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PO.exe crashes when I enter a vaue for &records[*rCount].source
 

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  1. PO.exe crashes when I enter a vaue for &records[*rCount].source
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    <p>Update <em>*</em></p> <p>I have now tried to return something from the function and still the .exe crashes! I am quite new to c so sorry if I am been a bit thick at not spotting why.</p> <pre><code>struct packet* addRecord(int *rCount, struct packet *records){ int valid = 0; //used to indicated valid input int length = 0; //used to store the string lengths int i = 0; //used in the for loops char dataTest[51]; //temporary storage of input to be checked before adding to records do{ puts("What is the source of this packet?: "); if(scanf(" %c", &amp;records[*rCount].source) == 1){ //if correct insert the record at the index valid=1; //determined by rCount(the current record count passed to addRecord } else{ valid = 0; getchar(); puts("\nNot a valid input"); } }while(valid!=1); do{ puts("What is the destination of this packet?: "); if(scanf(" %c", &amp;records[*rCount].destination) == 1) { valid = 1; } else { valid = 1; getchar(); puts("\nNot a valid input"); } } while(valid!=1); records = realloc(records,(*rCount+1)*sizeof(struct packet)); return records; </code></pre> <p>}</p> <p>So I have got this code to work, but when I enter a value for &amp;records[*rCount].source, the .exe crashes. I have been looking at this code for an hour now and cannot find the broken link, but I feel like it's something simple.</p> <p>Here is the little bit of code that I feel like is not working properly.</p> <p>Also can someone please explain what == 1 means in the if statement, I've kinda just hacked this code together. Thanks</p> <pre><code>do{ puts("What is the source of this packet?: "); if(scanf("%i", &amp;records[*rCount].source) == 1){ //if correct insert the record at the index valid=1; //determined by rCount(the current record count passed to addRecord } else{ valid = 0; getchar(); puts("\nNot a valid input"); } }while(valid!=1); </code></pre> <p>Full code:</p> <pre><code>#include &lt;stdio.h&gt; #include &lt;stdlib.h&gt; #include &lt;string.h&gt; #include &lt;ctype.h&gt; struct packet{ // declare structure for packet creation int source; int destination; int type; int port; char data[51]; }; //function prototypes void listRecords(int, struct packet*); struct packet* addRecord(int*, struct packet*); void save(int, struct packet*); struct packet* open(int*, struct packet*); int main () { int recordCount = 0; char choice; struct packet *records; struct packet *temp; do { printf("\nWhat would you like to do?\n"); printf("\t1) Add a packet.\n"); //---------------------// printf("\t2) List all packets.\n"); //---------------------// printf("\t3) Save packets.\n"); //---------MENU--------// printf("\t4) Clear all packets.\n"); //---------------------// printf("\t5) Quit the programme.\n"); //---------------------// scanf("%i", &amp;choice); // scan user input and put the entry into variable "choice" if(choice == '/n') scanf("%i", &amp;choice); switch(choice) { case 1: system("cls"); records = addRecord(&amp;recordCount, records); break; case 2: system("cls"); break; case 3: system("cls"); break; case 4: system("cls"); break; default: system("cls"); printf("%i was not a valid option\n", choice); break; } } while (choice != 5); return 0; } struct packet* addRecord(int *rCount, struct packet *records){ int valid = 0; //used to indicated valid input int length = 0; //used to store the string lengths int i = 0; //used in the for loops char dataTest[51]; //temporary storage of input to be checked before adding to records do{ puts("What is the source of this packet?: "); if(scanf("%i", &amp;records[*rCount].source) == 1){ //if correct insert the record at the index valid=1; //determined by rCount(the current record count passed to addRecord } else{ valid = 0; getchar(); puts("\nNot a valid input"); } }while(valid!=1); do{ puts("What is the destination of this packet?: "); if(scanf("%i", &amp;records[*rCount].destination == 1)) { valid = 1; } else { valid = 1; getchar(); puts("\nNot a valid input"); } } while(valid!=1); } </code></pre>
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    1. PO
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    1. USuser3103598
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      1. PO.exe crashes when I enter a vaue for &records[*rCount].source
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      1. PO.exe crashes when I enter a vaue for &records[*rCount].source
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      1. PO.exe crashes when I enter a vaue for &records[*rCount].source
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    1. This table or related slice is empty.
 

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