C语言 header.h：即使源和头在同一目录中，也没有这样的文件或目录

header.h: No such file or directory even though source and header are in same directory

提问by BRHSM

I have made a header and a source but I don't know how to link them up. I looked it up on the web but the commands provided didn't work (or I wouldn't be here :) ).

我已经制作了标题和来源，但我不知道如何将它们链接起来。我在网上查了一下，但提供的命令不起作用（或者我不会在这里:)）。

To compile it (if you use GCC):

编译它（如果你使用 GCC）：

Header:

标题：

$ gcc -c whatever.h -o whatever.o

Source:

来源：

$ gcc -c sample.c -o sample.o

To link the files to create an executable file:

要链接文件以创建可执行文件：

$ gcc sample.o whatever.o -o sample

What did I do wrong. I am using geany for writing (compile error is here) but the commands are executed on a terminal in the same directory. can anybody give me the build commands for geany so whenever I want to include a header I can just compile and run?

我做错了什么。我正在使用 geany 进行写入（此处是编译错误），但命令是在同一目录中的终端上执行的。任何人都可以给我 geany 的构建命令，所以每当我想包含一个头文件时，我都可以编译和运行吗？

回答by Gopi

Good and the right way would be to

好的和正确的方法是

sample.c

样本.c

#include "header.h"

and compile

并编译

gcc sample.c -o ob

回答by Sourav Ghosh

Thumb Rule:

拇指规则：

• header files [.h] are for #includeing
• source files [.c] are for compiling and linking together to create the executable.

• 头文件 [ .h] 用于#includeing
• 源文件 [ .c] 用于编译和链接在一起以创建可执行文件。

Once you've #included your header file in a .cfile, there's no need to compile the header file and produce an object file.

一旦#include将头文件放入.c文件中，就无需编译头文件并生成目标文件。

FYI, you can check the effect of #include-ing the header file by running

仅供参考，您可以#include通过运行检查-ing 头文件的效果

gcc -E sample.c

and hope you'll understand why you need notcompile and link the header file separately.

希望您能理解为什么不需要单独编译和链接头文件。

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EDIT:

编辑：

if you have a sample.cand whatever.h, to produce and run the binary, simply do

如果您有sample.cand whatever.h，要生成和运行二进制文件，只需执行

• #include "whatever.h"in the top of sample.c

• gcc -o sample sample.c

• ./sample

• #include "whatever.h"在顶部 sample.c

• gcc -o sample sample.c

• ./sample