custom functions doc #3291

Job	Run time
gcc_build	1s
gcc_build_no_deprecated	1s
gcc_build12	1s
github_20 (g++-12, Debug)	1s
ci_test_compilers_clang (3.8)	1s
github_20 (g++-12, Release)	1s
ci_test_compilers_clang2 (13)	1s
ci_test_compilers_clang (3.9)	1s
ci_test_compilers_gcc (8)	1s
ci_test_compilers_clang2 (15-bullseye)	1s
ci_test_compilers_gcc (9)	1s
ci_test_compilers_clang (4)	1s
ci_test_compilers_gcc (10)	1s
ci_test_compilers_clang (5)	1s
ci_test_compilers_gcc (11)	1s
ci_test_compilers_gcc2 (12)	1s
ci_test_compilers_clang (6)	1s
ci_test_compilers_gcc2 (latest)	1s
ci_test_compilers_gcc (12)	1s
ci_test_compilers_clang (7)	1s
ci_test_compilers_gcc (latest)	1s
ci_test_compilers_clang (8)	1s
clang_14_build	1s
ci_test_compilers_clang (9)	1s
ci_test_compilers_clang (10)	1s
gcc_build11b	1s
ci_test_compilers_clang (11)	1s
ci_test_compilers_clang (12)	1s
ci_test_compilers_clang (13)	1s
ci_test_compilers_clang (14)	1s
ci_test_compilers_clang (15-bullseye)	1s
	31s

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