Question: At Perl, what is the equivalent function of Ceil? Or how can I perform Ceil on a number like other languages.
Answer: So far, I don't know any function to serve this issue. But if I need, I use sprintf() combined with floating. Below example will show you what exactly I mean for.
The above code will output 11, which is the exact ceiling of 10.51.
Answer: So far, I don't know any function to serve this issue. But if I need, I use sprintf() combined with floating. Below example will show you what exactly I mean for.
my $number = 10.51;
$number = sprintf("%.0f", $number);
print $number;
The above code will output 11, which is the exact ceiling of 10.51.
Comments
how about:
my $number = 10.03;
$number = sprintf("%.0f", $number);
print $number; # --> 10 ????
so your function is more or less "round", instead you can simply use
print int($number)+1; # -> ceil
or
print int($number+0.5); # --> round
use POSIX qw(ceil floor);
$number = ceil($number);
For testing any homebrew routines, some correct outputs are:
ceil(-1.4)=-1
floor(-1.4)=-2
ceil(1.4)=2
floor(1.4)=1
ceil(-1.6)=-1
floor(-1.6)=-2
ceil(1.6)=2
floor(1.6)=1