Struct array - char array

This is a discussion on Struct array - char array within the C Programming forums, part of the General Programming Boards category; Hello, I am trying to run the following code (on a NDS gameconsole) but it doesn't run for some reason. ...

  1. #1
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    Struct array - char array

    Hello,

    I am trying to run the following code (on a NDS gameconsole) but it doesn't run for some reason. Can anyone tell me what i am doing wrong?

    Code:
    	struct node
    	{  	char title[26];
    		char description[201];       
    		char datum[21];
    	};
    
    	struct node nodes[10];
    	
    	nodes[0].title[0]='t';
    	nodes[0].title[1]='i';
    	nodes[0].title[2]='t';
    	nodes[0].title[3]='l';
    	nodes[0].title[4]='e';
    	nodes[0].title[5]='1';
    	nodes[0].title[6]='\0';
    	nodes[1].title[0]='t';
    	nodes[1].title[1]='i';
    	nodes[1].title[2]='t';
    	nodes[1].title[3]='l';
    	nodes[1].title[4]='e';
    	nodes[1].title[5]='2';
    	nodes[1].title[6]='\0';
    	
    	sprintf("%s\n",nodes[0].title);
    	sprintf("%s\n",nodes[1].title);
    Thanks

    Veda88

  2. #2
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    Oh damn, 3 times, bad internet connection here....

  3. #3
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    I'm not familiar with your game console, but C programs always need a main() function, and usually the line, #include <stdio.h>, before said main().

  4. #4
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    The code shown in the first post is just a snippet. I have included the stdio.h, stdlib.h and some nds specific header files.
    Also the main function is present as expected:
    int main(void) {

  5. #5
    and the Hat of Guessing tabstop's Avatar
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    So, sprintf is supposed to print to a string, not the screen, isn't it? Why aren't you getting compile errors about mismatched types? (Edit: Well, warnings about const things are always a bit wonky, I suppose. But the first string is where the answer is supposed to go, and the second string is the format string.)
    Last edited by tabstop; 09-25-2009 at 08:32 AM.

  6. #6
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    Hello,
    I changed the sprintf to printf, but it didn't change a thing. It is still just printing nothing

  7. #7
    and the Hat of Guessing tabstop's Avatar
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    Which brings us to point #2. Not familiar with NDS, but: is printf the normal method for putting things on a DS screen? It's possible, I suppose, but I wouldn't expect it.

  8. #8
    Dr Dipshi++ mike_g's Avatar
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    Are you compiling for ARM? If not you will need a devkit for it. I have a DS and want to do some coding for it, but I never seem to get the time. Once you have a devkit it would probably be worth learning to use a library such as palib (tutorial on site), which has function to blit text to the screen, draw sprites and handle input including simple pattern recognition for with the stylus.

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