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user:mgardne8:portfolio:notescrap [2014/09/02 10:09] mgardne8user:mgardne8:portfolio:notescrap [2014/09/02 10:34] (current) mgardne8
Line 1: Line 1:
 __Pointers__ __Pointers__
 +  int = 4 bytes
 +  short = 2 bytes
  
-Grid - 1byte 8bits+  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)
  
-2^8  - 256 
-         Int  a; (43;44;45;46) 
-         Int  b; (           ) 
-         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|    |0|1|2|3|4|5|6|7|
   ------------------   ------------------
Line 17: Line 22:
   3| | | | | | | | |   3| | | | | | | | |
   ------------------   ------------------
-  4| | | |a|a|a|a| |+  4| | | |a|a|a|a|b|
   ------------------   ------------------
-  5| | | | | | | | |+  5|b|b|b|j|j|k|k|c|
   ------------------   ------------------
-  6|c|c|c|c|c|c|c|c|+  6|c|c|c|c|c|c|c|q|
   ------------------   ------------------
-  7| | | | | | | | |+  7|q| | | | | | | |
   ------------------   ------------------
  
 +----------------------------
 +  Grid - 1byte = 8bits
 ---------------------------- ----------------------------
   bc -l   bc -l
Line 32: Line 39:
   2^32 = 4294967296   2^32 = 4294967296
   2^64 = 18446744073709551616   2^64 = 18446744073709551616
-----------------------------+---------------------------
   X64 0x0000000000000000   X64 0x0000000000000000
 +---------------------------
  
-  int bytes +  int g[4]; 
-  short 2 bytes+  int *g=(int *)malloc(sizeof(int)*4);
      
 +  g[0]     7;
 +  g[1]     3;
 +  *(g+2) =  13;
 +  g[2]    13;
 +  
 +--------------------
 +
 +
 +
  
  
user/mgardne8/portfolio/notescrap.1409666963.txt.gz · Last modified: 2014/09/02 10:09 by mgardne8