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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
...ill search for a fonction to handle ++t ; or t++ ; code:
class T
{
// etc.
} ;
T & operator++(T & p_oRight) // ++A
{
// Do increment of p_oRight value
return p_oRight ;
}
T operator++(T & p_oRight, int) // A++
{
T oCopy ;
// Copy p_oRight into oCopy
// Do increment...
Java String split removed empty values
... multiple separators, including whitespace characters, commas, semicolons, etc. take those in repeatable group with []+, like:
String[] tokens = "a , b, ,c; ;d, ".split( "[,; \t\n\r]+" );
you'll have 4 tokens -- a, b, c, d
leading separators in the source string need to be removed befo...
Java 7 language features with Android
...nd pane) → Language level → (choose "7.0 - Diamonds, ARM, multi-catch, etc.")
This only allows Java 7 language features, and you can hardly benefit from anything since a half of improvement also comes from the library. Features you could use are those which do not depend on the library:
Di...
Change MySQL default character set to UTF-8 in my.cnf?
...ve that directive and you should be good.
Then your configuration file ('/etc/my.cnf' for example) should look like that:
[mysqld]
collation-server = utf8_unicode_ci
init-connect='SET NAMES utf8'
character-set-server = utf8
Restart MySQL.
For making sure, your MySQL is UTF-8, run the following qu...
Efficient way to apply multiple filters to pandas DataFrame or Series
...i'd used: df[f_2 & f_3 & f_4 & f_5 ] with f_2 = df["a"] >= 0etc. No need for that function... (nice use of higher order function though...)
– A. Rabus
Aug 29 '19 at 8:29
...
Haskell testing workflow
...s from the command line and get pop-up KDE windows with benchmark results, etc.
Since in practice you're living in cabal anyways while developing Haskell code, it makes a lot of sense to integrate your toolchain with it.
Edit: Cabal test support now does exist. See http://www.haskell.org/cabal/rel...
How to implement a many-to-many relationship in PostgreSQL?
...llow NULL values, functions and joins can introduce NULL values in queries etc.
Read the chapter on CREATE TABLE in the manual.
Primary keys are implemented with a unique index on the key columns, that makes queries with conditions on the PK column(s) fast. However, the sequence of key columns is ...
PHP Foreach Pass by Reference: Last Element Duplicating? (Bug?)
...
@jocull: IN PHP, foreach, for, while, etc do not create their own scope.
– animuson♦
Nov 25 '11 at 18:24
1
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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
...t is" Just respond with a test case we can reproduce, version, patch level etc.
– Mark Brady
Dec 2 '08 at 19:28
2
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Can (domain name) subdomains have an underscore “_” in it?
...archically underneath bar.baz., e.g. a.bar.baz., f.g.bar.baz., h.bar.baz., etc. This "subdomain" may or may not include actual hostnames.
– David Tonhofer
Jun 6 '17 at 19:42
2
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