g++ 命令不返回这样的文件或目录

Question

I am new to programming; I'm starting a new job and I have to resume what the fellow before me did.

So I have to run a program called test.cpp in C++. This code contains a header called misc.hpp located in a subfolder of where test.cpp is called include.

When I open the terminal from where test.cpp is and run g++ test.cpp it tells me that:

test.cpp:4:19: fatal error: misc.hpp: No such file or directory.

I also tried the g++ test.cpp -I include/misc.cpp but same thing

Could you please help me?

Answer 1

The -I (upper-case i) option is to add a directory to search for header files. It's not for including source files.

So if the header file is include/misc.hpp then you should do

g++ test.cpp -Iinclude

Answer 2

-I include/misc.cpp doesn't work because:

• The file is misc.hpp , not misc.cpp
• You do not include files like this
• -I is for include directories

So:

g++ test.cpp -I include