xref: /reactos/sdk/include/c++/stlport/errno.h (revision 4561998a)
1 /*
2  * Copyright (c) 1999
3  * Boris Fomitchev
4  *
5  * This material is provided "as is", with absolutely no warranty expressed
6  * or implied. Any use is at your own risk.
7  *
8  * Permission to use or copy this software for any purpose is hereby granted
9  * without fee, provided the above notices are retained on all copies.
10  * Permission to modify the code and to distribute modified code is granted,
11  * provided the above notices are retained, and a notice that the code was
12  * modified is included with the above copyright notice.
13  *
14  */
15 
16 #if !defined (_STLP_OUTERMOST_HEADER_ID)
17 #  define _STLP_OUTERMOST_HEADER_ID 0x205
18 #  include <stl/_cprolog.h>
19 #elif (_STLP_OUTERMOST_HEADER_ID == 0x205) && !defined (_STLP_DONT_POP_HEADER_ID)
20 #  define _STLP_DONT_POP_HEADER_ID
21 #endif
22 
23 #ifdef _STLP_WCE
24 /* only show message when directly including this file in a non-library build */
25 #  if !defined(__BUILDING_STLPORT) && (_STLP_OUTERMOST_HEADER_ID == 0x205)
26 #    pragma message("eMbedded Visual C++ 3 and .NET don't have a errno.h header; STLport won't include native errno.h here")
27 #  endif
28 #else
29 #  ifndef errno
30 /* We define the following macro first to guaranty the header reentrancy: */
31 #    define _STLP_NATIVE_ERRNO_H_INCLUDED
32 #    if defined (_STLP_HAS_INCLUDE_NEXT)
33 #      include_next <errno.h>
34 #    else
35 #      include _STLP_NATIVE_C_HEADER(errno.h)
36 #    endif
37 #    if defined (__BORLANDC__) && (__BORLANDC__ >= 0x590) && defined (__cplusplus)
38 _STLP_BEGIN_NAMESPACE
39 using _STLP_VENDOR_CSTD::__errno;
40 _STLP_END_NAMESPACE
41 #    endif
42 #  endif /* errno */
43 
44 #  if !defined (_STLP_NATIVE_ERRNO_H_INCLUDED)
45 /* If errno has been defined before inclusion of native errno.h including it from STLport errno.h
46  * becomes impossible because if:
47  * #define errno foo
48  * then
49  * #include _STLP_NATIVE_C_HEADER(errno.h)
50  * becomes:
51  * #include _STLP_NATIVE_C_HEADER(foo.h)
52  *
53  * To fix this problem you have to find where this definition comes from and include errno.h before it.
54  */
55 #    define errno foo
56 #    error errno has been defined before inclusion of errno.h header.
57 #  endif
58 #endif
59 
60 #if (_STLP_OUTERMOST_HEADER_ID == 0x205)
61 #  if ! defined (_STLP_DONT_POP_HEADER_ID)
62 #    include <stl/_epilog.h>
63 #    undef  _STLP_OUTERMOST_HEADER_ID
64 #  endif
65 #  undef  _STLP_DONT_POP_HEADER_ID
66 #endif
67 
68 /* Local Variables:
69  * mode: C
70  * End:
71  */
72