-
June 1st, 2023, 01:07 PM
#1
printf doubt with infinte loop
I'm not able to understand because test is not shown.
Code:
printf("test");
while (1);
while in this code Test is shown:
Code:
printf("test\n");
while (1);
What's difference with new line?
-
June 1st, 2023, 02:28 PM
#2
Re: printf doubt with infinte loop
Because "\n" causes an automatic
fflush(stdout);
when the output is in line buffered mode (which is the default when using an interactive console).
If you don't want the \n, then call fflush yourself.
-
June 2nd, 2023, 03:52 AM
#3
Re: printf doubt with infinte loop
\n outputs a new line and flushes the buffer if line-buffered (default for stdout to console).
is the same as:
Last edited by 2kaud; June 3rd, 2023 at 08:13 AM.
All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!
C++23 Compiler: Microsoft VS2022 (17.6.5)
-
June 3rd, 2023, 06:57 AM
#4
Re: printf doubt with infinte loop
 Originally Posted by salem_c
Because "\n" causes an automatic
fflush(stdout);
when the output is in line buffered mode (which is the default when using an interactive console).
Where can I find info about this mode ?
-
June 3rd, 2023, 08:14 AM
#5
Re: printf doubt with infinte loop
All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!
C++23 Compiler: Microsoft VS2022 (17.6.5)
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
|
Click Here to Expand Forum to Full Width
|