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How to find duplicates in 2 columns not 1
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edited Mar 13 '09 at 13:39
answered Mar 13 '09 at 13:20
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Is #pragma once a safe include guard?
...ine. The one caveat is that GCC didn't support #pragma once before version 3.4.
I also found that, at least on GCC, it recognizes the standard #ifndef include guard and optimizes it, so it shouldn't be much slower than #pragma once.
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Clear file cache to repeat performance testing
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83
Use SysInternal's RAMMap app.
The Empty / Empty Standby List menu option will clear the Windo...
How are echo and print different in PHP? [duplicate]
...ake multiple parameters, which get
concatenated:
echo "and a ", 1, 2, 3; // comma-separated without parentheses
echo ("and a 123"); // just one parameter with parentheses
print() can only take one parameter:
print ("and a 123");
print "and a 123";
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PHP expects T_PAAMAYIM_NEKUDOTAYIM?
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347
It’s the double colon operator :: (see list of parser tokens).
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Can I underline text in an Android layout?
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edited Oct 25 '17 at 13:57
Max
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answered Mar ...
Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…
...stamp of the format 2009-09-12 20:57:19 and turn it into something like 3 minutes ago with PHP.
30 Answers
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How to style the option of an html “select” element?
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edited Sep 30 '19 at 9:58
Jay
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C++ “virtual” keyword for functions in derived classes. Is it necessary?
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James McNellisJames McNellis
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how to solve “ruby installation is missing psych” error?
I used rvm to install ruby 1.9.3. even though it was successfully installed, it complained about libyaml. and now every time i wanna install a gem (say rails) this warning shows up:
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