c++ - visual studio c++ redis(msopentech 端口)客户端，hiredis

Question

我是 c++ 的新手，我决定尝试一下 visual studio c++、boost、llvm(在 boost 1.55 和 visual studio 2013 中已经失败)和 redis。

这是一个小宠物项目，用于解析从socket读取的原始数据并缓存到redis中。

当我试图链接到 hiredis.lib 时，我遇到了很多错误。

我知道我做错了什么，但我的试验变成了无限循环。我 anybosy 可以指导一下，我们将不胜感激。

亲切的问候。

错误:

1>------ Build started: Project: example4, Configuration: Debug x64 ------
1>  Source.cpp
1>LIBCMTD.lib(dosmap.obj) : error LNK2005: _errno already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: _CrtSetCheckCount already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: _aligned_free already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: _aligned_malloc already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: _calloc_dbg already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_wctype.obj) : error LNK2005: iswalnum already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_wctype.obj) : error LNK2005: iswalpha already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_wctype.obj) : error LNK2005: iswgraph already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_wctype.obj) : error LNK2005: iswspace already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(mlock.obj) : error LNK2005: _lock already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(mlock.obj) : error LNK2005: _unlock already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtCaptureCurrentContext already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtCapturePreviousContext already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtSetUnhandledExceptionFilter already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtTerminateProcess already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtUnhandledException already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(tidtable.obj) : error LNK2005: _getptd already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(invarg.obj) : error LNK2005: _invalid_parameter already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(sprintf.obj) : error LNK2005: sprintf already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbghook.obj) : error LNK2005: __crt_debugger_hook already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_file.obj) : error LNK2005: __iob_func already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_file.obj) : error LNK2005: _lock_file already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_file.obj) : error LNK2005: _unlock_file already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: _amsg_exit already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: _cexit already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: _exit already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: _initterm_e already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: exit already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(errmode.obj) : error LNK2005: __set_app_type already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winxfltr.obj) : error LNK2005: _XcptFilter already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(wsetloca.obj) : error LNK2005: _configthreadlocale already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(vsnprnc.obj) : error LNK2005: vsprintf_s already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(fflush.obj) : error LNK2005: fflush already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(hooks.obj) : error LNK2005: "void __cdecl terminate(void)" (?terminate@@YAXXZ) already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0init.obj) : error LNK2005: __xi_a already defined in MSVCRTD.lib(cinitexe.obj)
1>LIBCMTD.lib(crt0init.obj) : error LNK2005: __xi_z already defined in MSVCRTD.lib(cinitexe.obj)
1>LIBCMTD.lib(crt0init.obj) : error LNK2005: __xc_a already defined in MSVCRTD.lib(cinitexe.obj)
1>LIBCMTD.lib(crt0init.obj) : error LNK2005: __xc_z already defined in MSVCRTD.lib(cinitexe.obj)
1>LIBCMTD.lib(dbgrptw.obj) : error LNK2005: _CrtDbgReportW already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(printf.obj) : error LNK2005: printf already defined in MSVCRTD.lib(MSVCR120D.dll)
1>MSVCRTD.lib(MSVCR120D.dll) : error LNK2005: strcpy_s already defined in LIBCMTD.lib(strcpy_s.obj)
1>MSVCRTD.lib(MSVCR120D.dll) : error LNK2005: iswdigit already defined in LIBCMTD.lib(_wctype.obj)
1>LINK : warning LNK4098: defaultlib 'MSVCRTD' conflicts with use of other libs; use /NODEFAULTLIB:library
1>LINK : warning LNK4098: defaultlib 'LIBCMTD' conflicts with use of other libs; use /NODEFAULTLIB:library
1>hiredis.lib(hiredis.obj) : error LNK2019: unresolved external symbol strerror_r referenced in function __redisSetError
1>hiredis.lib(net.obj) : error LNK2001: unresolved external symbol strerror_r
1>hiredis.lib(hiredis.obj) : error LNK2001: unresolved external symbol fdapi_close
1>hiredis.lib(net.obj) : error LNK2001: unresolved external symbol fdapi_close
1>hiredis.lib(net.obj) : error LNK2001: unresolved external symbol fcntl
1>hiredis.lib(net.obj) : error LNK2001: unresolved external symbol poll
1>F:\SoftwareDevelopment\cplusplus\example4\x64\Debug\example4.exe : fatal error LNK1120: 4 unresolved externals
========== Build: 0 succeeded, 1 failed, 2 up-to-date, 0 skipped ==========

项目文件:

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Answer 1

在构建使用 hiredis 的可执行文件时，确保链接到 两者 hiredis.lib 和 Win32_Interop.lib

Configuration Properties > Linker > Input > Additional Dependencies

此外，您可能希望将正在构建的所有项目的运行时库更改为 dll 版本(多线程 DLL (/MD))

Configuration Properties > C/C++ > Code Generation > Runtime-Library