What is the problem of taking input of strings using scanf () function?

The problem with above code is scanf() reads an integer and leaves a newline character in buffer. So fgets() only reads newline and the string “test” is ignored by the program. The similar problem occurs when scanf() is used in a loop.

Which header file should we include for using gets function?

gets is a function in the C standard library, declared in the header file stdio. h , that reads a line from the standard input and stores it in a buffer provided by the caller.

Which header file should be included to use gets () and puts () functions?

The gets() and puts() are declared in the header file stdio. h. Both the functions are involved in the input/output operations of the strings.

Do I need to include stdio in the C program?

However in function.c you do need to include it (stdio.h). This is because you are using the function printf in the code. Read more about the C preprocessor (and also here ).

When does the gets() function stop in C programming?

It stops when either the newline character is read or when the end-of-file is reached, whichever comes first. Following is the declaration for gets () function. str − This is the pointer to an array of chars where the C string is stored.

What is the declaration for gets() function in C language?

Following is the declaration for gets () function. str − This is the pointer to an array of chars where the C string is stored. This function returns str on success, and NULL on error or when end of file occurs, while no characters have been read.

What is wrong with gets() in C++?

The problem with gets () is that it returns as many characters as the user enters – you as the caller have no control over this. So you might allocate 80 characters, the user may type 100 characters and the last 20 will be written off the end of the memory you have allocated, stomping on who knows what.