What can be used instead of scanf in C?

The most common ways of reading input are:

• using fgets with a fixed size, which is what is usually suggested, and.
• using fgetc , which may be useful if you’re only reading a single char .

What is the problem in using scanf () library function in case of string input define with example and solution?

On success, the function returns the number of variables filled. In case of an input failure, before any data could be successfully read, EOF is returned. Type specifiers that can be used in scanf: Take a step-up from those “Hello World” programs.

Why do we pass addresses to scanf () instead of the variable values?

The reason is, scanf() needs to modify values of a and b and but they are local to scanf(). So in order to reflect changes in the variable a and b of the main function, we need to pass addresses of them.

Is there an alternative for scanf() in C language?

There is no alternative for the scanf () in C language but there are some functions which can replace some of its functionality. They are gets () and getch (). But please note that the scanf () can read a wide range of values of different data types.

What is the use of scanf() function in C?

A more common use of the “formatted input” function in production code is to use sscanf (3) to load values from an already-parsed and (at least somewhat) error-checked input string into integers/floats/whatever. There is no alternative for the scanf () in C language but there are some functions which can replace some of its functionality.

Is printf or scanf really needed for this?

No, neither printf nor scanf is really needed for this. The obvious alternatives would be to read the input with something like getc or fgets and convert from characters to numbers with something like strtol.

What are some ANSI C options for converting input formats without scanf?

Since scanf is bad, what are some ANSI C options for converting input formats that scanf can usually handle (such as integers, floating-point numbers, and strings) without using scanf? The most common ways of reading input are: using fgetc, which may be useful if you’re only reading a single char.