如何找到声明命名空间变量的文件？

Question

I've got a program (LAMMPS, as it happens) spanning many .cpp/.h files, all of which share a namespace. There are many variables referenced in source files, but which are initialised in some other file.

Is there a way to find which file the variable is initialised in?

Perhaps this is better placed in superuser, as I reckon some clever find/grep work could do this, but I'm not even sure what I'd be looking for (I don't know what type the variables are, for example).

Answer 1

Go with 'ctags'. It will create a cross reference listing of all the symbols in your code. Of course find & grep will work too :)

Answer 2

There are some good cross-referencing tools out there. Look for LXR, Cxref or OpenGrok.

Answer 3

This is one of my VIM favourites:

• position the cursor on the identifier

• hit

  • [ i , or [ I
  • [ d , or [ D
  • Cw i
  • Cw d

• alternatively do the include search:

   :isearch /regex/ 

Be sure to set path to include your include paths:

:se path+=/usr/local/mylibrary/include