programming-examples/c/Recursion/C Program to find the First Capital Letter in a String using Recursion.c

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2019-11-15 12:59:38 +01:00
/*
* C Program to find the first capital letter in a string using
* Recursion
*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
char caps_check(char *);
int main()
{
char string[20], letter;
printf("Enter a string to find it's first capital letter: ");
scanf("%s", string);
letter = caps_check(string);
if (letter == 0)
{
printf("No capital letter is present in %s.\n", string);
}
else
{
printf("The first capital letter in %s is %c.\n", string, letter);
}
return 0;
}
char caps_check(char *string)
{
static int i = 0;
if (i < strlen(string))
{
if (isupper(string[i]))
{
return string[i];
}
else
{
i = i + 1;
return caps_check(string);
}
}
else return 0;
}