C Programming Tutorial
In the C Programming Language, the sscanf function reads formatted output from an object pointed to by s.
Syntax
The syntax for the sscanf function in the C Language is:
int sscanf(const char *s, const char *format, ...);
Parameters or Arguments
stream
An array where the output will be read.
format
Describes the input as well as provides a placeholder to insert the formatted string. Here are a few examples:
| Format | Explanation | Example |
|---|---|---|
| %d | Reads an integer | 10 |
| %f | Reads a floating-point number in fixed decimal format | 10.500000 |
| %.1f | Reads a floating-point number with 1 digit after the decimal | 10.5 |
| %e | Reads a floating-point number in exponential (scientific notation) | 1.050000e+01 |
| %g | Reads a floating-point number in either fixed decimal or exponential format depending on the size of the number | 10.5 |
Returns
The sscanf function returns the number of characters that was read and stored. If an error occurs or end-of-file is reached before any items could be read, it will return EOF.
Required Header
In the C Language, the required header for the sscanf function is:
#include <stdio.h>
Applies To
In the C Language, the sscanf function can be used in the following versions:
- ANSI/ISO 9899-1990
