Re^4: Padding with sprintf changing number

Thanks Alot for explanation with example and your worked perfectly i have one more Q...my $padacntnum =sprintf("%017d",$bgl) this is going to round off every number ??

Comment on Re^4: Padding with sprintf changing number

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Re^5: Padding with sprintf changing number by BillKSmith (Monsignor) on Sep 24, 2021 at 17:11 UTC
It probably is not possible to predict the results in every case. Consider these two runs of your function. Only the second replicates your original problem. `use strict; use warnings; no warnings 'experimental::signatures'; use feature 'signatures'; sub amnt($amn) { my $amount=$_[0]; print "$amount i m checking amount before padding,\n"; my $padamnt = sprintf("%016d",$amount); print "$padamnt i m checking amount after padding,\n"; return $padamnt; } print "EXACT integer\n"; amnt(488715); print "\n\nNot quite an integer\n"; amnt(488715 - 4e-10);` [download] OUTPUT: `EXACT integer 488715 i m checking amount before padding, 0000000000488715 i m checking amount after padding, Not quite an integer 488715 i m checking amount before padding, 0000000000488714 i m checking amount after padding,` [download] Bill	[reply] [d/l] [select]

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Re^5: Padding with sprintf changing number
by BillKSmith (Monsignor) on Sep 24, 2021 at 17:11 UTC

use strict;
use warnings;
no warnings 'experimental::signatures';
use feature 'signatures';

sub amnt($amn)
{
my $amount=$_[0];
print "$amount i m checking amount before padding,\n";
my $padamnt = sprintf("%016d",$amount);
print "$padamnt i m checking amount after padding,\n";
 return $padamnt;
}

print "EXACT integer\n";
amnt(488715);

print "\n\nNot quite an integer\n";
amnt(488715 - 4e-10);
[download]

OUTPUT:

EXACT integer
488715 i m checking amount before padding,
0000000000488715 i m checking amount after padding,


Not quite an integer
488715 i m checking amount before padding,
0000000000488714 i m checking amount after padding,
[download]

Bill

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