g ++即使在指定时也找不到标题 [英] g++ can't find headers even when it's specified

问题描述

所以基本上我有一些非常简单的代码，它包含 / Users / wen / Projects / include /中的< BigIntegerLibrary.hh> BIGINT 。我正在编译：

g ++ main.cpp -o Main -I / Users / wen / Projects / include / bigint

但它报告了一个致命错误，它无法找到该文件。我做对了吗？
$ b

main.cpp：4：10：致命错误：'BigIntegerLibrary.hh'文件未找到

解决方案

尝试

 ＃包含BigIntegerLibrary.hh
  

如果指定 #included 文件尖括号（ #include< includeFile.h> ）编译器会尝试在预定义位置找到它，而如果使用 #includeincludeFile 编译器首先尝试使用 -I 编译器选项指定的路径。

-I 编译器选项不能用于指定< ...> 文件的位置。

So basically I have some really simple code that includes <BigIntegerLibrary.hh> which resides in /Users/wen/Projects/include/bigint. I was compiling with this:

g++ main.cpp -o Main -I/Users/wen/Projects/include/bigint

but it reported a fatal error that it could not find the file. Am I doing it right? Thanks!

main.cpp:4:10: fatal error: 'BigIntegerLibrary.hh' file not found

解决方案

Try

#include "BigIntegerLibrary.hh"

If you specify the #included file with angle brackets (#include <includeFile.h>) the compiler will try to find it in a predefined location whereas if you use #include "includeFile" the compiler first tries the paths you specified with the -I compiler option.

The -I compiler option cannot be used to specify where the <...> files are.

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