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How to find memory leak in a C++ code/project?
...e associated with a pointer. When a dynamic variable becomes disassociated from its pointer(s), it becomes impossible to erase. Again, this results in a memory leak:
char* str1 = new char [30];
char* str2 = new char [40];
strcpy(str1, "Memory leak");
str2 = str1; // Bad! Now the 40 bytes are imp...
Calling Java varargs method with single null argument?
...
@ArunKumar asList() is a static import from the java.util.Arrays class. I just assumed it was obvious. Although now that I'm thinking about it, I probably should have just used Arrays.toString() since the only reason it gets converted to a List is so it will print...
What does the 'static' keyword do in a class?
...thod because the OP did. If instead it was a public method that was called from elsewhere, and the Hello class was instantiated more than once, then it could create a Clock instance for each Hello instance, unless clock was static.
– Paul Tomblin
Sep 3 '17 at 2...
What is the difference between location list and quickfix list in vim
The following is from the documentation about the quickfix list and location list. But I am not sure what actually different. The image below shows the same things from the location list and quickfix list. When do I use one or another in vimgrep and lvimgrep.
...
Java Pass Method as Parameter
...'s the visitor pattern (separate the action of iterating over a collection from the function applied to each member of the collection), not the command pattern (encapsulate the arguments for a method call into an object). You are specifically not encapsulating the argument - it is provided by the it...
Tab space instead of multiple non-breaking spaces (“nbsp”)?
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@Shafizadeh From W3 specs: an en space is half the point size and an em space is equal to the point size of the current font.   is slightly bigger. I can see the difference in Chrome 64 and FireFox 58.
– Dm...
Relative paths based on file location instead of current working directory [duplicate]
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This will make your shell script work independent of where you invoke it from. Each time you run it, it will be as if you were running ./cat.sh inside dir.
Note that this script only works if you're invoking the script directly (i.e. not via a symlink), otherwise the finding the current location ...
Mixins vs. Traits
..., MB {
bar():void {
foo();
}
}
This will call foo():void from MA
On the other hand while using Traits, composing class has to resolve conflicts.
Class C mixins TA, TB {
bar():void {
foo();
}
}
This code will raise conflict (two definitions of foo():void).
ad 3....
RVM: Uninstalling all gems of a gemset
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rvm gemset empty <gemset name>
This will remove all gems from your mentioned gemset.
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Best way to add page specific JavaScript in a Rails 3 app?
...f you want them precompiled. However, if you require every javascript file from application.js.coffee then all the javacsripts will be loaded every time you navigate to a different page, and the purpose of doing page-specific javascripts will be defeated.
Therefore, you need to create your own man...