Re: Problem when defining my own string.h

Hi,

I'm having a weird problem when using Visual Studio. I'm creating a
small library with different utility classes. Thing is that everything
compiles ok, but when I create a string.h / string.cpp files, I get
the following errors:

***
\microsoft platform sdk for windows server 2003 r2\include
\guiddef.h(161) : error C3861: 'memcmp': identifier not found
\microsoft platform sdk for windows server 2003 r2\include
\stralign.h(101) : error C3861: 'wcscpy': identifier not found
***

Also, if I used std::string internally in my string class (to make my
class a wrapper over the std's string), then I'd get far more errors
(please note that 100+ errors are displayed)

***
1>c:\program files\microsoft visual studio 8\vc\include\cstring(18) :
error C2039: 'memchr' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(18) :
error C2873: 'memchr' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(18) :
error C2039: 'memcmp' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(18) :
error C2873: 'memcmp' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(19) :
error C2039: 'memcpy' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(19) :
error C2873: 'memcpy' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(19) :
error C2039: 'memmove' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(19) :
error C2873: 'memmove' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(19) :
error C2039: 'memset' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(19) :
error C2873: 'memset' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(20) :
error C2039: 'strcat' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(20) :
error C2873: 'strcat' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(20) :
error C2039: 'strchr' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(20) :
error C2873: 'strchr' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(20) :
error C2039: 'strcmp' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(20) :
error C2873: 'strcmp' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(21) :
error C2039: 'strcoll' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(21) :
error C2873: 'strcoll' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(21) :
error C2039: 'strcpy' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(21) :
error C2873: 'strcpy' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(21) :
error C2039: 'strcspn' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(21) :
error C2873: 'strcspn' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(22) :
error C2039: 'strerror' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(22) :
error C2873: 'strerror' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(22) :
error C2039: 'strlen' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(22) :
error C2873: 'strlen' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(22) :
error C2039: 'strncat' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(22) :
error C2873: 'strncat' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(23) :
error C2039: 'strncmp' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(23) :
error C2873: 'strncmp' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(23) :
error C2039: 'strncpy' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(23) :
error C2873: 'strncpy' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(23) :
error C2039: 'strpbrk' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(23) :
error C2873: 'strpbrk' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(24) :
error C2039: 'strrchr' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(24) :
error C2873: 'strrchr' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(24) :
error C2039: 'strspn' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(24) :
error C2873: 'strspn' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(24) :
error C2039: 'strstr' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(24) :
error C2873: 'strstr' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(25) :
error C2039: 'strtok' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(25) :
error C2873: 'strtok' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\cstring(25) :
error C2039: 'strxfrm' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\cstring(25) :
error C2873: 'strxfrm' : symbol cannot be used in a using-declaration
1>c:\program files\microsoft visual studio 8\vc\include\new(53) :
error C2732: linkage specification contradicts earlier specification
for 'operator delete'
1> c:\program files\microsoft visual studio 8\vc\include
\new(53) : see declaration of 'operator delete'
1>c:\program files\microsoft visual studio 8\vc\include\new(54) :
error C2732: linkage specification contradicts earlier specification
for 'operator new'
1> c:\program files\microsoft visual studio 8\vc\include
\new(54) : see declaration of 'operator new'
1>c:\program files\microsoft visual studio 8\vc\include\new(80) :
error C2733: second C linkage of overloaded function 'operator
delete[]' not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\new(80) : see declaration of 'operator delete[]'
1>c:\program files\microsoft visual studio 8\vc\include\new(83) :
error C2733: second C linkage of overloaded function 'operator new[]'
not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\new(82) : see declaration of 'operator new[]'
1>c:\program files\microsoft visual studio 8\vc\include\new(88) :
error C2733: second C linkage of overloaded function 'operator new'
not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\new(87) : see declaration of 'operator new'
1>c:\program files\microsoft visual studio 8\vc\include\new(91) :
error C2733: second C linkage of overloaded function 'operator new[]'
not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\new(90) : see declaration of 'operator new[]'
1>c:\program files\microsoft visual studio 8\vc\include\new(94) :
error C2733: second C linkage of overloaded function 'operator delete'
not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\new(93) : see declaration of 'operator delete'
1>c:\program files\microsoft visual studio 8\vc\include\new(97) :
error C2733: second C linkage of overloaded function 'operator
delete[]' not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\new(96) : see declaration of 'operator delete[]'
1>c:\program files\microsoft visual studio 8\vc\include
\crtdbg.h(1160) : error C2732: linkage specification contradicts
earlier specification for 'operator new[]'
1> c:\program files\microsoft visual studio 8\vc\include
\crtdbg.h(1160) : see declaration of 'operator new[]'
1>c:\program files\microsoft visual studio 8\vc\include
\crtdbg.h(1177) : error C2732: linkage specification contradicts
earlier specification for 'operator delete[]'
1> c:\program files\microsoft visual studio 8\vc\include
\crtdbg.h(1177) : see declaration of 'operator delete[]'
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(39) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(122) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(154) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(291) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(406) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(436) :
error C2039: 'memcmp' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(436) :
error C3861: 'memcmp': identifier not found
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(466) :
error C2039: 'memchr' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(466) :
error C3861: 'memchr': identifier not found
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(489) :
error C2039: 'memset' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(489) :
error C3861: 'memset': identifier not found
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(520) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(533) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(542) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(549) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(556) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(565) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(577) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(585) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(591) :
error C2733: second C linkage of overloaded function
'std::_Traits_helper::copy_s' not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\iosfwd(587) : see declaration of 'std::_Traits_helper::copy_s'
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(594) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(601) :
error C2733: second C linkage of overloaded function
'std::_Traits_helper::copy_s' not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\iosfwd(597) : see declaration of 'std::_Traits_helper::copy_s'
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(604) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(612) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(618) :
error C2733: second C linkage of overloaded function
'std::_Traits_helper::move_s' not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\iosfwd(614) : see declaration of 'std::_Traits_helper::move_s'
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(621) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(628) :
error C2733: second C linkage of overloaded function
'std::_Traits_helper::move_s' not allowed
1> c:\program files\microsoft visual studio 8\vc\include
\iosfwd(624) : see declaration of 'std::_Traits_helper::move_s'
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(633) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(636) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(639) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(642) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(645) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(648) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(651) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(654) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(657) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(661) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(665) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(669) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(673) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(676) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(679) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(682) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(687) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(690) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\iosfwd(693) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\utility(15) :
error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 8\vc\include\utility(15) :
fatal error C1003: error count exceeds 100; stopping compilation
***

The really strange thing, at least to me, is that so far none of the
other files in my library relies on string.h, so it seems that its
sole existence confuses MSVC somehow. One solution I thought was
avoiding the system include directory, but the problem is that some of
the classes need access to win32 api, so I need it.

Simple solution so far: just renaming string.h to stringxxx.h and
everything works ok. But of course, I'd like to use string.h for
clarity sake. Is there any workaround for this?

Thanks in advance.