Thread: irritating bug wont go

I cant explain why this is happening :

Code:

     while(1)
        {
                                                                                                                             
                printf("what do you want to do \n");
                 printf("a> Send a file to the backend \n");
                 printf("b> Read a file in the backend \n");
                 printf("c> Execute a file in the backend \n");
                                                                                                                             
                 scanf("%c",&choice);
                 printf("choice entered :%c\n",choice);
                  
                 printf("enter the name of the file \n");
                 ..
.                ...
       }

this program is supposed to be in an infinite loop.

After the first loop is completed properly , the three options are displayed and the user is supposed to make his next choice.
But, my program is skipping through the scanf function in the second loop.
The first iteration is as expected,
this is what it shows after the first iteration :

Code:

OUPUT:


a> Send a file to the backend
b> Read a file in the backend
c> Execute a file in the backend
choice entered :
 
enter the name of the file

Even before i type anything.
in my code, I compare choice to select the option required, it doesnt get changed anywhere.

Why is this happening?

phew!! never knew that was happening..
I have a doubt in your method . OK, i will do:

Code:

      fgets(&choice,sizeof(char), stdin);

fine, what did you mean by check the contents in memory??

in the mean time i had tried this :

Code:

  char  *choice;
     while(1)
        {
                choice=malloc(sizeof(char));
                 printf("what do you want to do \n");
                 printf("a> Send a file to the backend \n");
                 printf("b> Read a file in the backend \n");
                 printf("c> Execute a file in the backend \n");
                                                                                                                             
                scanf("%c",choice); 
                printf("choice entered :%c\n",*choice);
                 printf("enter the name of the file \n");
                 ..
                 ..


                   ..
                  ..
                  free(choice);
         }

I thought this would work, but it didnt either..
Can you elaborate your idea a little bit..

Try this:

Code:

scanf("%c%*c",&choice);

well, that doesnt do the job either

this is the output now :

Code:

what do you want to do
a> Send a file to the backend
b> Read a file in the backend
c> Execute a file in the backend
a
choice entered :
 
enter the name of the file

Marginally better, as it is waiting for the input from the keyboard, but the choice variable isnt getting updated.

what did you imply anyway??

Ofcourse, I know what fgets() does and how it works.
and by the way, your idea still didnt work.
it is still taking in the '\n' as the input to the scanf() , in the second iteration and jumping into the next statement..

oh! sorry, i just typed that carelessly..my fault.

i should have typed "fgets()" instead of "scanf().."