raw_input with Cpp

raw_input

#include<stdlib.h>
char * input(void)
{
    register char ch, * string = (char*)calloc(sizeof(char), sizeof(int));
    for (register int count = 0; (string[count] = getchar()) != '\n' || (string[count] = 0); string = (char*)realloc(string, sizeof(char)*++count + sizeof(int)));
    return string;
}