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Python's equivalent of && (logical-and) in an if-statement
...t_and_return(False) and print_and_return(True)
False
As you can see only one print statement is executed, so Python really didn't even look at the right operand.
This is not the case for the binary operators. Those always evaluate both operands:
>>> res = print_and_return(False) & p...
How to print the full traceback without halting the program?
...TypeError: Again !?!
If you really need to access the original traceback one solution is to cache the exception infos as returned from exc_info in a local variable and display it using print_exception:
import traceback
import sys
try:
raise TypeError("Oups!")
except Exception, err:
try:
...
Real escape string and PDO [duplicate]
... process of migrating old code to use PDO and while the solution is a good one, people need to be aware of the fact that it will place quotes around the string. So if people are building out queries that already have quotes like "SELECT * FROM users WHERE username = '".$conn->quote($username)."'...
Is there an equivalent to e.PageX position for 'touchstart' event as there is for click event?
...a late, but you need to access the original event, not the jQuery massaged one. Also, since these are multi-touch events, other changes need to be made:
$('#box').live('touchstart', function(e) {
var xPos = e.originalEvent.touches[0].pageX;
});
If you want other fingers, you can find them in o...
How to use shared memory with Linux in C
I have a bit of an issue with one of my projects.
5 Answers
5
...
Why are #ifndef and #define used in C++ header files?
...
@CIsForCookies Punch "one definition rule" into your favorite search engine.
– David Schwartz
Jul 25 '19 at 1:57
...
How to create custom exceptions in Java? [closed]
...ar as throwing/catching custom exceptions, it works just like the built-in ones - throw via
throw new MyCustomException()
and catch via
catch (MyCustomException e) { }
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Run an Application in GDB Until an Exception Occurs
...e for HP-UX.
tcatch event
Set a catchpoint that is enabled only for one stop. The catchpoint is automatically deleted after the first time the event is caught.
Use the info break command to list the current catchpoints.
There are currently some limitations to C++ exception handling (catch...
Vim: Move cursor to its last position
...On a UK keyboard, the apostrophe is more accessible, so I tend to use that one. There are loads of useful marks like this, see :help mark-motions.
For some other motions (not 2j I think), there's also the jump-list that lets you navigate back and forth among a number of motions. CtrlO and CtrlI d...
In C, do braces act as a stack frame?
.... The relevant part of the C standard is 6.2.4p5:
For such an object [one that has
automatic storage duration] that does
not have a variable length array type,
its lifetime extends from entry into the block with which it is associated
until execution of that block ends in
any way. (En...