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What do people find difficult about C pointers? [closed]
... left till someone tries to build a compiler.
"Memory is memory is memory" Casting just changes which versions of operators or how much room the compiler gives for a particular chunk of memory. You know you're dealing with this problem when people talk about "what (primitive) variable X really is".
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Why can't C++ be parsed with a LR(1) parser?
...xed as:
int (MyClass::*)(char*) MethodPtr;
this being coherent with the cast operator (int (MyClass::*)(char*))
typedef int type, *type_ptr; could be forbidden too : one line per typedef. Thus it would become
typedef int type;
typedef int *type_ptr;
sizeof int, sizeof char, sizeof long lon...
What is the difference between Google App Engine and Google Compute Engine?
...ine is a Platform-as-a-Service. It means that you simply deploy your code, and the platform does everything else for you. For example, if your app becomes very successful, App Engine will automatically create more instances to handle the increased volume.
Read more about App Engine
Compute Engine ...
Why does changing 0.1f to 0 slow down performance by 10x?
... than on normalized floating-point. This is because many processors can't handle them directly and must trap and resolve them using microcode.
If you print out the numbers after 10,000 iterations, you will see that they have converged to different values depending on whether 0 or 0.1 is used.
Here...
C/C++ with GCC: Statically add resource files to executable/library
...t uniform, then char is probably the most convenient: take its address and cast the pointer to the proper type as you traverse the data.
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Copy constructor versus Clone()
... used. It also returns object, which is a pain, since it requires a lot of casting. (And though you specifically mentioned classes in the question, implementing ICloneable on a struct requires boxing.)
A copy constuctor also suffers from one of the problems with ICloneable. It isn't obvious whether...
Best way to compare two complex objects
....Equals method (whose execution would be marginally slower due to the type cast).
When you override Object.Equals, you’re also expected to override Object.GetHashCode; I didn’t do so below for the sake of conciseness.
public class Person : IEquatable<Person>
{
public int Age { get; s...
Android: install .apk programmatically [duplicate]
I made this with help from
Android download binary file problems
and Install Application programmatically on Android .
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Why em instead of px?
I heard you should define sizes and distances in your stylesheet with em instead of in pixels. So the question is why should I use em instead of px when defining styles in css? Is there a good example that illustrates this?
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byte[] to hex string [duplicate]
....Enumerable.WhereSelectArrayIterator<byte,string>} which String.Join cast to a String[].
– Aussie Craig
Mar 8 '09 at 6:17
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