Thread: Struc and Switch case

Bahh, sorry. Didn't see your post.

Alright, the code

Code:

char months[12][] = {...};

. . . will create an array of strings. The [] is just fancy notation for "determine the size of the array from the size of the initializer.".

Hope that helps slightly . . .

Oh another thing, you said I can declare my struct there as well.. so would I be able to do this?

Code:

struct month const char monthchars[12][] = { "january", february, march, april, may, june, july, august, september, october, november, december } // of course each one has the  "" around them.

//then the for loop

int i=0,x;

for(i=0;i<12;i++)
{
   if(!strcmp(month.monthEng, monthchars[i])
   return i;
}
  else
   printf("Type in lower case please...");
    return -1 //i had a question here, why return -1? what does that mean?

Ah, cool. Awesome, easier that way haha. Okay... this is cool, learning so much haha and getting help at the same time. Like killing two birds with one stone.

Originally Posted by dlwlsdn

Oh another thing, you said I can declare my struct there as well.. so would I be able to do this?

Code:

struct month const char monthchars[12][] = { "january", february, march, april, may, june, july, august, september, october, november, december } // of course each one has the  "" around them.

//then the for loop

int i=0,x;

for(i=0;i<12;i++)
{
   if(!strcmp(month.monthEng, monthchars[i])
   return i;
}
  else
   printf("Type in lower case please...");
    return -1 //i had a question here, why return -1? what does that mean?

Several problems that I can see. What I meant, is that you can pass your struct to the function instead of a string. Helps if you want to compare both the english and the spanish versions of the month string. (You also need a semicolon after the declaration . . .)

Basically, you're right. I say return -1 so you can check, in the place you called the function, to see if it had an error. I use -1, personally, since it's clearly not an array index. (Again, semicolon after the return statement. )

For example, if the function returns -1, then you know to loop back up and re-run the string entering code.

OoO return -1 is pretty handy , haha. Okay so when you say pass the struct to the function instead of a string.. do you mean something like...

Code:

struct month
{
  char monthEng[10];
  char monthSpan[11];
  int order;
  int numberDays;
}

int find_the_day(struct month *pointer1, char *user, int x) /* pointer1 is pointing to the struc, user is what the user typed in for month, and x is the day the user typed in for days. */
{
 .....
}

or am i totally off again?

Okay, nice. Alrighty. I understand this, took me a while to get to used to the pointer, totally forgot that -> is a pointer to the struct member haha. okay

well to answer the question, the reason why we pass x is so that it will "march" through the array of strings or technically ints to find the right one that matches it. So if its april, it will "march" through the array until it finds april.

or am i wrong? lol

Err . . . what I mean, is, why do you call it " . . . x is the day the user typed in for days."

AFAICT, you won't need that. Try this . . .

Code:

int find_the_number_of_days(struct month *pointer1, char *user) {
    int x;
    for(x = 0; x < 12; x ++) {
        if(strcmp(user, months[x]) == 0) {
            strcpy(pointer1->monthEnd, user);
            pointer1->numberDays = monthlengths[x];
        }
    }
    return -1;
}

And tell me what it isn't doing. (I made a mistake in the last one . . . declared the variable x twice. My bad.)

what it isn't doing... hmm... Well its not find the day, at least thats I think... because pointer1->numberDays = monthlengths[x], means that the numberDays is going to equal monthlengths[x], but x won't go beyond 11 and we need to get 31, 28(29), 30, 31, 30, 31, 31, 30, 31, 30, 31, 30, 31 or something like that..

really not sure...

You guys are too smart, haha. I understand now. Hmm... well I've been writing the code for a bit now, I'll post it once I'm finished and see what we can do if I run into something. Thank you guys very much for helping me and giving me your insights, its been very helpful to me You guys are too awesome for me. haha ^^