Hello world/Newline omission: Difference between revisions
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Line 13:
<lang basic>10 REM The trailing semicolon prevents a newline
20 PRINT "Goodbye World!";</lang>
=={{header|C}}==
<lang c>#include <stdio.h>
int main(int argc, char *argv[]) {
(void) printf("Goodbye, World!"); /* We don't get newlines unless we embed them */
return EXIT_SUCCESS;
}</lang>
=={{header|Perl}}==
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Revision as of 01:39, 25 July 2011
Some languages automatically insert a newline after outputting a string, unless measures are taken to prevent its output. The purpose of this task is to output the string "Goodbye, World!" to the terminal, preventing a trailing newline from occuring.
See also
BASIC
<lang basic>10 REM The trailing semicolon prevents a newline 20 PRINT "Goodbye World!";</lang>
C
<lang c>#include <stdio.h>
int main(int argc, char *argv[]) {
(void) printf("Goodbye, World!"); /* We don't get newlines unless we embed them */ return EXIT_SUCCESS;
}</lang>
Perl
<lang perl>print "Goodbye World!"; # A newline does not occur automatically</lang>
UNIX Shell
The behaviour of echo command is inconsistent across implementations. The -n parameter is not guaranteed to prevent a newline from occuring, so use a printf instead:
<lang sh>echo -n "Goodbye World!" # This may not work printf "Goodbye World!" # This works. newline is not automatically produced</lang>
ZX Spectrum Basic
<lang basic>10 REM The trailing semicolon prevents a newline 20 PRINT "Goodbye World!";</lang>