CString::Format

Bravoone_2006

How can i make this : i have this code : csText.Format("%d", nSum); ok but my result is lets say 44,ok but if i have 22.3+22.3=44.6(nSum) this is not working : csText.Format("%d", nSum); How can i make this?(to have the result whit 44.6 lets say not 44)

Bravoone

_AnsHUMAN_

nSum is an int value. So it truncates the value up to the decimal point. You need to take a float or a double variable. // say nSum is float type csText.Format("%f",nSum);

Somethings seem HARD to do, until we know how to do them. ;-)_AnShUmAn_

CPallini

%d is the type format specifier for signed decimal decimal, for floaing point numbers you can use, for instance, %g. see http://msdn2.microsoft.com/en-us/library/hf4y5e3w(VS.80).aspx[^] (remember that CString::Format behaves like sprintf). :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.

_AnsHUMAN_

CPallini wrote:

for floaing point numbers you can use, for instance, %g. see

:doh:

Somethings seem HARD to do, until we know how to do them. ;-)_AnShUmAn_

CPallini

Don't you like %g? :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.

Bravoone_2006

ok,but i need 2 digits 44.66 lets say... then what ?

Bravoone

Bravoone_2006

"%g" is not working !How can i do that ?

Bravoone

Cedric Moonen

Use this format tag: %.2f instead.

Cédric Moonen Software developer
Charting control [v1.2]

CPallini

Don't you read documentation, do you? :mad: try: csText.Format("%.2f", nSum); BTW nSum is a misnaming for a float if you are using Hungarian Notation. :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.

CPallini

On my system it works pretty well, anyway, see [^] or [^]. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.

Bravoone_2006

csText.Format("%.2f", nSum); is not working why? i have read documentation but is not working !any why ?

Bravoone

Xing Chen

try like this: float uSum = 12.457 + 345; CString strFomat; strFomat.Format(TEXT("%.2f"),uSum);

CPallini

Bravoone_2006 wrote:

csText.Format("%.2f", nSum); is not working why?

What do you mean with the generic is not working? :confused: Please detail the misbehaviour (i.e. obtained result vs expected result). BTW Have you correctly declared nSum as floating point number? :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.

Bravoone_2006

How can i do that ? lets say in list i have 44.22+44.22 the result must be in csText 88.44 HOW can i do that? int nSum = 0; int uSum = 0; for( int nRow = 0; nRow < m_list1.GetItemCount();nRow++) { if(m_list1.GetCheck(/*index of item*/nRow)) { csText = m_list1.GetItemText( nRow, 2 ); uSum += atoi( csText); csText.Format("%.2f",uSum); m_sum.SetWindowText(csText); } } this code give the result : lets say i have in list 44.22+44.22 the result in csText is 88.00 but i need 88.44 HOW ?

Bravoone

_AnsHUMAN_

don't use atoi(). instead use atof() I think you must read the documentation rather than starting to build on the project. atoi converts a string to int and not to a float and then when you add them it returns an int in uSum which is just printed as a float value.

Somethings seem HARD to do, until we know how to do them. ;-)_AnShUmAn_

Xing Chen

you must declare uSum as float. and atof() instead of atoi(). float nSum = 0; float uSum = 0;

Bravoone_2006

ok but... : uSum += atof( csText); warning C4244: '+=' : conversion from 'double' to 'int', possible loss of data Why?

Bravoone

Optimus Chaos

because nSum has data type int. :)

_AnsHUMAN_

uSum is an int. so you would need to use typecasting or declare uSum as a float. I think you are missing on the basics. :|

Bravoone_2006 wrote:

ok but... : uSum += atof( csText); warning C4244: '+=' : conversion from 'double' to 'int', possible loss of data

It would be better if you read some tutorials on typecasting, using variables and reading some more basics and some more............................and a few more....................:rolleyes:

Somethings seem HARD to do, until we know how to do them. ;-)_AnShUmAn_

Cedric Moonen

Bravoone_2006 wrote:

Why?

You declare an integer, how would you expect to store a floating point value into it and expect that it still holds a floating point value ? I think you REALLY need to find some good book about the basics of C++. I mean, knowing what an integer and a double are, is at least the bare minimum. It's the thing you learn at very very begining.

Cédric Moonen Software developer
Charting control [v1.2]