LowestDouble - records the lowest double [1032639]

< > BotCompany Repo | #1032639 // LowestDouble - records the lowest double

JavaX fragment (include) [tags: use-pretranspiled]

sclass LowestDouble {
  double best = Double.NaN;
  transient O onChange;
  
  synchronized bool isNewBest(double d) {
    ret isNaN(best) || d < best;
  }
  
  // may return NaN
  double get() {
    ret best;
  }
  
  bool put(double d) {
    bool change;
    synchronized(this) {
      if (isNaN(best) || d < best) {
        best = d;
        set change;
      }
    }
    if (change)
      pcallF(onChange);
    ret change;
  }
  
  synchronized void clear() { best = Double.NaN; }
  
  synchronized bool has() { ret !isNaN(best); }

  synchronized toString { ret has() ? str(best) : "-"; }
}

Author comment

Began life as a copy of #1006448

Travelled to 3 computer(s): bhatertpkbcr, mowyntqkapby, mqqgnosmbjvj

Snippet ID:

#1032639

Snippet name:

LowestDouble - records the lowest double

Eternal ID of this version:

#1032639/3

Text MD5:

2ae3f68491eb9333d0aa6b79a4331295

Transpilation MD5:

e4536cd8e5bfdc2b5562d3318438dc29

Author:

stefan

Category:

javax / genetic optimization

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2021-09-29 22:59:45

Source code size:

626 bytes / 32 lines

Pitched / IR pitched:

No / No

Views / Downloads:

123 / 241

Version history:

2 change(s)

Referenced in:

[show references]

1	sclass LowestDouble {
2	double best = Double.NaN;
3	transient O onChange;
4
5	synchronized bool isNewBest(double d) {
6	ret isNaN(best) \|\| d < best;
7	}
8
9	// may return NaN
10	double get() {
11	ret best;
12	}
13
14	bool put(double d) {
15	bool change;
16	synchronized(this) {
17	if (isNaN(best) \|\| d < best) {
18	best = d;
19	set change;
20	}
21	}
22	if (change)
23	pcallF(onChange);
24	ret change;
25	}
26
27	synchronized void clear() { best = Double.NaN; }
28
29	synchronized bool has() { ret !isNaN(best); }
30
31	synchronized toString { ret has() ? str(best) : "-"; }
32	}