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Is unsigned integer subtraction defined behavior?
...t can be
represented by the resulting type.
(ISO/IEC 9899:1999 (E) §6.2.5/9)
As you can see, (unsigned)0 - (unsigned)1 equals -1 modulo UINT_MAX+1, or in other words, UINT_MAX.
Note that although it does say "A computation involving unsigned operands can never overflow", which might lead ...
Scala: Nil vs List()
...intln (Nil equals List())
true
scala> System.identityHashCode(Nil)
374527572
scala> System.identityHashCode(List())
374527572
Nil is more idiomatic and can be preferred in most cases.
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How to convert an enum type variable to a string?
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“cannot resolve symbol R” in Android Studio
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John Carmack's Unusual Fast Inverse Square Root (Quake III)
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answered Aug 28 '09 at 21:52
RushyoRushyo
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Python: Continuing to next iteration in outer loop
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for i in ...:
for j in ...:
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Pad a string with leading zeros so it's 3 characters long in SQL Server 2008
...ring that is up to 3 characters long when it's first created in SQL Server 2008 R2.
17 Answers
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Use 'import module' or 'from module import'?
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edited Jan 27 '14 at 22:14
NullUserException
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What is the difference between float and double?
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Huge difference.
As the name implies, a double has 2x the precision of float[1]. In general a d...
fork() branches more than expected?
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The fork() primitive often stretches the imagination. Until you get a feel for it, you should...