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Break when a value changes using the Visual Studio debugger
...you can use the sizeof operator.
For example:
// to know the size of the word processor,
// if you want to inspect a pointer.
int wordTam = sizeof (void* );
If you look at the "Call stack" you can see the function that changed the value of the variable.
...
How to select rows with no matching entry in another table?
...ed to only those rows where the ID returned from Table2 is null - in other words there is NO record in Table2 for that particular ID from Table1. Table2.ID will be returned as NULL for all records from Table1 where the ID is not matched in Table2.
...
Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?
... is on the $LOAD_PATH and then require all files relative to lib. In other words: I leave it to the administrator to figure out how to set up the $LOAD_PATH correctly. If you use RubyGems, that is trivial, because RubyGems automatically does it for you, and if you use Debian packages, then it's the ...
Why cast unused return values to void?
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Does the standard "discarded" wording imply that warning should not be raised by linters?
– Ciro Santilli 郝海东冠状病六四事件法轮功
Jul 25 '16 at 8:53
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How to set timeout on python's socket recv method?
...meout not the primary socket's, if you implement the server side. In other words, there is another timeout for the connection socket object, which is the output of socket.accept() method. Therefore:
sock.listen(1)
connection, client_address = sock.accept()
connection.settimeout(5) # This is the ...
How to get current working directory in Java?
... same folder as the JAR file, then it's just already in the classpath. The word "hardcoding" is a bit exaggerated, I actually meant "knowing their path relative to the JAR file".
– BalusC
Jun 30 '10 at 21:35
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What is the purpose of “&&” in a shell command?
...ng of the second process if the first fails.
You may notice I've used the word "intent" - that's for good reason. Not all programs have the same behavior, so for this to work, you need to understand what the program considers a "failure" and how it handles it by reading the documentation and, if ne...
How to run Visual Studio post-build events for debug build only
...if you use "" around $(ConfigurationName), you also need quotes around the word Debug too - shell command IF statements are very .. literal ... when it comes to string comparisons.
– gbjbaanb
Oct 7 '13 at 8:11
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Background color not showing in print preview
... line 1154: @media print { body {margin:0; padding:0; line-height: 1.4em; word-spacing:1px; letter-spacing:0.2px; font: 12px Arial, Helvetica,"Lucida Grande", serif; color: #000;}.... you need to add it in there...
– Riskbreaker
Feb 28 '13 at 19:14
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Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplic
...ally swapping elements of two vectors, just as its name suggests. In other words, the source vector to copy from is modified after std::vector::swap is called, which is probably not what you are expected.
Deep or shallow copy?
If the elements in the source vector are pointers to other data, then...