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Ubuntu rails install fails on zlib
I've just moved over to Ubuntu 8.10 as my dev box; it's my first serious foray into Linux as a daily-use OS, and I'm having a hard time getting Rails going. I have followed a number of tutorials which all seem to work fine, but when I try and use gem install or gem update on anything, I get an erro...
Searching for UUIDs in text with regex
...tly I'm relying on the assumption that all UUIDs will follow a patttern of 8-4-4-4-12 hexadecimal digits.
16 Answers
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Java: Why is the Date constructor deprecated, and what do I use instead?
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edited Jul 9 '19 at 1:58
Sae1962
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answered Apr 15 '11 at 13:...
What is the memory consumption of an object in Java?
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183
Mindprod points out that this is not a straightforward question to answer:
A JVM is free to...
How to print (using cout) a number in binary form?
... value, then stream that to cout.
#include <bitset>
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char a = -58;
std::bitset<8> x(a);
std::cout << x << '\n';
short c = -315;
std::bitset<16> y(c);
std::cout << y << '\n';
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How do I run IDEA IntelliJ on Mac OS X with JDK 7?
I use Mac OS X 10.8.2, and use JDK 7. Now I downloaded the latest version of IDEA IntelliJ, 11. But it doesn't seem to start without JDK 6. Is there any workaround?
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How to get whole and decimal part of a number?
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180
$n = 1.25;
$whole = floor($n); // 1
$fraction = $n - $whole; // .25
Then compare against...
What is an unsigned char?
...s, use:
signed char, which gives you at least the -127 to 127 range. (-128 to 127 is common)
unsigned char, which gives you at least the 0 to 255 range.
"At least", because the C++ standard only gives the minimum range of values that each numeric type is required to cover. sizeof (char) is requi...
How to delete multiple values from a vector?
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8 Answers
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Active
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How can I output UTF-8 from Perl?
I am trying to write a Perl script using the "utf8" pragma, and I'm getting unexpected results. I'm using Mac OS X 10.5 (Leopard), and I'm editing with TextMate. All of my settings for both my editor and operating system are defaulted to writing files in utf-8 format.
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