Text Input - scanf


        #include <stdio.h>
        

        int scanf(const char *format, ...);

Syntax is very similar to printf (see man 3 scanf for more information).

Part of standard library, not built into language (must include stdio.h)
Syntax: scanf (<format>, var1, var2, ...);
<format> is a string defining how to expect input. The first % applies to the first variable, the second % to the second, and so on.
Example format codes
- %d, %ld - integer, long integer
- %f, %lf - floating point, double

Variables for input must be passed to scanf by reference so the value can be modified by the function

Example

          int i;
          float f;

          printf ( "Enter an integer and a float: " );
          scanf ( "%d %f", &i, &f );