Question

我使用hash_map.h运行一些下载的代码。但是当我使用g ++编译它时，它会给出错误消息：

致命错误：＆＃39; hash_map.h＆＃39;找不到文件

我在google上搜索，有人建议更换＆＃39; hash_map.h＆＃39; by＆＃39; ext / hash_map.h＆＃39;并使用命名空间__gnu_cxx添加＆＃39;＆＃39;。但我仍然收到错误消息＆＃39;致命错误：＆＃39; ext / hash_map.h＆＃39;文件未找到＆＃39;。

我键入＆＃34; sudo find / -name hash_map.h＆＃34;在我的Mac终端中，得到以下结果。

/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/usr/include/c++/4.2.1/backward/hash_map.h
/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/usr/include/c++/4.2.1/debug/hash_map.h
/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/SDKs/AppleTVSimulator.sdk/usr/include/c++/4.2.1/backward/hash_map.h
/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/SDKs/AppleTVSimulator.sdk/usr/include/c++/4.2.1/debug/hash_map.h
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include/c++/4.2.1/backward/hash_map.h
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include/c++/4.2.1/debug/hash_map.h
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/include/c++/4.2.1/backward/hash_map.h
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/include/c++/4.2.1/debug/hash_map.h
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/c++/4.2.1/backward/hash_map.h
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/c++/4.2.1/debug/hash_map.h

如何将hash_map.h链接到下载的代码？

Answer 1

我将hash_map.h的路径添加到Makefile中，如下所示。

g ++ -I /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/c++/4.2.1/ -c target.cpp

我替换了＆＃39; hash_map.h＆＃39;通过＆＃39; debug / hash_map.h＆＃39;，并添加＆＃39;使用命名空间__gnu_cxx;＆＃39;。

它对我有用。

致命错误：＆＃39; ext / hash_map.h＆＃39; Mac上找不到文件

1 个答案: