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    <p><code>infoArray</code> is declared a <code>int</code>. It does not provide structure elements like <code>infoArray.studentID</code>. That causes the compiler to complain <em>... something not a structure or union.</em></p> <p><code>infoArray [students];</code> with <code>int students = 0;</code> is questionable too.</p> <p>You'd get (rewritten to suit the need. However, with some open questions):</p> <pre><code>#include &lt;stdio.h&gt; #include &lt;stdlib.h&gt; #define MAX_STUDENTS 200 typedef struct { int studentID; int year; int month; int day; int phone; int end; } info_TYPE; int main (void) { info_TYPE infoArray [MAX_STUDENTS]; int students = 0; while (infoArray[students].end != -1) { printf("Enter student information (ID, day, month, year, phone)\n"); printf("Enter -1 following the phone number to end the process to continue enter 0\n"); scanf("%d %d %d %d %d %d", &amp;infoArray[students].studentID, &amp;infoArray[students].day, &amp;infoArray[students].month, &amp;infoArray[students].year, &amp;infoArray[students].phone, &amp;infoArray[students].end); students = students + 1; if (students &gt;= MAX_STUDENTS) break; } if (infoArray[students - 1].end = -1) printf("You entered %d student(s)\n", students); printf("Enter Student ID", infoArray[students - 1].studentID); // no idea what this line was for, presumably another previous attempt. scanf("%d", infoArray[students - 1].studentID); // getting tired to follow the speed at which the question is modified, presumably last edit here! } </code></pre>
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    1. POHow do you assign values entered in a structure to an array?
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    1. COThis didn't really help me because I still need to store the info entered into an array. So when I do this trying to use malloc i get an error telling me studentID is something not of a structure or union.
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    2. CO@user2172993: I've modified the code that results are stored in infoArray.
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    3. COAnyway info[students] is out of bounds , if you want to access last cell of this array use info[students-1] since arrays in c starts ftom 0. What you would to do is to run on for(I=0 ;I<students;I++) , and the assign the input in to info[I]
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