set /a question

[ALF]

Hi, any ideas as to why when I used set /a
totalfile=2,000+1,500 it gives me wrong answer. but when I
remove the comma it works fine. Do I miss something?

thanks in advance.

ALF

 

[Al Dunbar [MS-MVP]]

Hi, any ideas as to why when I used set /a
totalfile=2,000+1,500 it gives me wrong answer. but when I
remove the comma it works fine. Do I miss something?

Yes, you missed two things, both taken from set /?:

1) ... the expression evaluator is pretty simple ...

2) the comma is an "expression separator", not a "thousands" separator.

So when totalfile received a value of 2, set/a was simply returning the
first expression from the comma separated list, as per the documentation.

/Al

 

[Mark V]

In microsoft.public.win2000.cmdprompt.admin Al Dunbar [MS-MVP]
wrote:

Yes, you missed two things, both taken from set /?:

1) ... the expression evaluator is pretty simple ...

2) the comma is an "expression separator", not a "thousands"
separator.

So when totalfile received a value of 2, set/a was simply
returning the first expression from the comma separated list, as
per the documentation.

ALF,
In the case of DIR (W2K) output it may help to use "/-C"

/C Display the thousand separator in file sizes.
This is the default.
Use /-C to disable display of separator.

 

[Alf]

thanks

-----Original Message-----
In microsoft.public.win2000.cmdprompt.admin Al Dunbar [MS-MVP]

wrote:




Yes, you missed two things, both taken from set /?:

1) ... the expression evaluator is pretty simple ...

2) the comma is an "expression separator", not a "thousands"
separator.

So when totalfile received a value of 2, set/a was simply
returning the first expression from the comma separated list, as
per the documentation.

ALF,
In the case of DIR (W2K) output it may help to use "/-C"

/C Display the thousand separator in file sizes.
This is the default.
Use /-C to disable display of separator.
.