Header depths of various codebases

gistfile1.txt

(depth 1 are direct includes from the cpp)

A single file from our codebase:
28 headers at depth 1
35 headers at depth 2
50 headers at depth 3
74 headers at depth 4
82 headers at depth 5
89 headers at depth 6
127 headers at depth 7
155 headers at depth 8
172 headers at depth 9
207 headers at depth 10
200 headers at depth 11
205 headers at depth 12
105 headers at depth 13
105 headers at depth 14
121 headers at depth 15
148 headers at depth 16
165 headers at depth 17
57 headers at depth 18
28 headers at depth 19
25 headers at depth 20
30 headers at depth 21
34 headers at depth 22
51 headers at depth 23
28 headers at depth 24
15 headers at depth 25
8 headers at depth 26
7 headers at depth 27
4 headers at depth 28
4 headers at depth 29


A single file from boost log:
6 headers at depth 1
49 headers at depth 2
214 headers at depth 3
414 headers at depth 4
525 headers at depth 5
429 headers at depth 6
387 headers at depth 7
364 headers at depth 8
389 headers at depth 9
238 headers at depth 10
213 headers at depth 11
196 headers at depth 12
151 headers at depth 13
132 headers at depth 14
131 headers at depth 15
66 headers at depth 16
34 headers at depth 17
16 headers at depth 18
7 headers at depth 19
3 headers at depth 20
6 headers at depth 21
3 headers at depth 22
1 headers at depth 23
2 headers at depth 24
3 headers at depth 25

A single file from bloomberg:
4 headers at depth 1
11 headers at depth 2
43 headers at depth 3
98 headers at depth 4
194 headers at depth 5
241 headers at depth 6
165 headers at depth 7
156 headers at depth 8
132 headers at depth 9
156 headers at depth 10
118 headers at depth 11
65 headers at depth 12
59 headers at depth 13
36 headers at depth 14
35 headers at depth 15
28 headers at depth 16
24 headers at depth 17
15 headers at depth 18
5 headers at depth 19
1 headers at depth 20

HPX (I think whole codebase?)
79 headers at depth 1
323 headers at depth 2
433 headers at depth 3
562 headers at depth 4
468 headers at depth 5
665 headers at depth 6
670 headers at depth 7
689 headers at depth 8
509 headers at depth 9
587 headers at depth 10
377 headers at depth 11
341 headers at depth 12
258 headers at depth 13
246 headers at depth 14
102 headers at depth 15
73 headers at depth 16
35 headers at depth 17
18 headers at depth 18
8 headers at depth 19
7 headers at depth 20
5 headers at depth 21
9 headers at depth 22
1 headers at depth 23
5 headers at depth 24


Running over our entire first-party codebase (2439 .cpp files) including third party and system headers:
16340 headers at depth 1
34394 headers at depth 2
68264 headers at depth 3
119416 headers at depth 4
176322 headers at depth 5
229459 headers at depth 6
290917 headers at depth 7
313721 headers at depth 8
316042 headers at depth 9
302938 headers at depth 10
287980 headers at depth 11
253421 headers at depth 12
204089 headers at depth 13
158552 headers at depth 14
120653 headers at depth 15
100330 headers at depth 16
100883 headers at depth 17
136629 headers at depth 18
158973 headers at depth 19
131032 headers at depth 20
114812 headers at depth 21
77489 headers at depth 22
37157 headers at depth 23
17547 headers at depth 24
13540 headers at depth 25
8542 headers at depth 26
8342 headers at depth 27
6514 headers at depth 28
6512 headers at depth 29
3839 headers at depth 30
2793 headers at depth 31
1562 headers at depth 32
424 headers at depth 33
87 headers at depth 34
88 headers at depth 35
16 headers at depth 36
5 headers at depth 37