countOccurrences [1008879]

< > BotCompany Repo | #1008879 // countOccurrences

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

// element occurrences in list
static <A> int countOccurrences(Iterable<A> c, A x) {
  int n = 0;
  if (c != null) for (O o : c)
    if (eq(x, o))
      ++n;
  ret n;
}

static <A> int countOccurrences(A x, Iterable<A> c) {
  ret countOccurrences(c, x);
}

// string occurrences in string (not counting overlapping)
static int countOccurrences(S s, S x) {
  int i = 0, nx = l(x), count = 0;
  if (nx == 0) ret 0;
  while ((i = indexOf(s, x, i)) >= 0) {
    ++count;
    i += nx;
  }
  ret count;
}

Author comment

Began life as a copy of #1008859

Travelled to 14 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tslmcundralx, tvejysmllsmz, vouqrxazstgt, xrpafgyirdlv

Snippet ID:

#1008879

Snippet name:

countOccurrences

Eternal ID of this version:

#1008879/8

Text MD5:

9cf9fa636c5d7159f8109e69a1620744

Transpilation MD5:

6d2a352fc2001f64f954515a526f32f9

Author:

stefan

Category:

javax

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2020-07-12 18:01:53

Source code size:

519 bytes / 23 lines

Pitched / IR pitched:

No / No

Views / Downloads:

857 / 1065

Version history:

7 change(s)

Referenced in:

[show references]

1	// element occurrences in list
2	static <A> int countOccurrences(Iterable<A> c, A x) {
3	int n = 0;
4	if (c != null) for (O o : c)
5	if (eq(x, o))
6	++n;
7	ret n;
8	}
9
10	static <A> int countOccurrences(A x, Iterable<A> c) {
11	ret countOccurrences(c, x);
12	}
13
14	// string occurrences in string (not counting overlapping)
15	static int countOccurrences(S s, S x) {
16	int i = 0, nx = l(x), count = 0;
17	if (nx == 0) ret 0;
18	while ((i = indexOf(s, x, i)) >= 0) {
19	++count;
20	i += nx;
21	}
22	ret count;
23	}