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What is an idiomatic way of representing enums in Go?
...d identifier iota represents successive untyped integer constants. It is reset to 0 whenever the reserved word const appears in the source and increments after each ConstSpec. It can be used to construct a set of related constants:
const ( // iota is reset to 0
c0 = iota // c0 == 0
...
Is there a way to make mv create the directory to be moved to if it doesn't exist?
So, if I'm in my home directory and I want to move foo.c to ~/bar/baz/foo.c , but those directories don't exist, is there some way to have those directories automatically created, so that you would only have to type
...
Find kth smallest element in a binary search tree in Optimum way
I need to find the kth smallest element in the binary search tree without using any static/global variable. How to achieve it efficiently?
The solution that I have in my mind is doing the operation in O(n), the worst case since I am planning to do an inorder traversal of the entire tree. But deep do...
Executing Batch File in C#
...below, I was able to recreate the problem. There seems to be some security setting that results in this behaviour (haven't investigated that in detail).
This does work if the batch file is not located in C:\Windows\System32. Try moving it to some other location, e.g. the location of your executabl...
org.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for
I'm using Hibernate for all CRUD operations in my project. It doesn't work for One-To-Many and Many-To-One relationships. It gives me the below error.
...
Java multiline string
Coming from Perl, I sure am missing the "here-document" means of creating a multi-line string in source code:
42 Answers
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How to configure Mac OS X term so that git has color? [closed]
...o configure git. Try running
$ git config --global color.diff true
to set your $HOME/.gitconfig appropriately.
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Checking if array is multidimensional or not?
...ded in PHP 4.2.0. From the PHP Docs:
If the optional mode parameter is set to COUNT_RECURSIVE (or 1), count() will recursively count the array. This is particularly useful for counting all the elements of a multidimensional array. count() does not detect infinite recursion.
However this method...
C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
...执行）：
#include <atomic>
#include <memory>
#include <unordered_set>
template <class T>
struct HazardPointer {
public:
class Holder {
public:
explicit Holder(HazardPointer<T> *pointer) : pointer_(pointer) {}
Holder(const HazardPointer &) = delete;
~Holder() { po...
What is the worst real-world macros/pre-processor abuse you've ever come across?
...
From memory, it looked something like this:
#define RETURN(result) return (result);}
int myfunction1(args) {
int x = 0;
// do something
RETURN(x)
int myfunction2(args) {
int y = 0;
// do something
R...