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POfscanf crash while reading to struct in C
 

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  1. POfscanf crash while reading to struct in C
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    <p>I am developing some C app for my homework and I'm facing with annoying crash. Here's my code:</p> <pre><code>#include &lt;stdio.h&gt; #include &lt;stdlib.h&gt; //Constants //Available user choices enum commands {READ_LIST = 1, QUIT}; struct student { char* surname; char* name; char* group; }; typedef struct student Student; typedef Student * studentPtr; //Globals int studentCount = 0; //Function declarations void displayCommands(); void readList(); //Main function int main() { char enteredValue[999]; int thisCommand; int running = 1; while(running) { displayCommands(); scanf("%s", enteredValue); thisCommand = atoi(enteredValue); puts("\n----------------------------------------------"); switch(thisCommand) { case READ_LIST: readList(); break; case QUIT: running = 0; break; default: puts("Wrong command!"); break; } } system("pause"); return 0; } void displayCommands() { puts("\n---------------------------------------------"); puts("Enter a command number:"); printf("%d - Read students from file.\n", READ_LIST); printf("%d - Quit.\n", QUIT); puts("----------------------------------------------"); } void readList() { FILE *fp = NULL; fp = fopen("studs.txt", "r"); studentPtr newStudentPtr = malloc(sizeof(Student)); if(fp != NULL) { fscanf(fp, "%d", &amp;studentCount); if(newStudentPtr != NULL) { fscanf(fp, "%s %s %s", newStudentPtr-&gt;surname, newStudentPtr-&gt;name, newStudentPtr-&gt;group); } fclose(fp); } else { puts("Unable to open file for reading!"); } } </code></pre> <p>I basically try to read integer ant three strings into a structure. The program crashes when it's trying to read last line of the file.</p> <p>Any help, please? What mistakes am I making?</p> <p>Thanks in advance!</p>
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    1. USShahbaz
    1. USiNfas
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    1. COHave you tried a debugger?
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      1. USShahbaz
    2. COYou should allocate memory for the strings your read.
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      1. USBryan Olivier
 

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