摘要： Static type language: c++, Object Pascal ...Dynamic type language: Smalltalk, Objective-C ...Static type language prefer to behave object by class, ... 阅读全文

摘要： A class should have follow 4 functions:1. default constructor2.copy contructor3.operator =4.destructor 阅读全文

摘要： For example: 10 apples, 9 boxes, then at least one box have two apples.Hash table's repeat problem is inevitable, because the number of Keys is alway... 阅读全文

摘要： Message-digest Algorithm 5 阅读全文

摘要： Encryption process does not request the use of a encryption key, because the key is input plaintext itself. 阅读全文

摘要： Request for commentsIs a series numbers scheduled file, documents collected Internet-related information, and software files for UNIX and Internet com... 阅读全文

摘要： feof's definition in stdio.h:#define _IOEOF 0x0010#define feof(_stream) ((_stream)->_flag & _IOEOF)From here we know only _flag equal to _IOEOF then feof() return 1. When file position indicator arrive to end of file, and read/write again, the fp->_flag set to _IOEOF, then call feof() 阅读全文

摘要： Template class's decalaration and implementation should place in the header file together.If separate them, then the complier will report "unresolved external symbol ..."I know they can separate, but I need more skills, so come on. 阅读全文

摘要： 1 .bss不占磁盘空间2 自定义的段名不能使用"."作为前缀3.指定变量的段： _attribute_(section("foo")) int global = 42; 阅读全文

摘要： 1 #include 2 #include 3 4 int main() 5 { 6 using std::cout; 7 using std::endl; 8 9 for(int i=0; i7 && j11 && j=7 && j 7 && j8 && j9 && j19 && j<23))) 30 cout<... 阅读全文