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Can I call a constructor from another constructor (do constructor chaining) in C++?
... constructors).
The syntax is slightly different from C#:
class Foo {
public:
Foo(char x, int y) {}
Foo(int y) : Foo('a', y) {}
};
C++03: No
Unfortunately, there's no way to do this in C++03, but there are two ways of simulating this:
You can combine two (or more) constructors via defau...
Find the division remainder of a number
How could I go about finding the division remainder of a number in Python?
12 Answers
...
Propagate all arguments in a bash shell script
...
Use "$@" instead of plain $@ if you actually wish your parameters to be passed the same.
Observe:
$ cat foo.sh
#!/bin/bash
baz.sh $@
$ cat bar.sh
#!/bin/bash
baz.sh "$@"
$ cat baz.sh
#!/bin/bash
echo Received: $1
echo Received: $2
echo Received: $3
echo Received: $4
$ ./foo.sh first secon...
Is it possible to assign numeric value to an enum in Java?
Is anything like this possible in Java? Can one assign custom numeric values to enum elements in Java?
5 Answers
...
App Inventor 2 蓝牙发送十六进制字节方案：文本转Hex字节详解 - App应用开...
问题描述用户在文本框输入"ABCD"，想通过蓝牙发送 0xAB 0xCD 两个字节，而不是四个ASCII字符（0x41 0x42 0x43 0x44）。
每两个字符代表一个十六进制字节，需要将字符对解析为实际的字节值。
问题本质输入期望发送实际发送...
In javascript, is an empty string always false as a boolean?
... of ECMAScript, and ECMAScript language specification clearly defines this behavior:
ToBoolean
The result is false if the argument is the empty String (its length is zero);
otherwise the result is true
Quote taken from http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
...
Why exactly is eval evil?
I know that Lisp and Scheme programmers usually say that eval should be avoided unless strictly necessary. I’ve seen the same recommendation for several programming languages, but I’ve not yet seen a list of clear arguments against the use of eval . Where can I find an account of the potentia...
returning a Void object
...turn a Void type, when it isn't a primitive? Eg. I currently use null as below.
5 Answers
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Calling clojure from java
...ear explanation of how to call Clojure from Java assuming you have already built a jar from the Clojure project and included it in the classpath?
...
How to get folder path from file path with CMD
...ed path to the folder that contains cmd file.
With %0 I can get file name. But how to get folder name?
7 Answers
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