#include <stdio.h>
int my_strlen(char *str)
{
int count = 0;
while (str[count] != '\0')
{
count++;
}
return count;
}
void my_strcpy(char *dest, char *src)
{
int i = 0;
while (src[i] != '\0')
{
dest[i] = src[i];
i++;
}
dest[i] = '\0';
}
void my_strcat(char *dest, char *src)
{
int i = 0, j = 0;
while (dest[i] != '\0')
{
i++;
}
while (src[j] != '\0')
{
dest[i] = src[j];
i++;
j++;
}
dest[i] = '\0';
}
int my_strcmp(char *str1, char *str2)
{
int i = 0;
while (str1[i] != '\0' && str2[i] != '\0')
{
if (str1[i] != str2[i])
{
return str1[i] - str2[i];
}
i++;
}
return str1[i] - str2[i];
}
void my_strrev(char *str)
{
int length = my_strlen(str);
int i;
char temp;
for (i = 0; i < length / 2; i++)
{
temp = str[i];
str[i] = str[length - 1 - i];
str[length - 1 - i] = temp;
}
}
int main()
{
char str1[100] = "Hello";
char str2[100] = "World";
char str3[100];
// Testing my_strlen
printf("Length: %d\n", my_strlen(str1));
// Testing my_strcpy
my_strcpy(str3, str1);
printf("Copied: %s\n", str3);
// Testing my_strcat
my_strcat(str1, str2);
printf("Concatenated: %s\n", str1);
// Testing my_strcmp
printf("Comparison: %d\n", my_strcmp("abc", "abd"));
// Testing my_strrev
my_strrev(str3);
printf("Reversed: %s\n", str3);
return 0;
}
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