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  • 大小: 172KB
    文件類型: .rar
    金幣: 2
    下載: 0 次
    發布日期: 2021-06-29
  • 語言: 其他
  • 標簽: C++??yacc??計算器??

資源簡介

一個自己寫的命令行下交互式計算器,支持四則混合運算,優先級,循環表達式,條件表達式,函數等,變量定義有作用域, 支持自定義函數, 支持矩陣運算和復數. 本程序使用yacc生成表達式分析器, *.l文件需要flex來編譯,*.y文件使用bison編譯. 此源代碼僅供學習和參考

資源截圖

代碼片段和文件信息

#include?“variary.h“
#include?
#include?
#include?“interface.h“
#include?
#include?

char*?trimleft(const?char*?str)
{
char*??p?=?(char*)?str;
while(*p?&&?isspace(*p))
{
p++;
}
return?p;
}



class?COutput?:?public?IOutput
{
public:
virtual?int?OutputString(const?char*?str)
{
std::cout?< return?0;
}
virtual?char*??GetLine(char*?buf?int?len)
{
std::cin.getline(buf?len);
return?trimleft(buf);
}
};

BOOL?WINAPI?HandlerRoutine(
??DWORD?dwCtrlType???//??control?signal?type
);

IMiniCalc*?pCalc?=?NULL;

int?main(int?argc?char**?argv)
{
SetConsoleCtrlHandler(HandlerRoutine?TRUE);
COutput????output;
pCalc?=?CreateMiniCalc(&output);

if(pCalc?==?NULL)
{
std::cout?< return?1;
}

// CBigInt???bi(“0xffffbfbbcbbfffdeebbc“);
// CBigInt???ff(“0x87987932487324fedcdddcdaac“);


// std::cout?<// <
while(1)
{
std::cout?<“;

char?line[65536];
std::cin.getline(linesizeof(line));
char?*?cmd?=?trimleft(line);
if(!stricmp(cmd?“quit“)?||?
!stricmp(cmd?“exit“))
{
break;
}
pCalc->Execute(line);
}

pCalc->Destroy();

return?0;
}

BOOL?WINAPI?HandlerRoutine(
??DWORD?dwCtrlType???//??control?signal?type

{
switch(dwCtrlType)
{
case?CTRL_C_EVENT:
case?CTRL_BREAK_EVENT:
case?CTRL_CLOSE_EVENT:
case?CTRL_LOGOFF_EVENT:
case?CTRL_SHUTDOWN_EVENT:
if(pCalc)
{
pCalc->Destroy();
ExitProcess(0);
}
break;
}
return?TRUE;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1676??2006-09-03?16:57??MiniCalc\Calc.cpp

?????文件???????1130??2006-01-06?15:50??MiniCalc\debug.cpp

?????文件????????870??2006-01-06?15:50??MiniCalc\debug.h

?????文件???????2665??2007-06-22?21:03??MiniCalc\exception.cpp

?????文件???????1985??2007-06-22?21:03??MiniCalc\exception.h

?????文件?????????85??2006-08-31?11:30??MiniCalc\expression.cpp

?????文件??????17508??2006-10-12?20:38??MiniCalc\expression.h

?????文件????????423??2006-08-31?09:34??MiniCalc\FunctionImp.cpp

?????文件???????1113??2006-08-31?11:09??MiniCalc\FunctionImp.h

?????文件????????596??2006-09-03?14:59??MiniCalc\FunctionInterface.h

?????文件???????1278??2006-09-03?16:12??MiniCalc\Global.cpp

?????文件???????3526??2007-06-22?21:07??MiniCalc\Global.h

?????文件????????350??2006-08-31?21:10??MiniCalc\interface.h

?????文件??????18088??2007-06-28?20:45??MiniCalc\MiniCalc.cpp

?????文件???????7788??2007-06-21?20:26??MiniCalc\MiniCalc.dsp

?????文件????????539??2006-01-06?10:28??MiniCalc\MiniCalc.dsw

?????文件????????559??2006-09-03?15:52??MiniCalc\MiniCalc.h

?????文件?????319488??2007-06-28?20:46??MiniCalc\Release\MiniCalc.exe

?????文件??????69587??2007-06-21?15:59??MiniCalc\Release\minicalc.exe.output

?????文件???????1514??2009-12-19?22:36??MiniCalc\Release\UserDefined.txt

?????文件??????42582??2007-06-21?20:25??MiniCalc\sentence.cpp

?????文件???????1291??2007-06-21?20:25??MiniCalc\sentence.h

?????文件???????9934??2007-06-21?16:40??MiniCalc\sentence.y

?????文件?????????31??2006-08-31?11:33??MiniCalc\sentence_class.cpp

?????文件???????1930??2007-06-21?16:42??MiniCalc\sentence_class.h

?????文件????????723??2006-02-05?17:15??MiniCalc\Stack.cpp

?????文件????????917??2006-08-30?14:11??MiniCalc\Stack.h

?????文件?????????30??2006-09-06?10:58??MiniCalc\statement.cpp

?????文件????????229??2006-09-06?10:59??MiniCalc\statement.h

?????文件???????1573??2006-10-11?11:50??MiniCalc\symbol.cpp

............此處省略14個文件信息

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