bf1 expansions

implementations of each compiler are different.Type, Dev-C ++ adopts the compression method;4) do not compress fields that are interspersed with non-bit fields;5) the total size of the entire struct is an integer multiple of the size of the widest basic type. Let's take a look at the example.Example 1:Struct bf1{Char F1: 3;Char F2: 4;Char F3: 5;};Its memory layout is:| _ F1 __|__ F2 __| _ | ____ F3 ___ | ____ || _ |0 3 7 8 1316The bit field type is C

, but almost all compilers have extended these types to allow the existence of other types. The main purpose of bit domains is to compress storage. The general rules are as follows:1) if the types of adjacent fields are the same, and the sum of the bit widths is smaller than the sizeof size of the type, the subsequent fields will be stored next to the previous field until they cannot be accommodated;2) If the Field Types of adjacent bit fields are the same, but the sum of Bit Width is greater th

field until they cannot be accommodated; 2) If the Field Types of adjacent bit fields are the same, but the sum of Bit Width is greater than the sizeof size of the type, the subsequent fields start from the new storage unit, its offset is an integer multiple of its type; 3) if the types of adjacent bit field are different, the implementations of each compiler are different. vc6 adopts the non-compression mode and Dev-C ++ adopts the compression mode; 4) do not compress fields that are intersper

streamingcontext (streamingcontextstates. crossprocess, process. getcurrentprocess (). processname ); // Set iformatter. Context VaR bf1 = new binaryformatter (null, context ); // Serialization Bf1.serialize (MS, new ()); // Assume deserialization in another process Ms. Seek (0, seekorigin. Begin ); VaR bf2 = new binaryformatter (); Bf2.deserialize (MS ); } } } } Output: Source Process: mgen When the

, and bool can be used as bit domain types, but almost all compilers have extended this, allowingOther types may exist.The main purpose of bit domains is to compress storage. The general rules are as follows:1) if the type of the adjacent bit field is the same and the sum of its bit width is smaller than the sizeof size of the typeStore the preceding field until it cannot be accommodated;2) If the types of adjacent bit fields are the same, but the sum of Bit Width is greater than the sizeof size

#include #includeusing namespacestd;intFuncintAintb) { returnA +b;}classfoo{ Public: intFuncintAintb) {returnA +b; }};intMain () {Auto Bf1= Std::bind (func,Ten, std::p laceholders::_1); cout -) Endl; Foo F; Auto BF2= Std::bind (Foo::func, F, std::p laceholders::_1, std::p laceholders::_2); cout -, -) Endl; Std::functionint(int) > BF3 = Std::bind (foo::func, F, std::p laceholders::_1, -); cout -) Endl; return 0;}Bind is a mechanism that can pr

memory layout for C + + objects (bottom) The class memory layout of " single virtual Inheritance " and " Diamond type Virtual inheritance " in this article is not very clear, I have a question, I use VS2005, so record.The class inheritance diagram is as follows:Here: Class B is inherited by the class B1 and B2, while B1 and B2 are both inherited by D.B1 f (), B2 F ( ) covers the F () of B;D's F () covers the B1 f (), and D's F1 () covers the B1 F1 ()D's F () covers the B2 f (), and D's F2 () cov

accommodated;2) If the adjacent bit field field has the same type, but its bit width is greater than the type sizeof size, then the following field willStarting from the new storage unit, its offset is an integer multiple of its type size;3) If there are different types of adjacent bit field fields, the specific implementation of each compiler will differ, VC6 take the non-compression method, dev-c++ adopt compression method;4) If the bit field fields are interspersed with non-bit field fields,

Comprehensive online tutorials, plus their own practice to come up with the method, currently able to compatible with Google, IE11, IE10. There is nothing special about the contents of the HTMLBody. To read a binary file: function Uploadandsubmit () { Filename=document.getelementbyid ("Str_file"). Value; var form = document.forms["Demoform"]; if (filename!= "") { try { var obj = new ActiveXObject ("ADODB.") Stream ");//This must be ie catch (e) { var file = form[" file "].

The example in this article describes how JScript reads and writes binary files. Share to everyone for your reference. The implementation method is as follows: var bin = new Array (256); for (Var i=0;i Examples of usage are as follows: var crfolder = ' c:/temp/cr ' var bf1=new binaryfile (crfolder+ "/pcdv0026". JPG "); var bf2=new binaryfile (crfolder+ "/pcdv0026_. JPG "); Bf2. Writeall (Bf1