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Purpose of Unions in C and C++
...by using the same memory region for storing different objects at different times. That's it.
It is like a room in a hotel. Different people live in it for non-overlapping periods of time. These people never meet, and generally don't know anything about each other. By properly managing the time-shar...
Determine the line of code that causes a segmentation fault?
...compilers come with the handy -fsanitize=address flag, adding some compile time and run time overhead which does more error checking.
According to the documentation these checks include catching segmentation faults by default. The advantage here is that you get a stack trace similar to gdb's output...
Cost of exception handlers in Python
...
Why don't you measure it using the timeit module? That way you can see whether it's relevant to your application.
OK, so I've just tried the following:
import timeit
statements=["""\
try:
b = 10/a
except ZeroDivisionError:
pass""",
"""\
if a:
b ...
How to modify a global variable within a function in bash?
...r prone to always repeate in the correct context. What if you use it 1000 times in a script and then add a variable? You definitively do not want to alter all the 1000 locations where a call to d is involved.
So leave the x away, so we can write:
_passback() { while [ 0 -lt $# ]; do printf '%q=%...
SSL handshake alert: unrecognized_name error since upgrade to Java 1.7.0
...erty, but it won't have any effect on the SNI status. To disable SNI on runtime (with the aforementioned limitations), use:
System.setProperty("jsse.enableSNIExtension", "false");
The disadvantage of setting this flag is that SNI is disabled everywhere in the application. In order to make use of ...
How to get the last date of a particular month with JodaTime?
I need to get the first date (as org.joda.time.LocalDate ) of a month and the last one. Getting the first is trivial, but getting the last seems to need some logic as months have different length and February length even varies over years. Is there a mechanism for this already built in to JodaTime ...
How to stop a program running under Eclipse?
...
Ya. that is another way, but it takes time to reach there, unless u have that in the background. :)
– Varun
Feb 23 '11 at 16:47
11
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Why should I not wrap every block in “try”-“catch”?
... there isn't any exception. When there is one propagating it does consumes time each times it's thrown and caught, so a chain of try/catch that only rethrow isn't costless.
– Matthieu M.
Apr 29 '10 at 13:41
...
Reset C int array to zero : the fastest way?
...tent to zero (not only for initialization but to reset the content several times in my program)? Maybe with memset?
7 Answe...
Java Logging vs Log4J [closed]
... @Stephen C: Thanks for the info, though I learned that some time ago and am now using SLF4J whenever I can. (My comment was a real question btw, not a conservative remark)
– Bart van Heukelom
Jun 19 '11 at 11:39
...