C library function - sscanf() usage

Reference link :https://www.runoob.com/cprogramming/c-function-sscanf.html

describe

C Library function int sscanf(const char *str, const char *format, ...) Read from string Format input .

Statement

Here is sscanf() Declaration of functions ：

int sscanf(const char *str, const char *format, ...)

Parameters

• str – This is a C character string , Is the source of data retrieved by the function .
• format – This is a C character string , Contains one or more of the following ： Space character 、 Non space characters and format specifier .

Return value

If it works , This function returns Number of successful matches and assignments . If you get to the end of the file or have a read error , Then return to EOF.

example

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
    
   int day, year;
   char weekday[20], month[20], dtm[100];

   strcpy( dtm, "Saturday March 25 1989" );
   sscanf( dtm, "%s %s %d %d", weekday, month, &day, &year );

   printf("%s %d, %d = %s\n", month, day, year, weekday );
    
   return(0);
}

Let's compile and run the above program , This will produce the following results ：

March 25, 1989 = Saturday