Lab46 Wiki

User Tools

Site Tools

You are here: start » user » mgardne8 » portfolio » notescrap
user:mgardne8:portfolio:notescrap

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
user:mgardne8:portfolio:notescrap [2014/09/02 09:41] – mgardne8user:mgardne8:portfolio:notescrap [2014/09/02 10:34] (current) – mgardne8
Line 1: Line 1:
 __Pointers__ __Pointers__
 +  int = 4 bytes
 +  short = 2 bytes
 +
 +  Int    a =  5; (43;44;45;46)
 +  Int    b =  6; (47;50;51;52)
 +  Short  j =  2; (53;54)
 +  Short  k =  1; (55;56)
 +  Int   *c = &a; (57;60;61;62;63;64;65;66)
 +                 [Contains Address for Int a; (43;44;45;46)
 +                 [* = Dereferencing operator]
 +  Short  q = 77; (67;70)
 +
 +   |0|1|2|3|4|5|6|7|
 +  ------------------
 +  0| | | | | | | | |
 +  ------------------
 +  1| | | | | | | | |
 +  ------------------
 +  2| | | | | | | | |
 +  ------------------
 +  3| | | | | | | | |
 +  ------------------
 +  4| | | |a|a|a|a|b|
 +  ------------------
 +  5|b|b|b|j|j|k|k|c|
 +  ------------------
 +  6|c|c|c|c|c|c|c|q|
 +  ------------------
 +  7|q| | | | | | | |
 +  ------------------
 +
 +----------------------------
 +  Grid - 1byte = 8bits
 +----------------------------
 +  bc -l
 +  2^8  = 256
 +  2^16 = 65536
 +  2^32 = 4294967296
 +  2^64 = 18446744073709551616
 +---------------------------
 +  X64 0x0000000000000000
 +---------------------------
 +
 +  int g[4];
 +  int *g=(int *)malloc(sizeof(int)*4);
 +  
 +  g[0]   =   7;
 +  g[1]   =   3;
 +  *(g+2) =  13;
 +  g[2]   =  13;
 +  
 +--------------------
 +
 +
 +
 +
 +
 +
  
  
user/mgardne8/portfolio/notescrap.1409665318.txt.gz · Last modified: 2014/09/02 09:41 by mgardne8