Programming Forums > Application Development > C++

c_newbie · Mar 30th, 2006, 12:35 AM

hi
i just wanted to know if there is any way to use an operator like '+' or '/' if i have it as a type char...

for example

char op='+';

can i use 'op' in place of '+' at all ... or does op just store the '+' but not the value of the operation ... probably a stupid question but just a thought...
thanks

hbe02 · Mar 30th, 2006, 12:44 AM

im guessing your making some sort of calculator where the user enters the operation to perform. well you cannot use op as the operator. you can simply perform a switch statement on the different values op can take. something like this:

(Toggle Plain Text)

switch(op)
case '+' :
//perform addition
break;
case '-' :
//perform sub
break;
case '/' :
//perform div
break;
case '*' :
//perform mult
break;
default:
//incorrect operation
break;

King · Mar 30th, 2006, 12:44 AM

it would just store the char, so if op = '+', you would not be able to go 1 op 2, to add the two numbers. you could just use an if stament

(Toggle Plain Text)

if(op == '+')
  1+2;
else if (op == '/')
  1/2;

hbe02 · Mar 30th, 2006, 12:46 AM

or that...

c_newbie · Mar 30th, 2006, 12:51 AM

yes.. u're right .. thanks much .. i will do just that

c_newbie · Mar 30th, 2006, 12:56 AM

that worked perfectly .. thanx!!

Mar 30th, 2006, 12:35 AM	#1
c_newbie Newbie Join Date: Dec 2005 Posts: 14 Rep Power: 0	using char type in place of an operator to perform operation hi i just wanted to know if there is any way to use an operator like '+' or '/' if i have it as a type char... for example char op='+'; can i use 'op' in place of '+' at all ... or does op just store the '+' but not the value of the operation ... probably a stupid question but just a thought... thanks

Mar 30th, 2006, 12:44 AM	#2
hbe02 Hobbyist Programmer Join Date: Mar 2006 Location: Lebanon Posts: 148 Rep Power: 3	im guessing your making some sort of calculator where the user enters the operation to perform. well you cannot use op as the operator. you can simply perform a switch statement on the different values op can take. something like this: (Toggle Plain Text) switch(op) case '+' : //perform addition break; case '-' : //perform sub break; case '/' : //perform div break; case '' : //perform mult break; default: //incorrect operation break; switch(op) case '+' : //perform addition break; case '-' : //perform sub break; case '/' : //perform div break; case '' : //perform mult break; default: //incorrect operation break;

Mar 30th, 2006, 12:44 AM	#3
King Professional Programmer Join Date: Jan 2006 Location: Ontario, Canada Posts: 380 Rep Power: 3	it would just store the char, so if op = '+', you would not be able to go 1 op 2, to add the two numbers. you could just use an if stament (Toggle Plain Text) if(op == '+') 1+2; else if (op == '/') 1/2; if(op == '+') 1+2; else if (op == '/') 1/2; __________________ I am Addicted to Linux!

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Mar 30th, 2006, 12:46 AM	#4
hbe02 Hobbyist Programmer Join Date: Mar 2006 Location: Lebanon Posts: 148 Rep Power: 3	or that...

Mar 30th, 2006, 12:51 AM	#5
c_newbie Newbie Join Date: Dec 2005 Posts: 14 Rep Power: 0	yes.. u're right .. thanks much .. i will do just that

Mar 30th, 2006, 12:56 AM	#6
c_newbie Newbie Join Date: Dec 2005 Posts: 14 Rep Power: 0	that worked perfectly .. thanx!!

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Programming Forums > Application Development > C++

using char type in place of an operator to perform operation