/*************************************************************************

    > File Name: test.c

    > Author: ToLiMit

    > Mail: 348958453@qq.com

    > Created Time: Sun 04 Jan 2015 06:20:05 PM PST

 ************************************************************************/

#include<stdio.h>

void delete_str_char (char * main_str, char * sub_str)

{

    if ((main_str == NULL) || (sub_str == NULL))

        return;

    char * sub_index = sub_str;

    char * main_index = main_str;

    char bitmap[] = {};

    char * str = (char *)malloc (strlen (str) + );

    char * index = str;

    memset (str, , strlen (str) + );

    while (*sub_index != '\0') {

        char suffix = ((*sub_index) / ) - ;

        char offset = (*sub_index) % ;

        bitmap[suffix] |= (0x1 << ( - offset));

        sub_index++;

    }

    while (*main_index != '\0') {

        char suffix = ((*main_index) / ) - ;

        char offset = (*main_index) % ;

        if ((bitmap[suffix] & (0x1 << ( - offset))) == ) {

            *index = *main_index;

            index++;

        }

        main_index++;

    }

    *index = '\0';

    memcpy (main_str, str, strlen (str) + );

    free (str);

    return;

}

int main (int argc, char * argv[])

{

    char test[] = "aabcdaaaaabcaacb";

    delete_str_char (test, "bcd");

    printf ("%s\n", test);

    return ;

}