如何获取C中文件中所有函数的范围（即行号）？

Question

我想得到C中文件中所有函数的开始和结束行号。是否有人知道Linux中是否有一个易于使用的工具用于此目的？

Answer 1

$ ctags -x --c-kinds=f filename.c

This only gives the starting line of each function, but perhaps that is good enough.

If the code was written using fairly common conventions, the function should end with a single line containing } in the first column, so it is fairly easy to get the last line given the first:

awk 'NR > first && /^}$/ { print NR; exit }' first=$FIRST_LINE filename.c