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What's so bad about Template Haskell?
...ent matter of change when.
This is where using zeroth pays off - you're already versioning the generated files - so you'll always know when the form of the generated code has changed. Looking at the diffs might be a bit gnarly, though, for large amounts of generated code, so that's one place where ...
Move assignment operator and `if (this != &rhs)`
...gorithms are defined so as to produce undefined behavior on no-op copies already (ouch; the 20-year-old memmove gets the trivial case right but std::move doesn't!). So I guess I haven't thought of a "slam dunk" for self-assignment yet. But obviously self-assignment is something that happens a lot in...
Database development mistakes made by application developers [closed]
...OUP BY clause) can be compared to joins.
To give you an idea of how widespread this is, I've written on this topic several times here and been downvoted a lot for it. For example:
From SQL statement - “join” vs “group by and having”:
First query:
SELECT userid
FROM userrole
WHERE rol...
C++ performance vs. Java/C#
...
JIT vs. Static Compiler
As already said in the previous posts, JIT can compile IL/bytecode into native code at runtime. The cost of that was mentionned, but not to its conclusion:
JIT has one massive problem is that it can't compile everything: JIT comp...
Refresh image with a new one at the same url
...mgReload(), and MAY be a relative URI;
// However, be aware that if you're reading the src property of an <img> DOM object, you'll always get back a fully-qualified URI,
// even if the src attribute was a relative one in the original HTML. So watch out if trying to compare the two!
// NOTE th...
Further understanding setRetainInstance(true)
... landscape. The code is below.
(This is edited a bit to make it easier to read.)
TestActivity@415a4a30: this()
TestActivity@415a4a30: onCreate()
TestActivity@415a4a30: Existing fragment not found.
TestFragment{41583008}: this() TestFragment{41583008}
TestFragment{41583008}: onAttach(TestActivity@4...
Polymorphism in C++
...er net around the use of polymorphism so localised use doesn't force widespread use, and making the benefits of polymorphism available as needed without imposing the costs of having to expose implementation at compile time, have multiple copies of the same logical function in the object code to supp...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...file contains plain text passwords and ##
## should be secured to have read permission only by oracle user ##
## or db administrator who owns this installation. ##
##对整个文件的说明，该文件包含参数说明，静默文件中密码信息的保密##
###############...
The static keyword and its various uses in C++
...ing it, should come easy (not addressing @Tony directly, but whoever might read this in the future).
The keyword static can be used to denote internal linkage and static storage, but in essence these are different.
What does it mean with local variable? Is that a function local variable?
Yes....
Table with fixed header and fixed column on pure css
...
This answer proves it's worth it to read all the way to the bottom!
– mlerley
Oct 27 '18 at 19:28
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