Stats

Locked Locked
Replies 6
Subscribers 143
Views 14347
Members are here 0

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

How to dynamic change the number to format ( Writes formatted output to a port.) ?

Charley Chen over 7 years ago

Hi All,

How to dynamic change the number 10 ==> 15 ? ( Writes formatted output to a port.)

I want 10s is not fixed , it dependents on a interger variable (e.g. a = 10 , a= 15)

fprintf( op "%10s\n" line) => fprintf( op "%15s\n" line)

Thank you,

Charley

RK56 over 7 years ago

How about this way? Create a string with the required format and then evaluate the string. I remember Perl having a way of doing this directly but not in skill. Others please correct me.

fmtCmd = sprintf(nil, "printf(\"%%%ds\n\" \"line\")" formatInt)
evalstring(fmtCmd)

-Ramakrishnan
Cancel
Vote Up 0 Vote Down

Cancel
Charley Chen over 7 years ago in reply to RK56

Hi Ramakrishnan ,

Yes, It works. Thank you.

Charley
Cancel
Vote Up 0 Vote Down

Cancel
Andrew Beckett over 7 years ago in reply to Charley Chen

Using evalstring (and hence run-time evaluation) is a really bad way of doing this - it's unnecessary. You can take the same idea but do it much more cleanly and without needing to revert to run-time evaluation:

sprintf(formatStr "%%%ds\n" fieldWidth)
fprintf(op formatStr line)

Unfortunately SKILL doesn't support the "%*s" construct that the C printf does, which would have made this even easier.

Regards,

Andrew
Cancel
Vote Up +1 Vote Down

Cancel
Charley Chen over 7 years ago in reply to Andrew Beckett

Hi Andrew ,

It's OK for one field.

If i have 4 field needs to op , How to write ?

Thank you,

Charley
Cancel
Vote Up 0 Vote Down

Cancel
RK56 over 7 years ago in reply to Andrew Beckett

Agreed. This is much netter
Cancel
Vote Up 0 Vote Down

Cancel
Charley Chen over 7 years ago in reply to RK56

Hi Andrew,

I got it. It works. Thank you very much

sprintf(formatStr "%%%ds %%%ds %%%ds %%%ds\n" fieldWidth fieldWidth fieldWidth fieldWidth)
fprintf(op formatStr line1 line2 line3 line4)

Charley
Cancel
Vote Up 0 Vote Down

Cancel

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.