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Why does flowing off the end of a non-void function without returning a value not produce a compiler
...e rationale includes that checking if every code path returns a value is quite difficult, and a return value could be set with embedded assembler or other tricky methods.
From C++11 draft:
§ 6.6.3/2
Flowing off the end of a function [...] results in undefined behavior in a value-returning fun...
Why doesn't Java offer operator overloading?
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Assuming you wanted to overwrite the previous value of the object referred to by a, then a member function would have to be invoked.
Complex a, b, c;
// ...
a = b.add(c);
In C++, this expression tells the compiler to create three (3) objects on the st...
When do you use Java's @Override annotation and why?
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Use it every time you override a method for two benefits. Do it so that you can take advantage of the compiler checking to make sure you actually are overriding a method when you think you are. This way, if you make a common mi...
JavaScript hide/show element
How could I hide the 'Edit'-link after I press it? and also can I hide the "lorem ipsum" text when I press edit?
11 Answers...
What are database normal forms and can you give examples? [closed]
...s) and tables (relations) to reduce data redundancy and improve data integrity. (as written on Wikipedia ).
4 Answers
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What's the syntax for mod in java
...follow
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edited Jan 9 at 19:45
axel22
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Create ArrayList from array
I have an array that is initialized like:
38 Answers
38
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Can you explain the concept of streams?
...tion of a sequence of bytes. Each stream provides means for reading and writing bytes to its given backing store. But what is the point of the stream? Why isn't the backing store itself what we interact with?
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How does the vim “write with sudo” trick work?
Many of you have probably seen the command that allows you to write on a file that needs root permission, even when you forgot to open vim with sudo:
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SQL left join vs multiple tables on FROM line?
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The old syntax, with just listing the tables, and using the WHERE clause to specify the join criteria, is being deprecated in most modern databases.
It's not just for show, the old syntax has the possibility of being ambiguous when you use b...