Respuesta :
#include <fstream> is the necessary preprocessor directive to enable the use of file stream objects.
In computer science, a preprocessor (or precompiler) is a program that tactics its input records to provide output that is used as entering to any other application. The output is stated to be a preprocessed shape of the entered data, that's often utilized by a few subsequent packages like compilers.
The C preprocessor is a macro processor this is used routinely by using the C compiler to transform your application earlier than the actual compilation. It's far known as a macro processor as it lets you define macros, which are brief abbreviations for longer constructs.
We can consider a preprocessor as a compilation technique, which runs whilst the developer runs this system. It is a pre-manner of execution of software with the use of c/c++ language. To initialize a system of preprocessor instructions, it's mandated to define with a hashtag (#).
Learn more about software here: https://brainly.com/question/4593389
#SPJ4
