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The c/c++ library strxfrm() transform the characters of source string into current locale and place them in destination string.
For that LC_COLLATE category is used which is defined in locale.h . strxfrm() function performs transformation in such a way that result of strcmp on two strings is the same as result of strcoll on two original strings.
Syntax:

size_t strxfrm(char *str1, const char *str2, size_t num);
parameters:
str1 :is the string which receives 
num characters of transformed string. 
str2 : is the string which is to be transformed
num  :is the maximum number of characters
which to be copied into str1.

Examples :

Input : 'geeksforgeeks'
Output : 13

// C program to demonstrate 
// strxfrm() 
#include <stdio.h> 
#include <string.h> 
int main() 
{ 
    char src[10], dest[10]; 
    int len; 
    strcpy(src, "geeksforgeeks"); 
    len = strxfrm(dest, src, 10); 
    printf("Length of string %s is: %d", dest, len); 
  
    return (0); 
} 

OUTPUT:

Length of string geeksforgeeks is: 13

Example 2 :

Input : 'hello geeksforgeeks'
Output : 20 // in this example it count space also

// C program to demonstrate 
// strxfrm() 
#include <stdio.h> 
#include <string.h> 
int main() 
{ 
    char src[20], dest[200]; 
    int len; 
    strcpy(src, " hello geeksforgeeks"); 
    len = strxfrm(dest, src, 20); 
    printf("Length of string %s is: %d", dest, len); 
  
    return (0); 
} 

OUTPUT:

Length of string  hello geeksforgeeks is: 20

Example 3 :

// C program to demonstrate 
// strxfrm() 
#include <iostream> 
#include <string.h> 
using namespace std; 
int main() 
{ 
    char str2[30] = "Hello geeksforgeeks"; 
    char str1[30]; 
    cout << strxfrm(str1, str2, 4) << endl; 
    cout << str1 << endl; 
    cout << str2 << endl; 
    return 0; 
} 

OUTPUT:

19
Hell
Hello geeksforgeeks

This article is contributed by Shivani Baghel . If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

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strxfrm() in C/C++

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