M
man-wai chang
what's wrong with this line:
print (($found)? "" : "not")."found\n";
print (($found)? "" : "not")."found\n";
A
Anno Siegel
man-wai chang said:
Consult the documentation of the functions you're using if they're giving
you trouble. perldoc -f print. See the sentence beginning with "Also
be careful...".
Anno
A
Arndt Jonasson
man-wai chang said:
If you enable warnings, you will get a very long and descriptive
text that tells you what the problem is.
M
man-wai chang
Consult the documentation of the functions you're using if they're giving
I see. thanks.
I see. thanks.
T
Tad McClellan
man-wai chang said:
It has too many parenthesis and a dot instead of a comma.
(ie. precedence)
print $found ? '' : 'not', "found\n";
You should always enable warnings when developing Perl code!
(Especially when perl is doing something you don't understand.
Especially especially before asking hundreds of people around
the world to help you with it.
)
See also:
Message-Id: <[email protected]>
M
man-wai chang
You should always enable warnings when developing Perl code!
I used `perl -w`. What else do I need?
I used `perl -w`. What else do I need?
S
Sherm Pendley
man-wai chang said:
sherm:~ sherm$ perl -e 'print (($found)? "" : "not")."found\n";'
not
sherm:~ sherm$ perl -w -e 'print (($found)? "" : "not")."found\n";'
print (...) interpreted as function at -e line 1.
Useless use of concatenation (.) or string in void context at -e line 1.
Name "main::found" used only once: possible typo at -e line 1.
not
You need to actually use it. Then, you need to read the warnings it
produces. If you don't understand them, try using diagnostics instead of
warnings, for a longer message:
perl -Mdiagnostics -e 'print (($found)? "" : "not")."found\n";'
sherm--