user:mgardne8:portfolio:notescrap
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Pointers
Grid - 1byte = 8bits
2^8 - 256
Int a = 5; (43;44;45;46)
Int b = 6; (47;50;51;52)
Short j = 2; (53;54)
Int *c = ; (60;61;62;63;64;65;66;67;68)
[Contains Adress for a(43;44;45;46)
[* = Dereferencing operator]
|0|1|2|3|4|5|6|7|
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0| | | | | | | | |
------------------
1| | | | | | | | |
------------------
2| | | | | | | | |
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3| | | | | | | | |
------------------
4| | | |a|a|a|a|b|
------------------
5|b|b|b|j|j| | | |
------------------
6|c|c|c|c|c|c|c|c|
------------------
7| | | | | | | | |
------------------
bc -l 2^8 = 256 2^16 = 65536 2^32 = 4294967296 2^64 = 18446744073709551616
—————————-
X64 0x0000000000000000
int = 4 bytes short = 2 bytes
user/mgardne8/portfolio/notescrap.1409667067.txt.gz · Last modified: 2014/09/02 10:11 by mgardne8