void delchar(char* str, char ch)
{
        if(str == 0 || *str == 0) return;
 
        char* ptr = str;
        while(*ptr != 0) if(*ptr == ch) break; else ptr++;
 
        while(1)
        {
                char c = *ptr;
                *ptr = ptr[1];
                ptr[1] = c;
                if(*ptr == 0) return; else ptr++;
        }
}

void delallchar(char* str, char ch)
{
	if(str == 0 || *str == 0) return;
	char* ptr = str;
	while(*ptr != 0) 
	{
		if(*ptr == ch)
		{
			char* cstr = ptr;
			while(1)
			{
				char c = *cstr;
				*cstr = cstr[1];
				cstr[1] = c;
				if(*cstr++ == 0) break;
			}

			continue;
		}

		ptr++;
	}
}