My last fgets is being skipped why?

Asked Oct 15 '17 at 16:27

Active Oct 15 '17 at 16:41

Viewed 95 times

I'm doing part two of my programming project for my course in university. this time around we are using a loop, while loop. my first fgets in the loop runs and so does the rest although i have problems from time to time. but the last one that is take the loop variable and change it after a prompt never runs. why?

I know that this is a common issue but i can't find a fix to my problem at on the other questions.

printf("Would you like to place an order? Enter 'yes'"
    "\n If not, Enter 'XXX':\n");
fgets(loop, sizeof(loop),stdin);

while(strcmp(loop,"XXX")!=0){

    printf("Please provide your company name: \n");
    fgets(company_n, sizeof(company_n), stdin);

    printf("Please provide name: \n");
    fgets(contact_name, sizeof(contact_name), stdin);

    printf("Please provide contact number: \n");
    fgets(tel_num, sizeof(tel_num), stdin);

    //Items//
    printf("\t\t\t\t  Our Apparels: \n");
    printf("\t\t\tApparels\t\tItem code\n");
    printf("\t\t\ta)T-Shirts\t\t'T'\n");
    printf("\t\t\tb)Bags\t\t\t'B'\n");
    printf("\t\t\tc)Caps\t\t\t'C'\n\n");

    //reading item code//
    printf("Enter corresponding item code: \n");
    scanf(" %c",&code);

    printf("How much of this item would you like to order:\n");
    scanf("%i",&amount);

    printf("Would you like to place another order? Enter 'yes'"
    "\n If not, Enter 'XXX':\n");
    fgets(loop, sizeof(loop),stdin);
}

edited Oct 15 '17 at 16:41

asked Oct 15 '17 at 16:27

Delavago1999

another question. being that i'm on linux and cannot use the **#include header. how can i make a pop up dialog or message box in linux? – Delavago1999 Oct 15 '17 at 16:28
1

i think there is a `\r` or `\n` in the input buffer try to flush the input before `fgets` – Ankur Jyoti Phukan Oct 15 '17 at 16:29
1

Mixing `fgets()` and `scanf()` makes things complicated, as you observer ... – alk Oct 15 '17 at 16:30
ok i'll try that – Delavago1999 Oct 15 '17 at 16:30
@alk what do you suggest? – Delavago1999 Oct 15 '17 at 16:30
1

Don't do `fflush(stdin)`, as it provokes the infamouse Undefined Behaviour. – alk Oct 15 '17 at 16:30
@Delavago for your other question , you should ask a separate question , because in linux graphic user interface is achieved by varous ways .. – Ankur Jyoti Phukan Oct 15 '17 at 16:31
Best either use the one or the other. – alk Oct 15 '17 at 16:31
[How to flush Standard Input](https://stackoverflow.com/q/7898215/694576) – alk Oct 15 '17 at 16:34
using 'fflush();' does not fix it. sorry. and using fgets is the only way i know to read in a string with whitespace. should i change the scanf to something else or the fgets? – Delavago1999 Oct 15 '17 at 16:34
@AnkurJyotiPhukan will do after i've fixed this problem – Delavago1999 Oct 15 '17 at 16:34
@Some programmer dude i did not find the answer there. sigh – Delavago1999 Oct 15 '17 at 16:40
Flush the buffer before fgets – Shubham Agrawal Oct 15 '17 at 16:43
i used a `getchar();` before the `fgets` to consume the whitespace – Delavago1999 Oct 15 '17 at 17:37

My last fgets is being skipped why?

0 Answers0