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What is the difference between char array and char pointer in C?
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gsamaras
64.5k3131 gold badges140140 silver badges240240 bronze badges
answered Apr 17 '12 at 7:15
JonJon
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How many bytes does one Unicode character take?
...Nº: 8364
UTF-8: E2 82 AC
UTF-16: 20 AC
U+2122 TRADE MARK SIGN: ™
Nº: 8482
UTF-8: E2 84 A2
UTF-16: 21 22
U+2603 SNOWMAN: ☃
Nº: 9731
UTF-8: E2 98 83
UTF-16: 26 03
U+260E BLACK TELEPHONE: ☎
Nº: 9742
UTF-8: E2 98 8E
UTF-16: 26 0E
U+2614 UMBRELLA WITH RAIN DROPS: ☔
Nº: 9748
UTF-8: E2...
What's the (hidden) cost of Scala's lazy val?
...d some rule of thumb when to use, when to avoid?
– ib84
Mar 9 '13 at 17:46
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Memory address of variables in Java
... that identity hash codes are not guaranteed to be unique. For instance on 64-bit JVM there are 2^32 identity hash codes but 2^64 memory addresses.
– Alex Jasmin
Dec 25 '09 at 14:42
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Ruby max integer
...t to how big they can be.
If you are looking for the machine's size, i.e. 64- or 32-bit, I found this trick at ruby-forum.com:
machine_bytes = ['foo'].pack('p').size
machine_bits = machine_bytes * 8
machine_max_signed = 2**(machine_bits-1) - 1
machine_max_unsigned = 2**machine_bits - 1
If you ...
How to find the mysql data directory from command line in windows
...----+
| basedir | /usr/local/mysql-5.7.17-macos10.12-x86_64/ |
| character_sets_dir | /usr/local/mysql-5.7.17-macos10.12-x86_64/share/charsets/ |
| datadir | /usr/local/mysql/data/ |
| innodb_data_home_dir ...
PHP memory profiling
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zombatzombat
84.8k2121 gold badges148148 silver badges160160 bronze badges
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Why do Java webapps use .do extension? Where did it come from?
...to make yourself less of a target is a positive.
– XP84
Mar 3 '17 at 19:52
By default, the response headers would be e...
How do you specify the Java compiler version in a pom.xml file?
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davidxxxdavidxxx
96.2k1212 gold badges135135 silver badges154154 bronze badges
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What is a “surrogate pair” in Java?
...a pair of surrogates 0xD834 0xDD1E (2 by 2 bytes),
in UTF-8 as 0xF0 0x9D 0x84 0x9E (4 by 1 byte),
in UTF-32 as 0x0001D11E (1 by 4 bytes).
Current situation
Although according to the standard the surrogates are specifically assigned only to UTF-16, historically some Windows and Java application...