Databases
StackOverflow2013
Postsdbo
POCode is adding extra characters
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCode is adding extra characters
    primarykey
    data
    text
    <p>I have a function that is supposed to read through a file, put the individual lines, as separate elements, into an array. Then it's supposed to go through the array and put certain elements at certain positions within the struct.</p> <p>I <em>almost</em> have it... When I go to print the struct to make sure it's getting everything right, extra characters are showing up!</p> <p>This is what is in the file:</p> <pre><code>123 pre 45 cse 67 345 ret 45 cse 56 </code></pre> <p>And this is what it's printing:</p> <pre><code>123 pre 45 cse C 67 345 ret 45 cse 8 56 </code></pre> <p>Here is the code:</p> <pre><code>#include &lt;stdio.h&gt; #include &lt;string.h&gt; #include &lt;stdlib.h&gt; struct students //Defining structure for students { int id; //Students ID Number char name[30]; //Students Name int age; //Students Age char dept[4]; //Studets Department int grade; //Students Grade }; int main() { struct students list[20]; FILE *f; char line[30]; char **temp = NULL; int num_righ = 0; int id5; int age5; int grade5; int i, k; f = fopen("records.txt", "r"); while(fgets(line, sizeof (line), f) != NULL) { if (line != NULL) { num_righ++; temp = (char**)realloc(temp, sizeof(char*) *num_righ); temp[num_righ - 1] = strdup(line); } } fclose(f); k = 0; i = 0; while (temp[i] != NULL) { id5 = atoi(temp[i]); list[k].id = id5; i++; strcpy(list[k].name, temp[i]); i++; age5 = atoi(temp[i]); list[k].age = age5; i++; strcpy(list[k].dept, temp[i]); i++; grade5 = atoi(temp[i]); list[k].grade = grade5; i++; k++; } for (i = 0; i &lt; k; i++) { printf("%d\n", list[i].id); printf("%s", list[i].name); printf("%d\n", list[i].age); printf("%s\n", list[i].dept); printf("%d\n", list[i].grade); } } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJoe DF
    1. USP M
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POCode is adding extra characters
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    2. VO
      singulars
      1. POCode is adding extra characters
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWhy not process each line as you read it, instead of copying it to a temp array? Your method takes twice as much memory with no obvious benefit...
      singulars
      1. POCode is adding extra characters
      1. USFloris
    2. CO`strcpy()` doesn't check if there is room. Use `strcpyn()`
      singulars
      1. POCode is adding extra characters
      1. USmike jones
    3. CO@Floris I have thought about how to do that and this was the best solution I could come up with (I'm still a newbie). How would you do it? Each line is a new element in the struct and after 5 lines it starts a new element within the array struct.
      singulars
      1. POCode is adding extra characters
      1. USP M
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload