add goto_header_associate_cpp_h to fix issue #2

README.md

@@ -110,6 +110,11 @@ Put the following lines in your .vimrc to map gh to switch between .c/.h or .cpp
 nnoremap gh :GotoHeaderSwitch <CR>
 ```
 
+If you need to switch between a ".cpp" file and a ".h" file (like in #2) add this to your .vimrc
+```vim
+let g:goto_header_associate_cpp_h = 1
+```
+
 Now you'll just need to press F12 on a line like one of those and it will open the corresponding file in a new tab
 ```c
 #include <stdio.h>

autoload/goto_header.vim

@@ -29,25 +29,20 @@ function! s:CheckConfigVals()
     if !exists("g:goto_header_includes_dirs")
         let g:goto_header_includes_dirs = [".", "/usr/include", "..", "~"]
     endif
-    if !exists('g:goto_header_use_find')
-        let g:goto_header_use_find = 0
-    endif
     if !exists('g:goto_header_excludes_dirs')
         let g:goto_header_excludes_dirs = []
     endif
-    if !exists('g:goto_header_open_in_new_tab')
-        let g:goto_header_open_in_new_tab = 0
-    endif
     if !exists("g:goto_header_search_flags")
         if g:goto_header_use_find
             let g:goto_header_search_flags = "-type f"
         else
             let g:goto_header_search_flags = "-t f -s"
         endif
     endif
-    if !exists('g:goto_header_use_shorter_path')
-        let g:goto_header_use_shorter_path = 0
-    endif
+    let g:goto_header_use_find = get(g:, 'goto_header_use_find')
+    let g:goto_header_open_in_new_tab = get(g:, 'goto_header_open_in_new_tab')
+    let g:goto_header_use_shorter_path = get(g:, 'goto_header_use_shorter_path')
+    let g:goto_header_associate_cpp_h = get(g:, 'goto_header_associate_cpp_h')
 endfunction
 
 function! s:OpenFile(fp)
@@ -175,14 +170,15 @@ function! goto_header#Direct()
 endfunction
 
 function! goto_header#Switch()
+    call s:CheckConfigVals()
     let filename = expand('%:t')
     let found = 0
     let s:path = ""
     let extensions_dict = {
-                \        ".cpp" : ".hpp",
+                \        ".cpp" : (g:goto_header_associate_cpp_h) ? ".h" : ".hpp",
+                \        ".hpp" : ".cpp",
                 \        ".c" : ".h",
                 \        ".h" : ".c",
-                \        ".hpp" : ".cpp",
                 \}
 
     for key in keys(extensions_dict)