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How to change the default GCC compiler in Ubuntu?
...l uses g++-7 standard libraries, and now i'm getting errors with undefined __builtin stuff.
– Youda008
May 1 '19 at 8:17
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How to enable C++11 in Qt Creator?
... that web page). It requires Qt 5.
The other answers, suggesting
QMAKE_CXXFLAGS += -std=c++11 (or QMAKE_CXXFLAGS += -std=c++0x)
also work with Qt 4.8 and gcc / clang.
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Rails.env vs RAILS_ENV
...
According to the docs, #Rails.env wraps RAILS_ENV:
# File vendor/rails/railties/lib/initializer.rb, line 55
def env
@_env ||= ActiveSupport::StringInquirer.new(RAILS_ENV)
end
But, look at specifically how it's wrapped, using ActiveSupport::String...
How to do a batch insert in MySQL
... within
parentheses and separated by commas.
Example:
INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9);
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Best way to check if a Data Table has a null value in it
...
I will do like....
(!DBNull.Value.Equals(dataSet.Tables[6].Rows[0]["_id"]))
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How do I install jmeter on a Mac?
...rror.cogentco.com/pub/apache/jmeter/binaries/…
– tk_
Nov 24 '14 at 5:48
1
Download it from here...
Redirect STDERR / STDOUT of a process AFTER it's been started, using command line?
...w copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Attaching to process 5636
Reading symbols from /usr/bin/tail...(no debugging symbols found)...done.
Reading symbols from /lib/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/librt.so....
How to remove all null elements from a ArrayList or String Array?
... answered Mar 13 '13 at 9:24
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`require': no such file to load — mkmf (LoadError)
... 1.8, when I run ruby -v I get: ruby 1.8.7 (2010-08-16 patchlevel 302) [x86_64-linux]
– Omar S.
Oct 4 '11 at 9:52
2
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How to use JUnit to test asynchronous processes
...Test {
/**
* Data limit
*/
private static final int DATA_LIMIT = 5;
/**
* Countdown latch
*/
private CountDownLatch lock = new CountDownLatch(1);
/**
* Received data
*/
private List<Data> receiveddata;
@Test
public void testData...