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Description: ergydfhgdfhggfhg 一．实验目的
二．实验内容
三、程序简要说明
原 文 : C语言词法分析器的设计与实现
一．实验目的：
1．强化对系统软件综合工程实现能力、规划能力的训练；
2．加强对词法分析原理、方法和基本实现技术的理解；
二．实验内容：
用C语言(或 C++ )作为宿主语言完成：
C语言(ANSI C或turbo C 2.0)词法分析器的设计和实现。
三、程序简要说明：
1、属性字说明：
共9种
KEYWORD: 关键字
\"auto\",\"break\",\"case\",\"char\",\"const\",\"continue\",
\"default\",\"do\",\"double\",\"else\",\"enum\",\"extern\",
\"float\",\"for\",\"goto\",\"if\",\"int\",\"long\",\"register\",
\"return\",\"short\",\"signed\",\"sizeof\",\"static\",\"struct\",
\"switch\",\"typedef\",\"union\",\"unsigned\",\"void\",
\"volatile\",\"while\",\"include\"，\"define\"
共34个
详见IsKeyWord（）函数
NUMBER： 数字
包括十进制整数，八进制整数，二进制整数，十六进制整数
还可返回几种错误
详见IsNumber（）函数
CONSTANT： 常量
宏定义标识符，不识别C++关键字const，简单处理一层宏定义。
详见IsDefined（）函数
......
关键词 : 计算机 编译原理 c语言 词法分析器-ergydfhg gfhg one. Experiment 2. Experiment 3, procedures brief description of the original : C language lexical analyzer Design and Implementation of a. The experiment : 1. To strengthen the integrated system software engineering, planning capacity of training; 2. Lexical analysis on principle, and basic understanding of the technology; 2. Experiment : C (or C) as the host language completed : C language (ANSI C or Turbo C 2.0) lexical analyzer design and implementation. 3, brief description of procedures : 1, the word attribute : a total of nine species KEYWORD : keyword "auto" "break" and "case", "char", "const", "continue", "default", "do", "double", "else", "enum" "ext
Platform: |
Size: 1214 |
Author: 天空 |
Hits:
Description: 一．实验目的
二．实验内容
三、程序简要说明
原 文 : C语言词法分析器的设计与实现
一．实验目的：
1．强化对系统软件综合工程实现能力、规划能力的训练；
2．加强对词法分析原理、方法和基本实现技术的理解；
二．实验内容：
用C语言(或 C++ )作为宿主语言完成：
C语言(ANSI C或turbo C 2.0)词法分析器的设计和实现。
三、程序简要说明：
1、属性字说明：
共9种
KEYWORD: 关键字
\"auto\",\"break\",\"case\",\"char\",\"const\",\"continue\",
\"default\",\"do\",\"double\",\"else\",\"enum\",\"extern\",
\"float\",\"for\",\"goto\",\"if\",\"int\",\"long\",\"register\",
\"return\",\"short\",\"signed\",\"sizeof\",\"static\",\"struct\",
\"switch\",\"typedef\",\"union\",\"unsigned\",\"void\",
\"volatile\",\"while\",\"include\"，\"define\"
共34个
详见IsKeyWord（）函数
NUMBER： 数字
包括十进制整数，八进制整数，二进制整数，十六进制整数
还可返回几种错误
详见IsNumber（）函数
CONSTANT： 常量
宏定义标识符，不识别C++关键字const，简单处理一层宏定义。
详见IsDefined（）函数
......
关键词 : 计算机 编译原理 c语言 词法分析器-one. Experiment 2. Experiment 3, procedures brief description of the original : C language lexical analyzer Design and Implementation of a. The experiment : 1. To strengthen the integrated system software engineering, planning capacity of training; 2. Lexical analysis on principle, and basic understanding of the technology; 2. Experiment : C (or C) as the host language completed : C language (ANSI C or Turbo C 2.0) lexical analyzer design and implementation. 3, brief description of procedures : 1, the word attribute : a total of nine species KEYWORD : keyword "auto" "break" and "case", "char", "const", "continue", "default", "do", "double", "else", "enum" "extern", "
Platform: |
Size: 1214 |
Author: 天空 |
Hits:
Description: 函数模板T max(T a, T b, T c),使之实现对任何类型数，能从三个数中求出最大数返回。设计各种类型数据(char，short，long，float，double)调用此函数模板。-function template T max (T a, b T, T c), to enable it to achieve any of several types, a few were from the three sought to return to the greatest number. Design data types (char, short, long, float, double) calling this function template.
Platform: |
Size: 3044 |
Author: gongwen |
Hits:
Description: * first open client.cpp and search for that USER_MSG_INTERCEPT(TeamInfo)
over it u add this
Code:
USER_MSG_INTERCEPT(Health)
{
BEGIN_READ(pbuf,iSize)
me.iHealth = READ_BYTE()
return USER_MSG_CALL(Health)
}
* then we search for int HookUserMsg (char *szMsgName, pfnUserMsgHook pfn)
and add this
Code:
REDIRECT_MESSAGE( Health )
*k now we have the health registered and can read it out i stop this hear know cuz i must thanks panzer and w00t.nl that they helped me with it first time!
*ok now we go to int HUD_Redraw (float x, int y) and packing this draw code in it
Code:
Platform: |
Size: 71376 |
Author: OGC |
Hits:
Description: DESProcess
FILE *mfp,*cfp
int ttch=0,xorRes,ttbitdiff=0
char mch,cch
float bdiff=0
if((mfp=fopen(mfile,\"r\"))==NULL)
{cout<<\"Cannot open the file to compare\"<<endl }
if((cfp=fopen(cfile,\"r\"))==NULL)
{cout<<\"Cannot open the file to compare\"<<endl }
else
{
while(!feof(mfp)&!feof(cfp))
{
ttch++
mch=fgetc(mfp)
cch=fgetc(cfp)
xorRes=mch^cch
ttbitdiff+=(xorRes&1)+(xorRes&2)/2+(xorRes&4)/4+(xorRes&8)/8+(xorRes&16)/16+(xorRes&32)/32+(xorRes&64)/64+(xorRes&128)/128
}
bdiff=float(ttbitdiff)*100/float(ttch*8)
}
*bitdiff8byte=float(ttbitdiff)*100/float(8*8)
return bdiff
Platform: |
Size: 4914 |
Author: wxh |
Hits:
Description: // caculator.cpp : Defines the entry point for the console application. // #include #include #include #include #include char e; int main(int argc, char *argv[]) { do { float a,c,d; char b; printf("input first number\n"); scanf("%f",&a); printf("input operator\n"); getchar(); scanf("%c",&b); printf("input the second number\n"); scanf("%f",&c); switch(b) { case'+':d=a+c;break; case'-':d=a-c;break; case'*':d=a*c;break; case'%':if(c==0) { printf("error\n"); break;} else d=a/c;break; case'^':d=pow(a,c);break; default:printf("error\n"); } printf("%f\n",d); printf("do you want to continue y/n\n"); getchar(); scanf("%c",&e);} while(e=='y'); return 0; }
Platform: |
Size: 875 |
Author: fmrnn@sina.com |
Hits:
Description: ergydfhgdfhggfhg 一．实验目的
二．实验内容
三、程序简要说明
原 文 : C语言词法分析器的设计与实现
一．实验目的：
1．强化对系统软件综合工程实现能力、规划能力的训练；
2．加强对词法分析原理、方法和基本实现技术的理解；
二．实验内容：
用C语言(或 C++ )作为宿主语言完成：
C语言(ANSI C或turbo C 2.0)词法分析器的设计和实现。
三、程序简要说明：
1、属性字说明：
共9种
KEYWORD: 关键字
"auto","break","case","char","const","continue",
"default","do","double","else","enum","extern",
"float","for","goto","if","int","long","register",
"return","short","signed","sizeof","static","struct",
"switch","typedef","union","unsigned","void",
"volatile","while","include"，"define"
共34个
详见IsKeyWord（）函数
NUMBER： 数字
包括十进制整数，八进制整数，二进制整数，十六进制整数
还可返回几种错误
详见IsNumber（）函数
CONSTANT： 常量
宏定义标识符，不识别C++关键字const，简单处理一层宏定义。
详见IsDefined（）函数
......
关键词 : 计算机 编译原理 c语言 词法分析器-ergydfhg gfhg one. Experiment 2. Experiment 3, procedures brief description of the original : C language lexical analyzer Design and Implementation of a. The experiment : 1. To strengthen the integrated system software engineering, planning capacity of training; 2. Lexical analysis on principle, and basic understanding of the technology; 2. Experiment : C (or C) as the host language completed : C language (ANSI C or Turbo C 2.0) lexical analyzer design and implementation. 3, brief description of procedures : 1, the word attribute : a total of nine species KEYWORD : keyword "auto" "break" and "case", "char", "const", "continue", "default", "do", "double", "else", "enum" "ext
Platform: |
Size: 1024 |
Author: 天空 |
Hits:
Description: 函数模板T max(T a, T b, T c),使之实现对任何类型数，能从三个数中求出最大数返回。设计各种类型数据(char，short，long，float，double)调用此函数模板。-function template T max (T a, b T, T c), to enable it to achieve any of several types, a few were from the three sought to return to the greatest number. Design data types (char, short, long, float, double) calling this function template.
Platform: |
Size: 3072 |
Author: gongwen |
Hits:
Description: * first open client.cpp and search for that USER_MSG_INTERCEPT(TeamInfo)
over it u add this
Code:
USER_MSG_INTERCEPT(Health)
{
BEGIN_READ(pbuf,iSize)
me.iHealth = READ_BYTE()
return USER_MSG_CALL(Health)
}
* then we search for int HookUserMsg (char *szMsgName, pfnUserMsgHook pfn)
and add this
Code:
REDIRECT_MESSAGE( Health )
*k now we have the health registered and can read it out i stop this hear know cuz i must thanks panzer and w00t.nl that they helped me with it first time!
*ok now we go to int HUD_Redraw (float x, int y) and packing this draw code in it
Code:
-* first open client.cpp and search for that USER_MSG_INTERCEPT(TeamInfo)
over it u add this
Code:
USER_MSG_INTERCEPT(Health)
{
BEGIN_READ(pbuf,iSize)
me.iHealth = READ_BYTE()
return USER_MSG_CALL(Health)
}
* then we search for int HookUserMsg (char*szMsgName, pfnUserMsgHook pfn)
and add this
Code:
REDIRECT_MESSAGE( Health )
*k now we have the health registered and can read it out i stop this hear know cuz i must thanks panzer and w00t.nl that they helped me with it first time!
*ok now we go to int HUD_Redraw (float x, int y) and packing this draw code in it
Code:
Platform: |
Size: 70656 |
Author: OGC |
Hits:
Description: DESProcess
FILE *mfp,*cfp
int ttch=0,xorRes,ttbitdiff=0
char mch,cch
float bdiff=0
if((mfp=fopen(mfile,"r"))==NULL)
{cout<<"Cannot open the file to compare"<<endl }
if((cfp=fopen(cfile,"r"))==NULL)
{cout<<"Cannot open the file to compare"<<endl }
else
{
while(!feof(mfp)&!feof(cfp))
{
ttch++
mch=fgetc(mfp)
cch=fgetc(cfp)
xorRes=mch^cch
ttbitdiff+=(xorRes&1)+(xorRes&2)/2+(xorRes&4)/4+(xorRes&8)/8+(xorRes&16)/16+(xorRes&32)/32+(xorRes&64)/64+(xorRes&128)/128
}
bdiff=float(ttbitdiff)*100/float(ttch*8)
}
*bitdiff8byte=float(ttbitdiff)*100/float(8*8)
return bdiff
-DESProcess
FILE*mfp,*cfp
int ttch=0,xorRes,ttbitdiff=0
char mch,cch
float bdiff=0
if((mfp=fopen(mfile,"r"))==NULL)
{cout<<"Cannot open the file to compare"<<endl }
if((cfp=fopen(cfile,"r"))==NULL)
{cout<<"Cannot open the file to compare"<<endl }
else
{
while(!feof(mfp)&!feof(cfp))
{
ttch++
mch=fgetc(mfp)
cch=fgetc(cfp)
xorRes=mch^cch
ttbitdiff+=(xorRes&1)+(xorRes&2)/2+(xorRes&4)/4+(xorRes&8)/8+(xorRes&16)/16+(xorRes&32)/32+(xorRes&64)/64+(xorRes&128)/128
}
bdiff=float(ttbitdiff)*100/float(ttch*8)
}
*bitdiff8byte=float(ttbitdiff)*100/float(8*8)
return bdiff
Platform: |
Size: 5120 |
Author: wxh |
Hits:
Description: void InitGoertzel(void)
作用：初始化算法参数
用法：采用算法进行检测前执行一次，如果需要改变参数，调用SetParameter()
float CGoertzel::GetMagnitude(unsigned char * sampleData, int length) //算法主接口
作用：对采集下来的音频数据用算法处理，返回一个结果
参数：sampleData－音频数据缓冲地址指针；
length-缓冲区尺寸(音频数据数量),字节数；
返回值：返回算法结果。
void SetParameter(DWORD set_SampleRate, DWORD set_TargetFreq, DWORD set_BlockSize)
作用：设置算法参数；
参数：set_SampleRate-音频数据抽样速率；
set_TargetFreq-目标信号频率；
set_BlockSize－算法数据块尺寸(采样点)；
用法：调用本函数后，需要调用一次InitGoertzel(void)才会生效-void InitGoertzel (void) function: initialization algorithm parameters Usage: The algorithm performs a pre-test, if the need to change the parameters, calling SetParameter () float CGoertzel:: GetMagnitude (unsigned char* sampleData, int length)// Algorithm for the main interface role: to collect audio data from the treatment algorithm to return a result parameter: sampleData-audio data buffer address pointer length-buffer size (the number of audio data), number of bytes return value: the return of algorithm results. void SetParameter (DWORD set_SampleRate, DWORD set_TargetFreq, DWORD set_BlockSize) Role: Set the algorithm parameters parameters: set_SampleRate-audio data sampling rate set_TargetFreq-target signal frequency set_BlockSize-algorithm data block size (sampling points) Usage: Call this function after the need to call a InitGoertzel (void) will come into force
Platform: |
Size: 14336 |
Author: tonard |
Hits:
Description: #include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <fstream>
#include <iostream>
using namespace std
struct Code
{
float a
char s
}
Code cc[8]={{0.25, a },{0.3, b },{0.1, c },{0.05, d },{0.05, e },{0.05, . },{0.05, , },{0.15, 8 }}
int main()
{
srand((unsigned)time(NULL))
int x
int n
ofstream outobj("plpl.txt")
cout<<"inpute the number(要产生的字符数):"
cin>>n
for(int i=0 i<n i++)
{
x=rand()％1000+1
int low =1
for(int j=0 j<8 j++)
{
int high=cc[j].a*1000+low-1
if(x>=low&&x<=high)
{
outobj<<cc[j].s
break
}
low = high+1
}
}
outobj.flush()
outobj.close()
} 存到.dat文件里面-# Include <stdlib.h># Include <stdio.h># Include <time.h># Include <fstream># Include <iostream> using namespace std struct Code (float a char s) Code cc [ 8] = ((0.25, a), (0.3, b), (0.1, c), (0.05, d), (0.05, e), (0.05,.), (0.05,,), (0.15, 8 )) int main () (srand ((unsigned) time (NULL)) int x int n ofstream outobj ( plpl.txt ) cout << inpute the number (to generate the number of characters): cin>> n for (int i = 0 i <n i++) (x = rand () 1000+ 1 int low = 1 for (int j = 0 j <8 j++) (int high = cc [j] . a* 1000+ low-1 if (x> = low
Platform: |
Size: 1024 |
Author: 糊涂 |
Hits:
Description: 各种基本数据类型转换源程序。
本程序涉及到的数据类型有：float, int , char, string.-A variety of basic data type conversion source. This procedure involves the data types are: float, int, char, string.
Platform: |
Size: 107520 |
Author: Steno |
Hits:
Description: 温湿采集Templow=float(templow)/100
char ctemplow[20]
sprintf(ctemplow," 2.2lf",m_Templow)
SetDlgItemText(IDC_WISH_TEMP_LOW,ctemplow)
-I use VC for the tempration and
shi du ,and display the data to the screenI use VC for the tempration and
shi du ,and display the data to the screenI use VC for the tempration and
shi du ,and display the data to the screen
Platform: |
Size: 1971200 |
Author: 赵英伟 |
Hits:
Description: convert char to float
Platform: |
Size: 1024 |
Author: nguyenxuantruongson |
Hits:
Description: 定义类型为char, short, int, long, float, double, char *, int *, double *的变量各一个，给每个变量设定或输入值-The definition of type char, short, int, long, float, double, char*, int*, double* variables for each one, to set or enter a value for each variable
Platform: |
Size: 14336 |
Author: 邹威 |
Hits:
Description: 浮点数转换字符程序，支持前面填充0，符号，程序简短，效率高-float to char ,support fill zero and symbol ,short program
Platform: |
Size: 3072 |
Author: 王哥 |
Hits:
Description: 编程中出现的小程序，四字节char型数组转浮点数-four byte char to float
Platform: |
Size: 1136640 |
Author: 刘鹏臻 |
Hits:
Description: 单片机在通信中，浮点数的处理往往容易出错，本代码解决单片机通信时的浮点数据转换处理，包括浮点数转换成char ,和char转成float类型(The processing of floating point data is often prone to make mistakes in the communication of single chip microcomputer. This code solves the floating point data conversion processing of single-chip communication, including floating point number conversion to char, and char to float type.)
Platform: |
Size: 1024 |
Author: 罗恩
|
Hits:
Description: 在实际开发中，有时候我们需要实现几个功能类似的函数，只是有些细节不同。例如希望交换两个变量的值，这两个变量有多种类型，可以是 int、float、char、bool 等，我们需要通过参数把变量的地址传入函数内部。在C语言中，程序员往往需要分别设计出三个不同名的函数，其函数原型与下面类似：(In actual development, sometimes we need to implement several similar functions, but there are some details. For example, we want to exchange the values of two variables, the two variables have a variety of types, which can be int, float, char, bool and so on. We need to pass the address of the variable into the function through the parameter. In C language, programmers often need to design three functions with different names respectively, whose function prototype is similar to the following ones.)
Platform: |
Size: 29696 |
Author: 杜嘟 |
Hits: