Trim the unwanted blank from strings.

#include <stdio.h>
#include <ctype.h>
#include <string.h>

typedef  int bool;
#define false 0
#define true 1

/* del the blank characters from string  */
void deblank(char string[])
{
        char *string_temp = string;
        int i, j;
        for (i = 0, j = 0; string_temp[i] != '\0'; )
        {
                string[j++] = string_temp[i++];
                while (string_temp[i] == ' ')
                {
                        i++;
                }
        }
        string[j] = '\0';
}

void deblank2(char string[])
{
    char *str=string;
    int i=0,j=0;

    while(str[i]!='\0')
    {
        if(isspace(str[i])&&isspace(str[i+1]))//str[i] is space
        {
            string[j]=str[i];
            i++;
        }
        else
        {
            string[j]=str[i];
        }
        j++;
        i++;
    }
    string[j]='\0';
}
/* The Best One */
void trimStr(char *src)
{
    char *p = src;
//    char tmp[]={0};
    char *tmp = src;
    bool flag = false;

    int i;
    if(!*p)
    {
        printf("Null string\n");
        return;
    }

    for(i = 0; *p; p++)
    {
        if(*p != ' ' )
        {
            tmp[i++] = *p;
            flag = true;
        }
        else if(flag)
        {
            tmp[i++]=*p;
            flag = false;
        }
        else
        {
            continue;
        }

    }

    tmp[i] = '\0';
    strcpy(src,tmp);
}

void trim(char *s)
{
    char *p;
    for(p = s; *s; s ++)
    {
        if(*s != ' ')
        {
            *p ++ = *s;
        }
    }

}

int main()
{
    char s[] = "That      is     a  kind    of    beatiful         dunk!   ";
    char ds[]={0};
    printf("Before del blank:\n");
    printf("%s\n",s);

    //deblank(s);
    //deblank2(s);
    trimStr(s);
//    trim(s);

    printf("After del blank:\n");
    printf("%s\n",s);

    return 0;
}