标题正确，但找不到标识符 [英] Header correct, but identifier not found
本文介绍了标题正确，但找不到标识符的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有两个项目（x64）。
A 。写在C（wxWidgets）---编辑：它在C ++！
B 。以C ++编写
A 编译正常，但 B （使用 A < >）在我尝试编译时会出现几个错误。
我建议错误的原因是一样的，所以我只提到第一个。
它说：
strlen：未找到标识
在提供错误消息的文件（wxcrtbase.h）中，包括以下标题：
#include< stdio.h>
#include< string.h>`
/ strong>包含 A 中的以下标头：
#includewx / wx.h
#includewx / dcbuffer.h
#includewx / spinctrl.h
所以，目前，我不知道从哪里开始搜索的错误的原因。可能是因为我有C和C ++文件？也许我是为x64编译的？
感谢您的帮助！
编辑：更多信息
在wxcrtbase.h中生成第一条错误消息的行中的行是：
#ifdef __cplusplus
inline size_t wxStrlen（const char * s）{return s？ wxCRT_StrlenA（s）：0; }
inline size_t wxStrlen（const wchar_t * s）{return s？ wcslen（s）：0; }
wxcrtbase.h的include的顺序是
#include< stdio.h>
#include< string.h>
#include< ctype.h>
#include< wctype.h>
#include< time.h>
#include< io.h>
1>正在编译...
1> widget.cpp
1>注意：include file：m ：\visual studio 2008 \projects\general\rama\src\widget.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \\ \\ VC \include \string
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\istream
1>注：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\ostream
1>注意：包括文件：C：\Program Files Microsoft Visual Studio 9.0 \VC\include\ios
1>注意：包括文件：C：\Program Files（x86）\ Microsoft Visual Studio 9.0 \VC\include\xlocnum
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\climits
1>注意：包括文件：C：\Program Files （x86）\ Microsoft Visual Studio 9.0 \VC\include\yvals.h
1>注意：包括文件：C：\Program Files（x86）\ Microsoft Visual Studio 9.0 \VC \\ \\include\crtdefs.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC \include\sal.h
1>注意：包括文件：C：\program files（x86）\microsoft visual studio 9.0 \vc\include\codeanalysis\sourceannotations.h
1>注意：包括文件：C：\Program文件（x86）\Microsoft Visual Studio 9.0 \VC\include\crtassem.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC \include\vadefs.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\use_ansi.h
1> ;注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\limits.h
1>注意：包括文件：C：\Program Files x86）\ Microsoft Visual Studio 9.0 \VC\include\crtdefs.h
1>注意：包括文件：C：\Program Files（x86）\ Microsoft Visual Studio 9.0 \VC\ include \cstdio
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\stdio.h
1>注意：包括文件：C：\ Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\crtdefs.h
1>注意：包括文件：C：\Program Files（x86）\ Microsoft Visual Studio 9.0 \VC\include\swprintf.inl
1>注意：包括文件：C：\Program Files（x86）\ Microsoft Visual Studio 9.0 \VC\include\cstdlib
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \\\\\\\\\\\\\\\\\\\\\\\\\\\\stdlib.h
1& \Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\crtdefs.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\streambuf
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC \include \xiosbase
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC \include \xlocale
1& \\ Microsoft Visual Studio 9.0 \VC\include\ cstring
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\ wx \string.h
1>注意：包括文件：M：\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx / defs.h
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\wx / platform.h
1>注意：包括文件：M ：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\setupp.h
1>注意：包括文件：m：\visual studio 2008\projects\ general\wxwidgets-2.9.0\include\wx / version.h
1>注意：包括文件：m：\visual studio 2008\projects\general\wxwidgets-2.9.0\\ \\include\wx / cpp.h
1>注意：包括文件：m：\visual studio 2008\projects\general\wxwidgets-2.9.0\include\wx / cpp.h
1>注意：包括文件：M：/ Visual Studio 2008 / Projects / general / wxWidgets-2.9.0 / lib / vc_lib / mswud / wx / setup.h
1& M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0 \include\wx / msw / libraries.h
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\wx / chkconf.h
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets -2.9.0\include\wx / msw / chkconf.h
1>注意：包括文件：M：\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include \wx / version.h
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\wx / dlimpexp.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\程序文件（x86）\Microsoft Visual Studio 9.0 \VC\include \crtdefs.h
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets- 2.9.0 \include\wx / debug.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\assert.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\crtdefs.h
1& \Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\wx / chartype.h
1>注意：包括文件：M：\Visual Studio 2008\Projects\\ \\ general \wxWidgets-2.9.0 \include\wx / platform.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\ include \tchar.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\crtdefs.h
1>注：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\wchar.h
1>注意：包括文件：C：\Program Files（x86） \ Microsoft Visual Studio 9.0 \VC\include\crtdefs.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\\ \\wtime.inl
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\wx / cpp.h
1> ;注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0 \include\wx / windowid.h
1>注意：包括文件：M： \\ Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\wx / msw / winundef.h
1>注意：包括文件：M：\Visual Studio 2008 \Projects \general\wxWidgets-2.9.0\include\wx / features.h
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9。 0 \include\wx\string.h
1>注意：包括文件：C：\Program Files（x86）\ Microsoft Visual Studio 9.0 \VC\include\stdarg.h
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\wx / wxcrtbase.h
1>注意：包括文件：C：\ Program Files（x86）\Microsoft Visual Studio 9.0 \VC \include\io.h
1>注意：包括文件：C：\Program Files Visual Studio 9.0 \VC\include\crtdefs.h
1>注意：包括文件：C：\Program Files（x86）\ Microsoft Visual Studio 9.0 \VC\include\ cctype
1>注意：包括文件：C：\Program Files（x86）\ Microsoft Visual Studio 9.0 \VC\include\ctype.h
1& \\ Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\crtdefs.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \\ \\ VC\include\cwctype
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\wctype.h
1> ;注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\crtdefs.h
1>注意：包括文件：C：\Program Files x86）\ Microsoft Visual Studio 9.0 \VC\include\ctime
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\\ \\time.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\crtdefs.h
1>注意：包括文件：C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\time.inl
1>注意：包括文件：M：\Visual Studio 2008\Projects\\ \\general\wxWidgets-2.9.0\include\wx / chartype.h
1> M：\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\ wx / wxcrtbase.h（705）：错误C3861：'strlen'：未找到标识符
1> M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include wx / wxcrtbase.h（718）：错误C3861：'_strdup'：未找到标识符
- 您可以至少发布几行内容，包括编译器生成未找到标识符错误？
- 当你说你有一个
#include< string.h>行时，/包括 c $showIncludes选项（它在VS 2008 IDE的C ++项目属性页中的C / C ++ /高级/显示包含下）？
编辑新信息：
根据您所做的修改，从 / showIncludes ，似乎您可能有INCLUDE路径设置不正确。下面是日志中的几行：
1>注意：包括文件：C：\Program Files（x86） \Microsoft Visual Studio 9.0 \VC\include\ cstring
1>注意：包括文件：M：\Visual Studio 2008 \Projects\general\wxWidgets-2.9.0\include\\当MSVC的cstring头尝试包括时， string.h ，它从 wx 库中获取 string.h 编译器分发的一部分（这将在 C：\Program Files（x86）\Microsoft Visual Studio 9.0 \VC\include\string.h ）。
我不知道为什么 wx 库会命名其中一个自己的头 string.h （而不是 wxString.h ），但我认为它的目的是某人使用类似：
#includewx / string.h
/ pre>
无论如何，我想通过确保MSVC include目录在任何其他目录之前的INCLUDE搜索路径中来解决您的问题。
I have two projects (x64).
A. Written in C (wxWidgets) --- edit: its in C++!
B. Written in C++
A compiles fine, but B (which uses functions of A) gives several errors when I try to compile.
I suggest that the reason for the errors is the same for all, so I mention only the first.
It says:
strlen: identifier not found
In the file which gives the error messages ( wxcrtbase.h ), the following headers are included:
#include <stdio.h>
#include <string.h>`
The files from B include the following headers from A:
#include "wx/wx.h"
#include "wx/dcbuffer.h"
#include "wx/spinctrl.h"
So, currently, I have no idea where to start to search for the reason of the errors. May it be that I have C and C++ files? Maybe that I compiled for x64?
Thanks for help!
edit: more info
the lines in wxcrtbase.h around the one producing the first error message are:
#ifdef __cplusplus
inline size_t wxStrlen(const char *s) { return s ? wxCRT_StrlenA(s) : 0; }
inline size_t wxStrlen(const wchar_t *s) { return s ? wcslen(s) : 0; }
The order of the includes of the wxcrtbase.h is
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <wctype.h>
#include <time.h>
#include <io.h>
The /showIncludes lists the following ( I stop with the list after the first two error messages ):
1>Compiling...
1>widget.cpp
1>Note: including file: m:\visual studio 2008\projects\general\rama\src\widget.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include \string
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\istream
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\ostream
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\ios
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\xlocnum
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\climits
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\yvals.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\sal.h
1>Note: including file: c:\program files (x86)\microsoft visual studio 9.0\vc\include\codeanalysis\sourceannotations.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtassem.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\vadefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\use_ansi.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\limits.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\cstdio
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\stdio.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\swprintf.inl
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\cstdlib
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\stdlib.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\streambuf
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\xiosbase
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\xlocale
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\cstring
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx\string.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/defs.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/platform.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\setupp.h
1>Note: including file: m:\visual studio 2008\projects\general\wxwidgets-2.9.0\include\wx/version.h
1>Note: including file: m:\visual studio 2008\projects\general\wxwidgets-2.9.0\include\wx/cpp.h
1>Note: including file: m:\visual studio 2008\projects\general\wxwidgets-2.9.0\include\wx/cpp.h
1>Note: including file: M:/Visual Studio 2008/Projects/general/wxWidgets-2.9.0/lib/vc_lib/mswud/wx/setup.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/msw/libraries.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/chkconf.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/msw/chkconf.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/version.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/dlimpexp.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\stddef.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/debug.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\assert.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/chartype.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/platform.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\tchar.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\wchar.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\wtime.inl
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/cpp.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/windowid.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/msw/winundef.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/features.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx\string.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\stdarg.h
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/wxcrtbase.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\io.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\cctype
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\ctype.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\cwctype
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\wctype.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\ctime
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\time.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\crtdefs.h
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\time.inl
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/chartype.h
1>M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/wxcrtbase.h(705) : error C3861: 'strlen': identifier not found
1>M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx/wxcrtbase.h(718) : error C3861: '_strdup': identifier not found
解决方案 A few things to try and/or answer:
- Can you post at least the few lines around and including the one that the compiler generates the 'identifier not found' error?
- When you say you have an
#include <string.h> line, exactly which file(s) and does it precede the various wx includes?
- Can you post the output of the included headers when you build with the
/showIncludes option (it's in the VS 2008 IDE's C++ project property page under "C/C++/Advanced/Show Includes")?
Edit, with new information:
Based on the edit you made that included a more complete listing from /showIncludes, it appears that you might have the INCLUDE path set incorrectly. Here are a couple of lines from the log:
1>Note: including file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\cstring
1>Note: including file: M:\Visual Studio 2008\Projects\general\wxWidgets-2.9.0\include\wx\string.h
When MSVC's cstring header is trying to include string.h, it's picking up a string.h header from the wx library instead of the one that's part of the compiler distribution (which would be in C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\string.h).
I'm not sure why the wx library would name one of their own headers string.h (instead of, say, wxString.h), but I assume that it's intended to be picked up by someone using something like:
#include "wx/string.h"
Regardless, I think you'll fix your problem by making sure that the MSVC include directory is in the INCLUDE search path before any other directory.
这篇关于标题正确，但找不到标识符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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