Implement the substr() function in C.

Here is a C program which implements the substr() function in C.


int main()
{
char str1[] = "India";
char str2[25];

substr(str2, str1, 1, 3);
printf("\nstr2 : [%s]", str2);
return(0);
}

substr(char *dest, char *src, int position, int length)
{
dest[0]='\0';
strncat(dest, (src + position), length);
}




Here is another C program to do the same...


#include
#include

void mySubstr(char *dest, char *src, int position, int length);

int main()
{
char subStr[100];
char str[]="My Name Is Sweet";

mySubstr(subStr, str, 1, 5);
printf("\nstr = [%s]"
"\nsubStr = [%s]\n\n",
str, subStr);
getch();
return(0);
}

void mySubstr(char *dest, char *src, int position, int length)
{
while(length > 0)
{
*dest = *(src+position);
dest++;
src++;
length--;
}
}