Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
System Development Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
This course combines our Allegro PCB Editor Basic Techniques, followed by Allegro PCB Editor Intermediate Techniques.
Virtuoso Analog Design Environment Verifier 16.7
Learn learn to perform requirements-driven analog verification using the Virtuoso ADE Verifier tool.
Exchange ideas, news, technical information, and best practices.
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.
It's not all about the technlogy. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
Is there a way to remove a specific element from a list by knowing his location in the list and specifying to remove the elment from that location? :(
One way would be to do:
procedure(CCFremoveByIndex(lst n) let(((count 0)) setof(elem lst (count++!=n)) ))
The second argument is the position to remove, where 0 is the first entry in the list.
Another alternative is to use destructive methods:
procedure(CCFremoveByIndex(lst n) let((remainder) if(zerop(n) then cdr(lst) else remainder=nthcdr(n-1 lst) rplacd(remainder cddr(remainder)) lst ) ))
I've not profiled these, but the second generates less garbage, because it modifies the list in place, whereas the first constructs a new list.
That said, it's a slightly odd thing to do - generally if you're accessing lists via a numbered index, it often means you're using the wrong approach. Lists are sequential data structures, and so are not really well suited to be accessed in a "random access" manner.
In reply to Andrew Beckett:
Thank U for the feedback... just started using Skill and am a bit confused when U say "wrong approach" to access lists via an index :(
What I have at the moment are two lists: first with the main elements and second with parametter for each element in the first list (same index in the lists). When accessing element X from first list, I am also reading element 3 from second list to use the pair.
With the remove option, all I really want is to make sure that I can access element 3 from both lists and remove them accordingl.
From your experience, is there any risk that the list will not keep the order of the elements as they were added to the lists? :(