Strings in C Language

String is an array of characters and terminated by a null character (\0). The null character is not placed by the user, the compiler places it at the end of string automatically.

The difference between an array and a string is that the compiler does not place null character at the end of array while in string, compiler places null character.

Here is the syntax of string in C language,

char myStr[size];

Here,

myStr: The string

size: Set the size of string

Initialize string in C language like show below −

char myStr[size] = “string”;
char myStr[size] = { ‘s’,’t’,’r’,’i’,’n’,’g’,’\0’ };

The following table displays functions of string in C language.

Here is an example of string in C language,

Example

 Live Demo

#include <stdio.h>
#include <string.h>
int main () {
   char s1[10] = "Hello";
   char s2[10] = "World";
   int len, com ;
   strcpy(s1, s2);
   printf("Strings s1 and s2 : %s\t%s
", s1, s2 );
   strcat( s1, s2);
   printf("String concatenation: %s
", s1 );
   len = strlen(s1);
   printf("Length of string s1 : %d
", len );
   com = strcmp(s1,s2);
   printf("Comparison of strings s1 and s2 : %d
", com );
   return 0;
}

Output

Strings s1 and s2 : WorldWorld
String concatenation: WorldWorld
Length of string s1 : 10
Comparison of strings s1 and s2 : 87

Samual Sam

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Updated on: 24-Jun-2020

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