cassper的专栏

1 With the introduction of new devices and extended character sets, new features may beadded to this International Standard. Subclauses in the language and library clauses warnimplementors and program

来源: http://dev.youkuaiyun.com/user/lithe在所有的预处理指令中，#Pragma 指令可能是最复杂的了，它的作用是设定编译器的状态或者是指示编译器完成一些特定的动作。#pragma指令对每个编译器给出了一个方法,在保持与C和C++语言完全兼容的情况下,给出主机或操作系统专有的特征。依据定义,编译指示是机器或操作系统专有的,且对于每个编译器都是不同的。其格式一般为:

/*** 安全过河问题：* 三个商人各带一名随从准备过河，可是只有一只船，* 船上只能容纳两个人，并且在河的任何一岸，如果随从数目大于商人数，* 随从就会杀掉商人！问商人如何安全过河！**/#include int accrossriver(int i){ if ( 2 == i ) {

/*** 循环队列实现* chenbdchenbd@gmail.com*/#include #include #define RING_BUF_LEN (5)#define RING_BUF_OK (0x00)#define RING_BUF_NG (0xff)#define R

/** * stack* chenbdchenbd@gmail.com**/#include #include #define STACK_BUF_LEN (5)#define STACK_OK (0x00)#define STACK_NG (0xff)//#define STAC

/*** 自己动手写的内存管理程序* 完善中* chenbdchenbd@gmail.com**/#include #include #include #define MM_OK (0x00)#define MM_NG (0xff)#define MM_UNIT ((uns

/*** menmory management module* chenbdchenbd@gmail.com**/#include #include #include #define MM_OK (0x00)#define MM_NG (0xff)#define MM_UNIT ((uns

/*** menmory management module* chenbdchenbd@gmail.com**/#include #include #include #define MM_OK (0x00)#define MM_NG (0xff)#define MM_UNIT ((uns

       int i=1;　　int j; 　　j=(++i)+(++i)+(++i)+(++i);　　int i=1; 　　int j; 　　j=(++i)+(++i)+(i++)+(i++)+(++i);

1 Several operators convert operand values from one type to another automatically. Thissubclause specifies the result required from such an implicit conversion, as well as thosethat result from a cast

5. Environment1 An implementation translates C source files and executes C programs in two dataprocessing-system environments, which will be called the translation environment andthe execution environ

Foreword1 ISO (the International Organization for Standardization) and IEC (the InternationalElectrotechnical Commission) form the specialized system for worldwidestandardization. National bodies that

3. Terms, definitions, and symbols1 For the purposes of this International Standard, the following definitions apply. Otherterms are defined where they appear in italic type or on the left side of a s

1 This International Standard specifies the form and establishes the interpretation ofprograms written in the C programming language.1) It specifies— the representation of C programs;— the syntax and

4. Conformance1 In this International Standard, ‘‘shall’’ is to be interpreted as a requirement on animplementation or on a program; conversely, ‘‘shall not’’ is to be interpreted as aprohibition.2 If

6.1 Notation1 In the syntax notation used in this clause, syntactic categories (nonterminals) areindicated by italic type, and literal words and character set members (terminals) by boldtype. A colon

6.2.1 Scopes of identifiers1 An identifier can denote an object; a function; a tag or a member of a structure, union, orenumeration; a typedef name; a label name; a macro name; or a macro parameter. T

Syntax1 token:keywordidentifierconstantstring-literalpunctuatorpreprocessing-token:header-nameidentifierpp-numbercharacter-constantstring-literalpunctuatoreach non-white-space character that cannot be

1 Anexpression is a sequence of operators and operands that specifies computation of avalue, or that designates an object or a function, or that generates side effects, or thatperforms a combination t

stack over flow