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What is object slicing?
... also to the copy constructor). This works because an instance of B can be converted to a const A&, which is what assignment operators and copy-constructors expect their arguments to be.
The benign case
B b;
A a = b;
Nothing bad happens there - you asked for an instance of A which is a copy ...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...array.
Dereferencing the pointer at a location beyond the end of an array.
Converting pointers to objects of incompatible types
Using memcpy to copy overlapping buffers.
Buffer overflows
Reading or writing to an object or array at an offset that is negative, or beyond the size of that object (stac...
0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
...
I'd say the answer depends on the rounding mode when converting the double to float. float has 24 binary bits of precision, and double has 53. In binary, 0.1 is:
0.1₁₀ = 0.0001100110011001100110011001100110011001100110011…₂
^ ^ ^ ^
...
Which Radio button in the group is checked?
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for you vb.net guys, I'll save you a trip to the Telerik converter: Dim checkedButton = radConnections.Controls.OfType(Of RadioButton)().FirstOrDefault(Function(r) r.Checked)
– JoshYates1980
Jun 24 '16 at 17:23
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Print text instead of value from C enum
...ave human-readable strings for these, you will need to define functions to convert from enumerations to strings.
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Read/Write String from/to a File in Android
...)) != -1) {
sb.append(inputBuffer, 0, l);
}
// CONVERT BYTES TO STRING
String readString = sb.toString();
fis.close();
catch (Exception e) {
} finally {
if (fis != null) {
fis = null;
}
}
below code is to write t...
Too many 'if' statements?
... @SList no, comments don't run. OP did exactly what should be done; convert comments to clear code. See e.g. Steve McConnell Code Complete stevemcconnell.com/cccntnt.htm
– djechlin
Mar 24 '14 at 12:46
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Preferred way to create a Scala list
... = Vector(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
You probably don't even need to convert to a list in most cases :)
The indexed seq will have everything you need:
That is, you can now work on that IndexedSeq:
scala> list.foldLeft(0)(_+_)
res0: Int = 55
...
How to emulate C array initialization “int arr[] = { e1, e2, e3, … }” behaviour with std::array?
... by using static_assert and some TMP to detect when Tail is not implicitly convertible to T, and then using T(tail)..., but that is left as an exercise for the reader :)
– Pavel Minaev
May 24 '11 at 17:46
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How can I pad a String in Java?
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Something simple:
The value should be a string. convert it to string, if it's not. Like "" + 123 or Integer.toString(123)
// let's assume value holds the String we want to pad
String value = "123";
Substring start from the value length char index until end length of pad...