Answers for "reverse the digits available in string. in c"

C

1

reverse string in c

// Reverse a string using pointers:

#include <stdio.h>

void rev(char *str)
{
	char *r_ptr = str;
	while (*(r_ptr + 1) != '\0')
		r_ptr++;

	while (r_ptr > str)
	{
		char tmp = *r_ptr;
		*r_ptr-- = *str;
		*str++ = tmp;
	}
}

void main()
{
	char s[] = "Hello World!";
	rev(s);
	puts(s); // Prints !dlroW olleH
}

Posted by: Guest on January-23-2022

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