strcoll() is a built-in library function and is declared in <string.h> header file. This function compares the string pointed to by str1 with the one pointed by str2.The strcoll() function performs the comparison based on the rules of the current locale’s LC_COLLATE category.
Syntax:
int strcoll(const char *str1, const char *str2) function srtcoll() takes two strings as parameters and returns an integer value. Value Meaning less than zero str1 is less than str2 zero str1 is equal to str2 greater than zero str1 is greater than str2
- less than zero : When str1 is less than str2
// C program to illustrate strcoll()
#include <stdio.h>
#include <string.h>
int
main()
{
char
str1[10];
char
str2[10];
int
ret;
strcpy
(str1,
"geeksforgeeks"
);
strcpy
(str2,
"GEEKSFORGEEKS"
);
ret =
strcoll
(str1, str2);
if
(ret > 0) {
printf
(
"str1 is less than str2"
);
}
else
if
(ret < 0) {
printf
(
"str1 is greater than str2"
);
}
else
{
printf
(
"str1 is equal to str2"
);
}
return
(0);
}
Output:
str1 is less than str2
- greater than zero :when str1 is greater than str2
// C program to illustrate strcoll()
#include <stdio.h>
#include <string.h>
int
main()
{
char
str1[10];
char
str2[10];
int
ret;
strcpy
(str1,
"GEEKSFORGEEKS"
);
strcpy
(str2,
"geeksforgeeks"
);
ret =
strcoll
(str1, str2);
if
(ret > 0) {
printf
(
"str1 is less than str2"
);
}
else
if
(ret < 0) {
printf
(
"str1 is greater than str2"
);
}
else
{
printf
(
"str1 is equal to str2"
);
}
return
(0);
}
Output:
str1 is greater than str2
-
Is equal to zero : when str1 is equal to str2
// C program to illustrate strcoll()
#include <stdio.h>
#include <string.h>
int
main()
{
char
str1[10];
char
str2[10];
int
ret;
strcpy
(str1,
"GEEKSFORGEEKS"
);
strcpy
(str2,
"GEEKSFORGEEKS"
);
ret =
strcoll
(str1, str2);
if
(ret > 0) {
printf
(
"str1 is less than str2"
);
}
else
if
(ret < 0) {
printf
(
"str1 is greater than str2"
);
}
else
{
printf
(
"str1 is equal to str2"
);
}
return
(0);
}
Output:
str1 is equal to str2
Related Function : strcmp(), memcmp()
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