What is the use of sprintf() and sscanf() functions in C language?

CServer Side ProgrammingProgramming

The sscanf() function

It reads data from a character string.

Syntax

sscanf(string,formatspecifier,&var1,&var2,……..)

String refers to the char string to read from.

Format string refers to char string containing certain required formatting information.

Var1,var2 etc., represent the individual input data items.

For example, sscanf(string,"%d%d",&hours,&minutes);

The sprintf() function

This function is used to write data to a character string.

Syntax

sprintf(string,format specifier,&var1,&var2…….);

String refers to char string to write.

Format specifier refers to char string containing certain required formatting information.

Var1,var2 etc., represent the individual input data items.

Example − sprint(value,"cube of two is %d and square of two is %d\n", 2*2*2 ,2*2);

//value=cube of two is 8 and square of two is 4.

Example for sscanf() function

 Live Demo

#include<stdio.h>
int main(){
   char instring[]="Tutorials Point";
   char outstring[50],string1[10],string2[10];
   sscanf(instring,"%s %s",string1,string2);
   printf("%s\n",string1);
   printf("%s",instring);
   return 0;
}

Output

Tutorials
Tutorials Point

Example for sprintf() function

 Live Demo

#include <stdio.h>
int main(){
   char value[50];
   int p = 20, q = 30, r;
   r= p + q;
   sprintf(value, "adding two numbers %d and %d the result is %d", p, q,r);
   printf("%s", value);
   return 0;
}

Output

adding two numbers 20 and 30 the result is 50
raja
Published on 05-Mar-2021 08:20:20

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