while does this 2d char array (almost) work in C , but not even close in C++?

printing out a 2d char array, In C++ it just wacks the hell out of it, and comes up with its own abbreviations for what is in the array, and in C it chops off part of the last word in the first element being printed. NOT using element 0, btw.

What would be a better way to print out various sizes in an array like this?

Code:

---


#include <iostream>
using namespace std;

int main()
{
    char snacks[7] [30] = { " ", "Cracker Jacks","Gummy Bears","Lemon Heads",
                            "Skittles","Snickers","Milky Way"};

 
size_t count = 1, col = 0;

for ( ; count < 7 ; count++)
{
    for (; col != '\n'; col++)
    {
        cout <<snacks[count][col];
        col++;
    }
    cout<<endl;
    col = 0;
}
    //same code compiled in C as well
    //gets same output
    printf("\ntime two\n"
    "C code\n\n");
   
    count = 1, col = 0;
   
    for ( ; count < 7 ; count++)
    {
        for (; col != '\n'; col++)
        {
            printf("%c", snacks[count][col]); 
        }
        printf("\n");
        col = 0; //reset
    }

return 0;
}

---

Results

Code:

---

userx@slackwhere:~/bin
$ ./temp
CakrJ
GmyBa
LmnHa
Site
Sikr
MlyWy

time two
C code

Cracker Ja
Gummy Bear
Lemon Head
Skittles
Snickers
Milky Way

---

Well I'd say the C++ version should be more like:

Code:

---

...
    std::vector<std::string> snacks= { "Cracker Jacks", "Gummy Bears", "Lemon Heads",
                            "Skittles", "Snickers", "Milky Way"
                          };

    for(auto& itr : snacks)
    {
        for(auto& it : itr)
            std::cout << it;
        std::cout << '\n';
    }
...

---

And the C version should be more like:

Code:

---

...
#define NUM_ELEMENTS 6

    char snack[NUM_ELEMENTS][30] = { "Cracker Jacks", "Gummy Bears", "Lemon Heads",
                            "Skittles", "Snickers", "Milky Way"
                          };

    for(size_t counter = 0; counter < NUM_ELEMENTS; ++counter)
    {
        for(size_t len = 0; len < strlen(snacks[counter]); ++len)
          printf("%c",snacks[counter][len]);
        printf( "\n");
    }

---

By the way for someone who considers himself an expert your code contains quite a few beginner mistakes.

...........

yeah < > I had to switch gears,

Code:

---

#include <iostream>
#include <vector>

using namespace std;

int main()
{
    char snacks[7] [30] = { " ", "Cracker Jacks","Gummy Bears","Lemon Heads",
                            "Skittles","Snickers","Milky Way"};
   
    vector < string > snackos =
    { " ", "Cracker Jacks","Gummy Bears","Lemon Heads",
        "Skittles","Snickers","Milky Way"};

 
size_t count = 1, col = 0;

for ( ; count < 7 ; count++)
    cout <<snackos[count]<<endl; 
       
 
    //same code compiled in C as well
    //gets same output
    printf("\ntime two\n"
    "C code\n\n");
   
    count = 1, col = 0;
   
    for ( ; count < 7 ; count++)
    {
        for (; col != '\n'; col++)
        {
            printf("%c", snacks[count][col]); 
        }
        printf("\n");
        col = 0; //reset
    }

return 0;
}

---

Quote:

---

Originally Posted by jimblumberg

By the way for someone who considers himself an expert your code contains quite a few beginner mistakes.

---

that is an assumption on your part, period.

go look at every post in here Not one time have I ever made that claim, that I am an expert nor to I consider myself an expert in programming.
I have actually set the record straight in one post for the record. and No I am not going to look for it.

Code:

---

$ ./temp
Cracker Jacks
Gummy Bears
Lemon Heads
Skittles
Snickers
Milky Way

time two
C code

Cracker Ja
Gummy Bear
Lemon Head
Skittles
Snickers
Milky Way

---

Do you realize that your C++ version is no longer doing the same thing as the C version, even if you fix the logic errors in the C version?

I was going to add something but it appears bx knows everything.

Quote:

---

Originally Posted by Salem

I was going to add something but it appears bx knows everything.

---

appearances can be deceiving. :D :D

Code:

---

for ( ; count < 7 ; count++)
{
    for (; col != '\n'; col++)
    {

---

Perhaps you meant to make the middle term snacks[count][col] != '\0' considering how your data looks. col != '\n'; just means col != 10 in this context.

Quote:

---

printing out a 2d char array, In C++ it just wacks the hell out of it, and comes up with its own abbreviations for what is in the array, and in C it chops off part of the last word in the first element being printed. NOT using element 0, btw.

---

Before you blame the programming language, remember PEBCAC

Quote:

---

Originally Posted by jimblumberg

Do you realize that your C++ version is no longer doing the same thing as the C version, even if you fix the logic errors in the C version?

---

I have no idea how it works under the hood. I only know it is now acting like a 1d array because one no longer has to reference both whatever them [ ] <<--- are called.

Code:

---


#include <iostream>
#include <vector>

using namespace std;

int main()
{
    vector < string > snackos =
        { " ", "Cracker Jacks","Gummy Bears","Lemon Heads",
        "Skittles","Snickers","Milky Way"};
int count = 1;

for ( ; count < 7 ; count++)
    cout <<snackos[count]<<endl; 
    cout<<"\n"<<snackos[4]<<endl;

    //last line prints out the 5th element starting from  zero,
    // after the loop has ened.
    //Is it properly placed within the code?
    // Some would say no. But the compiler won't complain about it as
    //much as some humans might.
return 0;
}

---

that much I know.

Quote:

---

I have no idea how it works under the hood.

---

Well you finally admit that you don't know something, amazing.

The C++ version is now printing strings, the C version is trying to print characters. I really don't understand why you can't see the difference.

Quote:

---

//Is it properly placed within the code?

---

As long as you realize that the indentation is misleading, yes, otherwise no.

Quote:

---

// Some would say no. But the compiler won't complain about it as
//much as some humans might.

---

Actually most modern compilers can warn you about the misleading indentation, if you tell them to.

Quote:

---

that much I know.

---

Not much then.

Quote:

---

As long as you realize that the indentation is misleading, yes, otherwise no.

---

Yes, it is a ........ing eyesore (every time). But I found that people who don't care about structure/order never improve in this regard. It's deeply ingrained like one's preference of vanilla or chocolate and logical arguments have little effect.

Quote:

---

Originally Posted by jimblumberg

Well you finally admit that you don't know something, amazing.

---

whatever.... never said I knew everything, that was your ill guided mind thinking

Quote:

---

Originally Posted by jimblumberg

The C++ version is now printing strings, the C version is trying to print characters. I really don't understand why you can't see the difference.

---

technicalities, cheep shot.
..

Quote:

---

Originally Posted by jimblumberg

As long as you realize that the indentation is misleading, yes, otherwise no.

---

yep

Quote:

---

Originally Posted by jimblumberg

Actually most modern compilers can warn you about the misleading indentation, if you tell them to.

---

yep

Quote:

---

Originally Posted by jimblumberg

Not much then.

---

nope, I know a lot about some stuff and some about other stuff and nothing about what I do not know about, but I do not know everything. My mind is not big enough to hold all of that information.

just like you.

I never claimed to be a know it all, maybe that was just projecting your self image on to me. it is a subconscious action you know.

So no, you have not bruised my ego any, none whatsoever by that last remark.

though I do know enough about programming to write what I need to write to get done what I need to get done in my program I maintain.

Bjarne Stroustrup that said on being an expert in C++. that'd take more than a lifetime. it is better to just take it one piece at a time and learn how to be good at that. , paraphrased

Maybe you see yourself as an expert but I do not.
.

Bored of your constant ........y attitude whenever anyone tries to help your sorry ass.
........ off.

There, I've put you out of our misery.