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while (getchar != '\n'); alternative to clear the buffer


while (getchar != '\n'); alternative to clear the buffer

By : Saad Anjum
Date : September 24 2020, 03:00 AM
This might help you I read that getchar() returns that char it reads, so I'm wondering if this can be alternative for while (getchar() != '\n'); to clear the buffer. I haven't see any similar codes yet using this technique to clear the buffer. ,
I read that getchar() returns that char it reads,
code :
// Read and dispose of data from stdin until \n or EOF encountered
// Return \n or EOF
int clearBuffer1(void) {
  int ch;
  while ((ch = getchar()) != '\n' && ch != EOF) {
    ;
  }
  return ch;
}


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What is the alternative to kill/clear text till the end of buffer?

What is the alternative to kill/clear text till the end of buffer?


By : Shamshad
Date : March 29 2020, 07:55 AM
wish help you to fix your issue M-> sets the mark before jumping to the end of the buffer, so just M-> M-x delete-region will do it. You could bind a key to the latter if you do it a lot.
When using getchar(), why do you need to clear the buffer for the enter key press in the first place?

When using getchar(), why do you need to clear the buffer for the enter key press in the first place?


By : Maddy
Date : March 29 2020, 07:55 AM
To fix the issue you can do There are two buffers are in action here: one is Keyboard buffer and another is C standard buffer (input buffer).
When you press the keyboard buttons then the characters stored in keyboard buffer. So when you type ZK together then it simply stored at keyboard buffer. On pressing Enter key, it will goes to C standard buffer with one more character \n (generated on pressing Enter key).
Powershell Clear-Host alternative to preserve the buffer

Powershell Clear-Host alternative to preserve the buffer


By : user2756567
Date : March 29 2020, 07:55 AM
wish of those help Here's a post which gives exactly what you're looking for:
http://tommymaynard.com/ql-clear-host-without-clearning-the-host/
In C, is it possible to read a char from getchar's current buffer position without moving the buffer's pointer?

In C, is it possible to read a char from getchar's current buffer position without moving the buffer's pointer?


By : Dominik Genz
Date : March 29 2020, 07:55 AM
Any of those help You can use ungetc() to push the character back into stdin. Here's a blurb from the doc:
code :
int ungetc( int ch, FILE *stream ); 
Clearing the buffer when using Getchar (there must be a better way!)

Clearing the buffer when using Getchar (there must be a better way!)


By : Jaric
Date : March 29 2020, 07:55 AM
it helps some times Note that fflush(stdin) is undefined behavior according to the C Standard, though it is supported by a few implementations.
The idiomatic way to do this is:
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