C scanf function
Description
The scanf function reads information from a standard input device (keyboard).
scanf function has the following general format.
Syntax
scanf("conversion specifier", variable);Parameter
The conversion specifier argument tells scanf
how to convert the incoming data.
scanf starts with a string argument
and may contain additional arguments.
Additional arguments must be pointers.
scanf returns the number of successful inputs.
Format
| Conversion Character | Displays Argument (Variable's Contents) As |
|---|---|
| %c | Single character |
| %d | Signed decimal integer (int) |
| %e | Signed floating-point value in E notation |
| %f | Signed floating-point value (float) |
| %g | Signed value in %e or %f format, whichever is shorter |
| %hd | (signed) short int |
| %hu | unsigned short int |
| %i | Signed decimal integer (int) |
| %ld | (signed) long int |
| %o | Unsigned octal (base 8) integer (int) |
| %s | String of text |
| %u | Unsigned decimal integer (int) |
| %lu | unsigned long int |
| %x | Unsigned hexadecimal (base 16) integer (int) |