write a c++ code without using stack library and std

Exercise: Text File Write a program which reads a C++ source file and checks that all instances of brackets are balanced, that is, each('has a matching *)', and similarly for [] and {}, except for when they appear inside comments or strings. A line which contains an unbalanced bracket should be reported by a message such as the following sent to standard output: '{' on line 15 has no matching '}