name = n; if (b) this->Brief = b; if (f) this->Full = f; };
331 /** Data structure to represent a single command line. */
332 class cmCustomCommandLine: public std::vector<std::string>
334 public:
335 typedef std::vector<std::string> Superclass;
336 typedef Superclass::iterator iterator;
337 typedef Superclass::const_iterator const_iterator;
340 /** Data structure to represent a list of command lines. */
341 class cmCustomCommandLines: public std::vector<cmCustomCommandLine>
343 public:
344 typedef std::vector<cmCustomCommandLine> Superclass;
345 typedef Superclass::iterator iterator;
346 typedef Superclass::const_iterator const_iterator;
349 #if defined(__sgi) && !defined(__GNUC__)
350 # pragma reset woff 1375 /* base class destructor not virtual */
351 #endif
353 // All subclasses of cmCommand or cmCTestGenericHandler should
354 // invoke this macro.
355 #define cmTypeMacro(thisClass,superclass) \
356 virtual const char* GetNameOfClass() { return #thisClass; } \
357 typedef superclass Superclass; \
358 static bool IsTypeOf(const char *type) \
360 if ( !strcmp(#thisClass,type) ) \
362 return true; \
364 return Superclass::IsTypeOf(type); \
366 virtual bool IsA(const char *type) \
368 return thisClass::IsTypeOf(type); \
370 static thisClass* SafeDownCast(cmObject *c) \
372 if ( c && c->IsA(#thisClass) ) \
374 return static_cast<thisClass *>(c); \
376 return 0;\
381 #endif