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can some one ex-plane how typedef works under C? [Solved] - Page 3

post #21 of 25
Thread Starter 
Code:
#include <stdio.h>
#include <conio.h>
#include <windows.h>



typedef struct _calculator{
  
  int num1;
  int num2;
  char operation;     
       
}calculator;

int main(){

calculator fun;

printf("please input something to calculate\n");

scanf("%d%c%d",&fun.num1,&fun.operation,&fun.num2);

if(fun.operation == '+') printf("%d",fun.num1+fun.num2);

else if(fun.operation == '-') printf("%d",fun.num1-fun.num2);

else if(fun.operation == '/') printf("%d",fun.num1/fun.num2);

else if(fun.operation == '*') printf("%d",fun.num1*fun.num2);
 
else{
     
    HANDLE hStdout;
    hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
    SetConsoleTextAttribute(hStdout, FOREGROUND_RED);
    
    printf("please input somthing vaild\n");   
    getchar();
}   
    getchar();

}

my finished product smile.gif
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post #22 of 25
Quote:
Originally Posted by thecoredude98 View Post

Code:
#include <stdio.h>
#include <conio.h>
#include <windows.h>
typedef struct _calculator{
  
  int num1;
  int num2;
  char operation;     
       
}calculator;
int main(){
calculator fun;
printf("please input something to calculate\n");
scanf("%d%c%d",&fun.num1,&fun.operation,&fun.num2);
if(fun.operation == '+') printf("%d",fun.num1+fun.num2);
else if(fun.operation == '-') printf("%d",fun.num1-fun.num2);
else if(fun.operation == '/') printf("%d",fun.num1/fun.num2);
else if(fun.operation == '*') printf("%d",fun.num1*fun.num2);
 
else{
     
    HANDLE hStdout;
    hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
    SetConsoleTextAttribute(hStdout, FOREGROUND_RED);
    
    printf("please input somthing vaild\n");   
    getchar();
}   
    getchar();
}
my finished product smile.gif

Just for completeness, the last bit should probably be:
Code:
    HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
        if ( hStdout != INVALID_HANDLE_VALUE && hStdout )
        {
                SetConsoleTextAttribute(hStdout, FOREGROUND_RED);
                CloseHandle( hStdout );
        }
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post #23 of 25
Thread Starter 
Code:
#include <stdio.h>
#include <conio.h>
#include <windows.h>

typedef struct _calculator{
  
int num1;
int num2;
char operation;     
       
}calculator;
int main(){
calculator fun;
printf("please input something to calculate\n");
scanf("%d%c%d",&fun.num1,&fun.operation,&fun.num2);
if(fun.operation == '+') printf("%d",fun.num1+fun.num2);
else if(fun.operation == '-') printf("%d",fun.num1-fun.num2);
else if(fun.operation == '/') printf("%d",fun.num1/fun.num2);
else if(fun.operation == '*') printf("%d",fun.num1*fun.num2);
 
else{
     
HANDLE hStdout;
hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(hStdout, FOREGROUND_RED);
    
printf("please input somthing vaild\n");   
getchar();
}   

HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
if ( hStdout != INVALID_HANDLE_VALUE && hStdout )
{
SetConsoleTextAttribute(hStdout, FOREGROUND_RED);
CloseHandle( hStdout );
}
getchar();
}



thanks for the help you taught me something i was wanting to learn for ages
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post #24 of 25
Quote:
Originally Posted by thecoredude98 View Post

[CODE
thanks for the help you taught me something i was wanting to learn for ages

Anything Win32, C/C++, .NET, C# related feel free to ask me or shoot me a PM directly! wink.gif
Ol' Sandy
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Ol' Sandy
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CoolingCoolingOSMonitor
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MonitorMonitorMonitorKeyboard
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post #25 of 25
Thread Starter 
Quote:
Originally Posted by tompsonn View Post

Anything Win32, C/C++, .NET, C# related feel free to ask me or shoot me a PM directly! wink.gif
okay smile.gif
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My computer
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