UNMARKBDDNODE(3)

🎀 unmarkbddnode(3) — BDD FUNCTIONS 🎀

okay bestie, we are officially in UNMARKBDDNODE(3) territory, and the whole vibe is “take a mask off a bdd node and count the newly unmarked nodes.” No cap, it’s niche but iconic.

✨ NAME ✨

unmarkbddnode — unmarks bdd node with a specified mask. Periodt.

🌈 ORIGIN 🌈

This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at the LIP6 laboratory of Universit� Pierre and Marie CURIE, in Paris, France.

• Web : http://asim.lip6.fr/recherche/alliance/
• E-mail : alliance-users@asim.lip6.fr

💖 SYNOPSIS 💖

#include "bdd101.h"
long unmarkbddnode( BddSystem, BddNode, Mark )
  bddsystem ∗BddSystem;
  bddnode   ∗BddNode;
  bddunmark    Mark;

🎀 PARAMETERS 🎀

• BddSystem — the bdd system.
• BddNode — the bdd node to unmark.
• Mark — the bit mask.

🦋 DESCRIPTION 🦋

unmarkbddnode unmarks the bdd node BddNode with the bit mask Mark, in the bdd system BddSystem. If a null pointer is given, the default bdd system is used. This function does a AND with the field MARK of the bdd node BddNode, and the complemented bit mask Mark. That’s the whole mechanic, bestie — lowkey elegant.

⭐ RETURN VALUE ⭐

unmarkbddnode returns the number of the different unmarked nodes. Yes, it counts them. Slay.

🔥 EXAMPLE 🔥

Here’s the example, kept exactly as the original gives it:

#include "bdd101.h"
   bddsystem  ∗BddSystem;
   bddcircuit ∗BddCircuit;
   bddnode    ∗BddNode;
   chain_list ∗Expr;
   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
   BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem );
   Expr = createablbinexpr( ABL_AND,
                            createablatom( "i0" ),
                            createablatom( "i1" ) );
   BddNode = addbddcircuitabl( BddCircuit, Expr );
   freeablexpr( Expr );
   printf( "Number nodes: %ld0,
           markbddnode( (bddsystem ∗)0, BddNode, 0x0001 ) );
   unmarkbddnode( (bddsystem ∗)0, BddNode, 0x0001 );
   destroybddsystem( (bddsystem ∗)0 );
   destroybddcircuit( (bddcircuit ∗)0 );

👑 SEE ALSO 👑

bdd(1) — that’s the reference, bestie. Go give it a read. 👑

💀 BUG REPORT 💀

This tool is under development at the ASIM department of the LIP6 laboratory. We need your feedback to improve documentation and tools. So pls, send the feedback — the docs and tools wanna glow up. 🫶

💌 cute sign-off: source/version ASIM/LIP6, date October 1, 1997, manual UNMARKBDDNODE(3) — that’s the footer, but make it fashion. 💅