Entering strings into a array
Sat, 2012-08-18 14:56
I would like to work on a project that allows me to enter a string of 12 char into an array. I've done the char user input part to scanf. Since I don't know how many entries will be made I think I need to incorporate calloc or malloc, but can't seem to find examples I can deconstruct to create program. Thanks for the help.
#include <stdio.h>
int main(int argc, char *argv[]) {
char CAM [13];
printf ("Enter CAM?");
scanf("%s", CAM);
printf("\n CAM entered \n");
printf("%s", CAM);
return (0);
}
Sun, 2012-08-19 12:29
#2
i think you should use if statement to check how many characters are entered if more or less then 13 return false or this might be helpful for you http://www.cplusplus.com/reference/clibrary/cstring/strlen/
Sun, 2012-08-19 22:13
#3
Alder thanks for the reply.
Thanks for the help with putting the code together. Now that I see the direction I should be heading. I was able to modify the code to create a second break sequence that next goes into a search function of first array and places new cam strings into a second CAMArray2. After getting through the coding errors (3hours) I realized the strcmp function wasn't the correct thing to use. I seemed to only get exact matches when I entered the string in the same order as I originally entered int the CAMArray input. I need to learn more about the qsort function.
I've read alot of your posts. How long have you been working with C?
Tue, 2012-08-21 19:10
#4
I've read alot of your posts. How long have you been working with C?
I started learning it on Wibit about a month ago. Before that, I had a C book "C in 24 hours" that I partially went through. But I have a year of C++ and a few years of C#/Java under my belt. I'm still getting used to memory management :P
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Are you trying to make an array of strings, where each string (CAM) is an array of 12 characters? In other words:
CAMArray[0] ---> "123456789abc"
CAMArray[1] ---> "0987654321zy"
...etc.
If that's what you're wanting to do, you'll want to use a char**. If you want to hard-code it without worrying about memory allocation, you could do char[][] and define a const int for the max size. For example: http://paste.ubuntu.com/1154516/
That might not be safe, though, and assumes a lot about the input. I dunno. By the way, return is not a function, so you don't need to put the parenthesis ((0)) after it. "return 0" is fine. Hope that helps somewhat.