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Join Date: May 2004
Location: London UK
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Newbie Poster
Hello guys,
is there a way to declare global variables as float and then convert them to int to be used in a function? i.e.
is there a way to declare global variables as float and then convert them to int to be used in a function? i.e.
float num1, num2, result;
float Mod(){
num1%num2=result; //Wrong, (%) requires int type)
}
MSVC++
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Join Date: May 2004
Location: London UK
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Newbie Poster
Im using the function in a switch statement and the other functions return float numbers.
MSVC++
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Join Date: May 2004
Location: London UK
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Newbie Poster
I guess I could use local variables for that function, could I not?
sorry about that.
sorry about that.
MSVC++
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Join Date: Feb 2002
Location: Lawn Guylen, NY
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Also, keep in mind that variables can be typecasted. For example:
I think I did that right, anyways.
int x = 5; float sum = (float)(x) + 2.25;
I think I did that right, anyways.
Dani the Computer Science Gal
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Join Date: Apr 2004
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Originally Posted by MaxC
Hello guys,
is there a way to declare global variables as float and then convert them to int to be used in a function? i.e.
float num1, num2, result; float Mod(){ num1%num2=result; //Wrong, (%) requires int type) }
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Join Date: May 2004
Posts: 53
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Junior Poster in Training
something like this should work:
myfloat <- float
myint <- int
myint = 0;
while(myfloat >= 1){
myint++;
myfloat--;
}
Something like that would do the trick... I might have my reasoning a little of but I'm sure that it would work.
myfloat <- float
myint <- int
myint = 0;
while(myfloat >= 1){
myint++;
myfloat--;
}
Something like that would do the trick... I might have my reasoning a little of but I'm sure that it would work.
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Join Date: May 2004
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Posting Whiz in Training
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Originally Posted by MaxC
Hello guys,
is there a way to declare global variables as float and then convert them to int to be used in a function? i.e.
yea,sure thing use type casting.
Eg:
float x = 9.879;
int y = (int)x; //y will be 9
you can do it the other way around too.
x=(float)y;
Usually float and int can be assigned to each other as C++ normally does that type casting automatically
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Join Date: Jun 2004
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Newbie Poster
Hello
you can use a most c++ powerful operator
int a;
float numq = 60.7;
a = static_cast<int> (num1);
i don't now why poeple here don't use a c++ feature the are using a c-style
you can use a most c++ powerful operator
int a;
float numq = 60.7;
a = static_cast<int> (num1);
i don't now why poeple here don't use a c++ feature the are using a c-style
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Join Date: May 2004
Location: Portland, OR, USA
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Light Poster
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Originally Posted by abu_sager
...
i don't now why poeple here don't use a c++ feature the are using a c-style
Here's a quick article on why to use C++ casting:
http://www.sjbrown.co.uk/static_cast.html
For this problem, though, a C-style cast isn't very dangerous since we're only dealing with numeric types--the really bad stuff happens when you're casting pointers to classes.
--sg
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Join Date: Jun 2004
Location: Jakarta
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Newbie Poster
two approaches that i can think of:
(1)
float num1, num2, result;
float Mod()
{
float result;
result = (float) ( (int) num1 % (int) num2 );
return result;
}
(2)
use fmod()
check the use of it on mdsn.microsoft.com
(1)
float num1, num2, result;
float Mod()
{
float result;
result = (float) ( (int) num1 % (int) num2 );
return result;
}
(2)
use fmod()
check the use of it on mdsn.microsoft.com
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