atoi

#include <stdlib.h> //atoi's library
#include <stdio.h>

int main (void)
{
	string input = "9";
  
  	int output = atoi(input);
  
  	printf("%i", output);
  
  	//this will print out 9 as an int not a string
}

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4.13

Brian McMahon 135 points

                                    The C library function int atoi(const char *str) converts the 
string argument str to an integer (type int).

Note: It is used in case of string because in strings a number is
also stored as char  and we have to do Typecasting  form (string -&gt; int)

Thank you! 8

4.13 (8 Votes)

Youstay Igo 70 points

                                    int atoi (const char* str);

Thank you! 7

Macsimilian 100 points

                                    #include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;string.h&gt;

//CONVERT STRING TO INT

int main () {
   int val;
   char str[20];
   
   strcpy(str, &quot;98993489&quot;);
   val = atoi(str);
   printf(&quot;String value = %s, Int value = %d\n&quot;, str, val);

   strcpy(str, &quot;tutorialspoint.com&quot;);
   val = atoi(str);
   printf(&quot;String value = %s, Int value = %d\n&quot;, str, val);

   return(0);
}

Thank you! 8

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