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How does the bitwise complement operator (~ tilde) work?
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44
One other thing maybe to mention is that the flip is called 1s complement, before adding the 1.
– Chris S
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How expensive is RTTI?
...reflect the change in runtime memory usage.
A quick experiment (using GCC 4.4.3 on Ubuntu 10.04 64-bit) shows that -fno-rtti actually increases the binary size of a simple test program by a few hundred bytes. This happens consistently across combinations of -g and -O3. I'm not sure why the size wou...
How do I convert an integer to binary in JavaScript?
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answered Apr 22 '13 at 19:43
fernandosaviofernandosavio
6,82233 gold badges2020 silver badges3232 bronze badges
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How to change XAMPP apache server port?
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324
To answer the original question:
To change the XAMPP Apache server port here the procedure :
1...
What is the size of column of int(11) in mysql in bytes?
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An INT will always be 4 bytes no matter what length is specified.
TINYINT = 1 byte (8 bit)
SMALLINT = 2 bytes (16 bit)
MEDIUMINT = 3 bytes (24 bit)
INT = 4 bytes (32 bit)
BIGINT = 8 bytes (64 bit).
The length just specifies how many characters...
How do I convert a float number to a whole number in JavaScript?
...gt; 0 // -5 -5 -5
value >>> 0 // 4294967291 4294967291 4294967291
value - value % 1 // -5 -5 -5
Positive - Larger numbers
// x = Number.MAX_SAFE_INTEGER/10 // =900719925474099.1
// value=x x=900719925474099 x=9007199...
Is it bad practice to make a setter return “this”?
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answered Aug 28 '09 at 4:36
Tom CliftTom Clift
2,2672121 silver badges1818 bronze badges
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What does ~~ (“double tilde”) do in Javascript?
...se +x or Number(x) instead.
How this is the NOT of the NOT
The number -43.2, for example is:
-43.210 = 111111111111111111111111110101012
as a signed (two's complement) 32-bit binary number. (JavaScript ignores what is after the decimal point.) Inverting the bits gives:
NOT -4310 = 00000000000...
How do I format a long integer as a string without separator in Java?
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64
Just use Long.toString(long foo)
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fatal error: Python.h: No such file or directory
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edited Aug 21 '19 at 4:05
answered Feb 3 '14 at 15:10
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