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C: What is the difference between ++i and i++?
... in the incrementation block of a for loop? the answer is, you can use any one.. doesn't matter. It will execute your for loop same no. of times.
for(i=0; i<5; i++)
printf("%d ",i);
And
for(i=0; i<5; ++i)
printf("%d ",i);
Both the loops will produce same output. ie 0 1 2 3 4.
It o...
std::auto_ptr to std::unique_ptr
...ible doesn't seem wrong.
Function parameter by value:
100% compatible with one caveat, unique_ptrs must be passed through a std::move call. This one is simple as the compiler will complain if you don't get it right.
Function parameter by reference:
100% compatible.
Class member variable:
This one i...
How to implement a Map with multiple keys? [duplicate]
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Two maps. One Map<K1, V> and one Map<K2, V>. If you must have a single interface, write a wrapper class that implements said methods.
share
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Entity Framework 6 Code first Default value
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This approach worked perfectly for me. One enhancement I made was to also override Generate(CreateTableOperation createTableOperation) and Generate(AddColumnOperation addColumnOperation) with the same logic so those scenarios are also caught. I also only check val...
How does free know how much to free?
...tore accounting information for each block, either in-line or separately.
One typical way (in-line) is to actually allocate both a header and the memory you asked for, padded out to some minimum size. So for example, if you asked for 20 bytes, the system may allocate a 48-byte block:
16-byte head...
When should I use C++14 automatic return type deduction?
...s a published interface you can (hopefully) rely on.
[*] Occasionally someone tries to make some objective measurements. To the small extent that anyone ever comes up with any statistically significant and generally-applicable results, they are completely ignored by working programmers, in favour o...
Configure IIS Express for external access to VS2010 project
...the required permissions. In the example below permission is given to everyone, but you could use your own username.
Note: The urlacl must exactly match the binding. So a urlacl for http://*:8080 will allow a binding of *:8080:*, but not a binding of *:8080:localhost even though the latter is a sub...
What is the point of Lookup?
... not a general purpose collection in the sense that if you do lookup on a nonexistent key you get an empty sequence rather than an exception, which is meaningful only in special contexts, for eg, with linq. This goes well with the fact that MS hasn't provided a public constructor for the class.
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How to change context root of a dynamic web project in Eclipse?
... you clean and re-publish your project to "activate" the new URI. This is done by right-clicking your server (in the Servers view) and choosing Clean. Then you start (or restart it). Most of the other answers here suggest you do things that in effect accomplish this.
The file that's changing is work...
Java synchronized static methods: lock on object or class
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Please answer Elaborate so that everyone can understand.
– Madhu
Sep 2 '09 at 4:49
6
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