Float to String conversion

[Max]

I did some searching on the subject, but still can't find the answer, so
thought I'd ask. I have a float that needs to be converted into a string
type. That float is always >= 0.00 and must have 2 numbers after the
decimal, even if those numbers are 00. What's the best way to go about this?

 

[red floyd]

I did some searching on the subject, but still can't find the answer, so
thought I'd ask. I have a float that needs to be converted into a string
type. That float is always >= 0.00 and must have 2 numbers after the
decimal, even if those numbers are 00. What's the best way to go about
this?

std:stringstream

 

[John Harrison]

std:stringstream

std:stringstream buf;
buf << std::fixed << std::setprecision(2) << my_float;
std::string my_string = buf.str();

(untested)

john

PS using floating point values to represent money is a design error, money
is not a continuously varying quantity, it comes in discrete units called
cents. Therefore use integers for money but count in cents (or pennies or
whatever).

 

[Chris Whitworth]

PS using floating point values to represent money is a design error,
money is not a continuously varying quantity, it comes in discrete
units called cents. Therefore use integers for money but count in
cents (or pennies or whatever).

Banks frequently count fractions of a cent. See the film "Office Space" for
further details

Also, not everyone in the world uses US$ as their currency.

Chris