how can count how many variables from file in c code and also find how many function

[moronjoe]

how can count how many variables from file in c code and how many
function in c file please give answer write a c/c++ code
thanks

[weaknessforcats]

Are you trying to write a compiler? This is not a simple problem. If this is a homework problem, do you have a particular C file you are supposed to be using?

[moronjoe]

no , i read a file than count how many function in there but i could not <C file>

[donbock]

It is easier to parse a compiled object file than a C source file.
It is even easier to use a language like Perl to process the output of an object file parsing tool such as nm.

Is a list of symbols sufficient or do you need to distinguish function and variable names?
Is a list of global names sufficient or do you need to also get the local (static) names?

If you must parse a source file, are you allowed to enforce a no-typedefs rule? Typedefs complicate the source-parsing logic.

Can you parse the output of the C preprocessor or are you required to recognize and deal with macro definitions, macro references, conditional compilation, etc?