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Why is the gets function so dangerous that it should not be used?
... head the trouble off sooner rather than later. I'd be prepared to add an error message:
fputs("obsolete and dangerous function gets() called\n", stderr);
Modern versions of the Linux compilation system generates warnings if you link gets() — and also for some other functions that also have s...
Objective-C : BOOL vs bool
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the compiler will raise an error if you use bool as a parameter of a block that is defined to get a BOOL (UIView animation blocks, e.g.), when you compile for iOS 32 bits (iPhone 5C...). I use C++ bool everywhere in my code, and BOOL in the APIs that a...
What is the difference between AF_INET and PF_INET in socket programming?
...hen i type man bind(2) or man bind() , terminal gives unexpected token '(' error whereas man bind gives explanation of bind in bash builtins. How to get man page for bind() . i mean bind() function ?
– SP Sandhu
Jul 18 '11 at 7:31
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How to get Spinner value?
In Android, I am trying to get the selected Spinner value with a listener.
7 Answers
7...
How can I check for Python version in a program that uses new language features?
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You can test using eval:
try:
eval("1 if True else 2")
except SyntaxError:
# doesn't have ternary
Also, with is available in Python 2.5, just add from __future__ import with_statement.
EDIT: to get control early enough, you could split it into different .py files and check compatibility ...
How do I install Maven with Yum?
...o be replaced with epel-6, or else yum install apache-maven will fail with error 404.
– O. R. Mapper
Oct 6 '14 at 8:39
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Add a prefix to all Flask routes
....config['DEBUG'] = True
# Load a dummy app at the root URL to give 404 errors.
# Serve app at APPLICATION_ROOT for localhost development.
application = DispatcherMiddleware(Flask('dummy_app'), {
app.config['APPLICATION_ROOT']: app,
})
run_simple('localhost', 5000, applica...
Use grep to report back only line numbers
I have a file that possibly contains bad formatting (in this case, the occurrence of the pattern \\backslash ). I would like to use grep to return only the line numbers where this occurs (as in, the match was here, go to line # x and fix it).
...
What is a None value?
...t recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'F' is not defined
and that NameError means Python doesn't recognize the name F, because there is no such sticker. If Briggs were right and F = None resets F to its original state, then it should be there now, ...
Javascript: Round up to the next multiple of 5
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answered Sep 23 '13 at 7:05
Michael Krelin - hackerMichael Krelin - hacker
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