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Paul Dreik 9d97201ede add oss-fuzz support 
see https://github.com/google/oss-fuzz/pull/2381

the history of the fuzz branch is long and messy and
is difficult to rebase on top of the current master.

Squashed commit of the following:

commit b9d6db50010e185d0af2590a35472e9334102248
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 29 21:50:34 2019 +0200

    update exception with a more accurate description

commit f3fbaf60cc80c7f57fa95962dc0069b10c3d3e61
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 29 21:34:55 2019 +0200

    fix missing flags in reproduce build

commit 40a17bec7a1ad724203577842a254ca9c42da388
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 29 21:22:48 2019 +0200

    move check for large precision values closer to where needed

commit ef6e23e1f52d639c5aec1a1e713157cec380a8c3
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:55:34 2019 +0200

    simplify the fuzzer build script

commit eadee6e0557be6df695e80f0f2717046a29846e0
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:47:54 2019 +0200

    minimize source code pollution

commit 1ece6416438f199c164ee9aa89f42ad1f21a4985
Merge: f404079b 037b84f2
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:22:52 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	CMakeLists.txt

commit f404079b4e00e51b0d5a4c9218cbe7afb350b777
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:20:52 2019 +0200

    make named_arg write into a string or a memory_buffer

    this makes the fuzzer consistent with the others.

commit 545dbe136817eef9e734c32991a324874a51bb4a
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu Jun 20 06:34:17 2019 +0200

    tidy up extra newlines, missing std:: etc.

commit 2d816ef2b13fc2a46c0df76a91f7912bd7196087
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:49:08 2019 +0200

    update unit test to handle expected result following review comment

commit a5b9a26808d0165acd2edc4c3baabf9bff40d8bd
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:40:06 2019 +0200

    update build script to reflect changes after review

commit 8411cb78984f76c74bca273c0bb18918e084e711
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:39:39 2019 +0200

    review comment: clarify what the .gitignore is for

commit 18d9e7bb43d98568fe491e076106e4fa29070b33
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:36:56 2019 +0200

    review comment: don't touch root .gitignore

commit 7683d7faa116a6e261da824ec6c1a6a75689841b
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:35:40 2019 +0200

    review comment: condiionally include main.cpp

commit be0bdaeb27b0c1914cc0b0fd85c2b3bcc6fd2245
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:31:28 2019 +0200

    review comment: drop commented out code not working on travis

commit 013429812d7fb745eec146296623ea245c4848b4
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:30:26 2019 +0200

    review comment: renumber case labels

    the old ones were to be able to reuse the corpus, let's drop it

commit f66fe7bead4a71978f21d9e47a8f3f9e4935fccd
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:06:47 2019 +0200

    review comment: libfmt->fmt

commit 4a4ddb654dd5b90646cd7e6ff45318c17b66dc9f
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:05:32 2019 +0200

    reuse fmt_safe_duration_cast

commit 0a1679411a8bd77c2ff34e1cd572307c92e12040
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:02:48 2019 +0200

    review comment: name convention, better name

    C was for "chrono duration"

commit 63084cac00b798c636e0dc13207df46a5c4539f6
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:00:50 2019 +0200

    reuse earlier extract fmt_safe_... function

commit b23388d4d7f919163ead9a9e9bdd50d14daf80b7
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:58:55 2019 +0200

    review comment: don't output inf.inf

commit 6f861f1d89d2127bbe2446d176d59a354665cc15
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:57:00 2019 +0200

    review comment: extract function for invoking safe_duration_cast

commit df19bc87ccff77d4bedf54fa3d3992f78ef699bd
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:47:30 2019 +0200

    review comment: leftover garbage

commit 84eea802efb1164c4f2a83b2e480a7c5bdf4e921
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:45:22 2019 +0200

    review comment: turn cmake option into macro for SAFE_DURATION_CAST

    decided to have it on by default

commit c3a159498c2544a52662cd03d23d5a1d00537bba
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:40:14 2019 +0200

    review comment: extra newline

commit aa556875c5161d817c347ff984dad171c7a35df9
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:38:49 2019 +0200

    review comment: file name convention

commit 4102d82c455324bda4ccd64072eab86b3f0ecebf
Merge: 28add37d 4912cff6
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 16:29:29 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 28add37df3944cbaa00f614e8063210a6d83c17c
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 21:44:06 2019 +0200

    disable check to pass travis

commit 4119378aedfd3e4063058e8f1f03c29d9f44d5e8
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 21:32:39 2019 +0200

    add missing include

commit ba2efb82f20d6ecb5e49a8c6ced96a7febedc175
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 21:04:41 2019 +0200

    try working around build issue on travis

commit 380671a2cb6e52f2b7d5eaad409d491baba5b7e6
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 20:22:41 2019 +0200

    write positive infinity without sign

commit fd72b9adace17e00c46aae24e061bf14c3af6bb1
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 20:20:50 2019 +0200

    remove leftover from merge

commit 1ae3128be2c53914e4c840d12e1b02c59758c378
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 20:14:45 2019 +0200

    format to buffer instead of string

commit 1d83a561244c2fe81231d17e911c6eb24c87cac4
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:50:19 2019 +0200

    fix warnings

commit a33b45a7bb5cf70eb3ef1cd95908282621195f1f
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:43:46 2019 +0200

    refactor and fix warnings

commit 02afb12dd5b05804a1a8b55e1b9fb7e3de593e84
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:17:27 2019 +0200

    use fixed size input

commit 35f84c8cf20efb18a137efecd10dcdc6bcebf7b5
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:07:43 2019 +0200

    factor out main into a separate file

commit a23b7a198ba739dd813897901855c98441e6f29b
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 18:56:40 2019 +0200

    refactor

commit 9a3f4cfb3bc32a304a1a49b8ff24fbc2f924266c
Merge: 7842582a 12f46838
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 18:20:03 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 7842582a0089c24a5d44bbb2d156beb732bb7b58
Merge: 90cab5aa cbbee1b3
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu Jun 13 10:41:34 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 90cab5aa023271a3a746cf9c60dd613b4546ca10
Merge: 8feb8a3f e5422db4
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 12 18:49:08 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 8feb8a3fe20da043a8303e59b1580b4b2862cc57
Merge: e9fabac1 87fbc6f7
Author: Paul Dreik <github@pauldreik.se>
Date:   Tue Jun 11 19:18:35 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit e9fabac1dd6d710fec1b30ca51dc953f57f2f9f5
Merge: eaff9316 e1a67b52
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 10 22:38:36 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit eaff93166402ff9a16a9ab0fab1081104f4f06b8
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 22:29:01 2019 +0200

    drop old crashes

commit 7f861e481abb7367bd187c92fe202e25d36d0dd0
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:47:30 2019 +0200

    build fuzzers as part of the linux clang 6 build

commit 42c339066dce148723f452d4a94487a6ac80637f
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:42:12 2019 +0200

    travis has old libs

commit 9264e3ac82582a941eba3501301dee1468175c08
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:33:26 2019 +0200

    more travis workarounds

commit c6eed3adaf6cf65d440dd58c88a034f61c55114f
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:27:49 2019 +0200

    travis workaround

commit 5e230d6240841dbc67f0c08ace3a1c24defea54f
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:15:36 2019 +0200

    fix constexpr issues

commit cc5fc033479c769a8ac19115aef48020c532c943
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:11:13 2019 +0200

    add a fuzzer build

commit 3997375296eca0d0455e0935ef3aed8b010ecf2d
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:53:04 2019 +0200

    fix minor documentation errors

commit 1572411261abd5c0756ff2998ab707f1131d4fdf
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:49:25 2019 +0200

    polish the documentation

commit 9e5274437cfc3e9c82131c14cf7f3a0abdb10025
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:32:45 2019 +0200

    remove unused headers

commit 4b2492a5e037d3153de342ef7f2729b69e8f5dce
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:28:12 2019 +0200

    clang format

commit a0004ebb417bce5a24c15ea65a0f3741e45b8480
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:27:02 2019 +0200

    format also void*

commit 820142ee2076ae17fea25857c41a1ecdca4a8521
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:12:21 2019 +0200

    improve two_args with lessons learnt from the others

commit 7b8fd7f5123fccf78b600c69ca25d025582c095e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:11:18 2019 +0200

    improve function names

commit 641bf36a7a061abf6a02d5e31f3adeb33b079f43
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:07:29 2019 +0200

    clang format

commit 7975c0c3cbe19a7159336ad8fcb170fa6259b1cb
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:06:02 2019 +0200

    apply lessons learned from chrono fuzzer on sprintf

commit 972124c9f921f8ef786f99c294f556bb7dd9b9ee
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:55:49 2019 +0200

    format to buffer instead of string

commit 7b015c692364d1e087a59dfe83dda1b8f8fd2991
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:50:25 2019 +0200

    apply lessons learned from the chrono fuzzer at one_arg

commit daa8ea95dd71704e367b760fa6605f5a7cac6890
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:41:17 2019 +0200

    renumber cases

commit a667365d0e0f3eb0bc6d6f2cfee5e128a6574aee
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:38:06 2019 +0200

    clang format

commit e0e361b8a3594c43e131d661a28381613a186c2b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:36:35 2019 +0200

    disable fuzzing by default

commit ccb4274ab246ee1fe3becb2b73432179a8a5fe6f
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:36:25 2019 +0200

    refresh named_arg with lessons learnt from the chrono fuzzer

commit 60da706d4ef35c18eb967bf4ba8d395ef05a9c61
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:36:00 2019 +0200

    fix build error

commit e361bfc24246d7c7e91f5e45209eda2f22689d98
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:00:11 2019 +0200

    add comment about formatting to string vs. memory buffer

commit 74c0ed062d34eae1786ca699886ad4f3bccc7fd1
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:51:23 2019 +0200

    try to use better names

commit 4efea36f77020eecf3c7826f891417f94aedf6f4
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:46:07 2019 +0200

    fix clang build error

commit 03cdd2e4631ad302dde3e1048671d3bb08956096
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:44:21 2019 +0200

    drop workarounds fixed upstream

commit e936829ebbd97ed2e6f8c5f595b414c0982f2e4d
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:41:02 2019 +0200

    move the fuzzers into the test/ subdirectory

commit 2967765698259764c1f06966a7cdefbc5365e5f2
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:30:03 2019 +0200

    revert temporary tests handled upstream

commit 749c5027b0eab3d90d8fbfb6e55ee313a7f7dfe4
Merge: dee69088 5d9100fa
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:49:00 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit dee690881bd33bb77bee1d5ffce643e8bef84a33
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:40:37 2019 +0200

    keep documentation comment formatted properly

commit 87d2c99487eef586ce54d432697f384cbe7a50e1
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:36:12 2019 +0200

    switch to fmt constexpr macros

commit c23fa59139c425a3dfa2e5eeaeb3269c251c90d1
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:30:22 2019 +0200

    clang format

commit 9e58207e9b24a8cc90c721277405b409dd61740d
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:27:03 2019 +0200

    get rid of safe_duration_cast submodule

    replaced with an embedded miniature version

commit a4d36eac46e5db45ded96f80f84986f4f76ea0ec
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:25:00 2019 +0200

    add safe_duration_cast into fmt

commit 7d5b0ecef37722c40952251c88d74a2552221d84
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 8 22:39:33 2019 +0200

    mark #1194 as fixed

commit ee91514ecf7a8788f2081996db85eef50d7cd57b
Merge: 60569117 4faadff0
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 8 22:25:37 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 6056911784bc86e6caf56a61fd64142f113d531e
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 09:58:30 2019 +0200

    format to small size buffer instead of string

commit 9f006097255c239188840b589f6e39cbb4476481
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 09:45:23 2019 +0200

    switch to fmt::string_view and workaround reported bug

commit 387de0d9440852fac974ff165b2555d54e2380da
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 06:26:15 2019 +0200

    ignore build directories

commit 55da271c5bb3c11a239c4e46570b6741803ce329
Merge: 3716491e c264e641
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 06:12:36 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 3716491ec51c34a918834857c67300eea180ba02
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 3 07:03:29 2019 +0200

    fix UB in on_second

commit 2740241b13b7417a4dae655f825ea5a551ffe7ba
Merge: 1c258402 d54e64b3
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 3 06:37:18 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 1c258402a4bd03f390e0256fa9475cc5187d37f9
Merge: ca9596d1 f57227a1
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 1 08:01:58 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit ca9596d1c91b0315b407ce2c4b3e9e5ba1aeb640
Merge: 1c274cfd d07cc202
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 19:42:33 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 1c274cfd4112138bfc59dd16f58022016128fe85
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 08:12:10 2019 +0200

    make it easier for the chrono fuzzer to explore

    using a fixed size makes the cases cross pollinate
    each other better.

    the execution speed is much higher as well

commit f0d7cccdc70c98576b7129428c416e7c9e68a8aa
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 07:36:21 2019 +0200

    add a build adapted for analysis of fuzzing performance

commit 56f7cf3fa979de415174a10b18221727e3138b7b
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 06:25:10 2019 +0200

    allow negative values again

commit a77a5fc505bbeab1cfa36be16d40f7799689317a
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 05:45:55 2019 +0200

    fix UB on signed int overflow in chrono_formatter constructor

    see https://github.com/fmtlib/fmt/issues/1179

commit b6a592720be520b58ed2f2d8668ffc6c8b71f0f7
Merge: 492a2046 30bce6c1
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 05:26:30 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 492a204623c3c4bbf04c9d47d69979d3a484959c
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 21:36:00 2019 +0200

    fix bad assert

commit 0ae68b03fbb0e80e292a01f529d5cd7e76349907
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 21:35:49 2019 +0200

    add unsigned types for chrono fuzzing

commit 2753d7db76645e8847ff2110c5e98f5c8de4a6b9
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 20:25:21 2019 +0200

    use C++17

commit bc12742f098ec8b513985daedc57faa518203eb0
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:44:59 2019 +0200

    add symlink for safe_duration_cast

commit 67201d2639b93736768e109d73b3e9ccc9401c48
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:40:40 2019 +0200

    turn on safe duration cast for the fuzzer builds

commit 31a70080a63a5213594e4b4e6a33e7e315cf756e
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:32:52 2019 +0200

    clang format

commit 981e30c5782d04453ece1b31e887da4f29268370
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:30:19 2019 +0200

    reduce maximum allocation size

commit 7ba51da81de7ecbc5498a22dc29de5b0648bcad2
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:30:01 2019 +0200

    make nan unit test pass

commit 95b4b9c28a589c30727826dd4e1367bebfad5894
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 18:39:08 2019 +0200

    special case nan and inf

commit 2673c965506e51d150c005340698a6e15d98aaba
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 16:40:11 2019 +0200

    build a fast fuzzer, for making coverage fast

commit db52b62612fd7ea3ceeaee05584fd8cb83e54a35
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 16:39:48 2019 +0200

    add safe duration cast as submodule

commit c8a028faec5d91728472f5de01ea8b1766fb929d
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 16:00:26 2019 +0200

    enable chrono fuzzing for non-negative values

commit de3555cc573e561691858ca16586f8b45a3ae703
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 13:06:35 2019 +0200

    try start using safe duration cast

commit 5c3245118c3debcb3f6f69c04c2c32d48449ee16
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 09:59:34 2019 +0200

    add failing test

commit 3a565d3b091c29210e24042f86869fecafb70914
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 09:59:09 2019 +0200

    fix cmake option type (should be string, not bool)

commit 61c67564207a13992b1c69d95614b2c4aec5df86
Merge: 63e7b9e3 bb254d14
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 07:03:42 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 63e7b9e32c714c594d019ef463c9c40a3510a2f2
Merge: 7dd1d80f 5e7bdf1b
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri May 17 19:17:20 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 7dd1d80f3a32465d0fa13ce733bff8686a5b0bad
Merge: 2c9aa5a3 2a9e8b52
Author: Paul Dreik <github@pauldreik.se>
Date:   Tue May 14 19:38:32 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 2c9aa5a31e64af25f8bb4afa8134258822532d3e
Merge: 16a442c8 2c77562b
Author: Paul Dreik <github@pauldreik.se>
Date:   Tue May 14 06:33:16 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 16a442c864dbdce70c22b4a859dba5e3b5edaf35
Merge: b1d70b61 f4dfd6e3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 12 15:24:31 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit b1d70b6144c7a61e580eb44ec7d1bdd2368f5531
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri May 10 08:52:57 2019 +0200

    prevent excessive time (found by oss-fuzz)

    the following triggered this:
    std::string message =
          fmt::format("\377{:.214718908}\377", fmt::arg("/\0", 0.f));

    there are probably more places with calls to fill_n which could be checked

commit 9a91093a6b20fd22afd6739f5dcba3b00f6f8eaf
Merge: 7de0fdec e9bab6d0
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 9 06:06:32 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 7de0fdec38270f2d0302413904a5ef1b13d47177
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 20:08:53 2019 +0200

    clang format

commit bb375e1ca10eb3cc2c6684bf698ad4738ab7eb10
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 19:47:10 2019 +0200

    seems to pass the unit test now (except for the nan stuff from victor)

commit 786b4b7351bc8e305ad7e68d11ca6b542f66d456
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 19:25:23 2019 +0200

    add assert triggering data, and unit test

commit 2790e480b81ec83d00315aa69407fe71b8c4c637
Merge: fa859a05 ca978b3d
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 18:42:51 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit fa859a05c2c3abef263166f3a44cdbaa3122d642
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 18:18:54 2019 +0200

    add crash

commit 1f6e341b1c4bc966a44c7a98b63f22bd65958d0b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 18:18:27 2019 +0200

    assert floating point is finite internally

commit 50877748d08a0f4433af4f1213c5bc9021e76e7a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 17:32:03 2019 +0200

    invoke undefined behaviour inside chrono

commit bac7ac4149f2d001f7b36236e1710484674d029b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 17:31:35 2019 +0200

    refactor the fuzzer build script

commit b19c4cd84a0c8b6d4a7beb281ad881156173ce78
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:25:11 2019 +0200

    add one more crash

commit 7607592e06ebaa189dc180441fa1863430e0938e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:24:05 2019 +0200

    add crashing input

commit b059a98b27b40cd284e08a54493c25363d743557
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:21:25 2019 +0200

    trigger undefined behaviour with NaN durations

commit 7cce33250282b397c00159e6809125f5fc1c0190
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:20:51 2019 +0200

    add asan only fuzzer

commit 757319a4e30978d8661b3be8f75937266071b413
Merge: a574b21c c1d430e6
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 06:34:59 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	test/chrono-test.cc

commit a574b21c840339abef5e4ad33612b6efac6ad54b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat May 4 12:54:13 2019 +0200

    disable chrono fuzzing for now

    it triggers integer overflow and is not trivial to solve.

commit ff17322bceba53e0c2d9ebcf3756115ad148195e
Merge: d6a59851 29c10fbf
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat May 4 07:29:39 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit d6a598511c7dc0c208c2d688b2943b0d7c092029
Merge: 663b1592 4a4d72f9
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 1 20:44:16 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	test/chrono-test.cc

commit 663b159235f8ae5f58fe80bb02d49bfa392056b0
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 22:36:07 2019 +0200

    add crash case (triggers assertion)

commit 082a5cb226142ea30b415d4231cea9425748741a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 21:44:19 2019 +0200

    add const

commit b8d70919ea6be0d2e4c58ef82887496f55125ba9
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 21:29:43 2019 +0200

    provoke assertion

    fmt/include/fmt/core.h:246:
    typename std::make_unsigned<_Tp>::type fmt::v5::internal::to_unsigned(Int)
    [with Int = long int;
     typename std::make_unsigned<_Tp>::type = long unsigned int]:
    Assertion `(value >= 0) && "negative value"' failed.

commit e1966013af4eb7febf047d4629cc6236a6aae0e3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 20:46:16 2019 +0200

    add more crashes

commit 1394ae3fe915319ce7dc63d6a9dc820a29c9539e
Merge: 89338cad 4c721e3a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 17:16:14 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 89338cad4eed9441644ec8c5f1687b511c829ea4
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:40:32 2019 +0200

    add notes on how to reproduce crashes

commit 7dc3e4c7223617da274c4cccb9cf5459d0510e0b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:28:20 2019 +0200

    add crashes from chrono duration

commit b62e8bc783134c2d15ebf0372c8a61b41624e6b1
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:26:53 2019 +0200

    rename fuzzer

commit 7f4ab2b80d072fe3ad96e37e45f3fa807a85c99f
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:15:38 2019 +0200

    clang format

commit a6cc2a35a9799e88b9ed89e578b7aefd9b09ad09
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:12:04 2019 +0200

    add chrono duration fuzzer

commit 682713c9a61d52b46e95fdb7d970a8733f77ce88
Merge: 8b934b37 8d8ea21c
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 08:07:56 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 8b934b37161d1389de603ced6560982507bb7ae5
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:23:44 2019 +0200

    clang format

commit 793d97b9af33269f5628094f547f9771e968e3f2
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:23:17 2019 +0200

    tighten memory allocation

commit e2301f2430b15c9817433206597ef82c990f49a0
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:19:56 2019 +0200

    clean up and set license (BSD 2-clause simplified, same as fmt)

commit e64c3fb35719afa644dee1f9f17829cace6e17ff
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:04:23 2019 +0200

    clean up and add afl

commit ab46241206aaf46759fd3f292ee4a1088b652d15
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 09:54:48 2019 +0200

    drop c++17 requirement

commit 20c01e1acf330c8a28192f55b16efeebddb72ab0
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 09:25:19 2019 +0200

    initial oss-fuzz compatible version

commit 6cbd91a37cf36a1d0e994bb16cf44a12622f7dca
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 08:42:51 2019 +0200

    initial commit of fuzzers from https://github.com/pauldreik/fuzzfmt

commit eaddfb16d86ef1c259b737e2aab40145b0c956a6
Merge: e37d7db3 134904c8
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 08:38:19 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit e37d7db3b938c82f569d71e6bb00bd1bf8394db7
Merge: 99b2e08b bd516e34
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 21 17:28:06 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 99b2e08b6bef25b793df5ef07621c9c4402587de
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 21 10:30:56 2019 +0200

    stop high memory use when fuzzing
2019-06-30 06:10:07 -07:00
..
cmake Add <format> test 2019-04-13 11:37:52 -07:00
rtd fmtlib.net -> fmt.dev 2019-05-17 15:42:00 -07:00
Android.mk Move Android.mk to support and update 2018-05-27 06:20:54 -07:00
AndroidManifest.xml Manifest & Gradle comment 2018-11-05 17:31:09 -08:00
appveyor-build.py Add msvc2019 to CI 2019-06-01 07:50:15 -07:00
appveyor.yml Add msvc2019 to CI 2019-06-01 07:50:15 -07:00
build.gradle Gradle 4.10 >> Gradle 5.2 2019-02-10 16:15:32 -08:00
C++.sublime-syntax Add Sublime syntax (#1037) 2019-02-15 15:08:58 -08:00
compute-powers.py Reformat and add a comment 2018-08-15 06:54:43 -07:00
docopt.py Add a branch option to the release script 2016-03-13 10:27:15 -07:00
fmt.pro Update paths in fmt.pro 2018-05-09 06:21:00 -07:00
manage.py Fix format_to_n docs in 5.1.0 2019-05-08 12:40:25 -07:00
README Added a fmt.pro to support build using qmake (#641) 2018-02-10 07:22:02 -08:00
rst2md.py Make rst2md runnable and update changelog 2018-12-28 12:04:34 -08:00
travis-build.py add oss-fuzz support 2019-06-30 06:10:07 -07:00
update-coverity-branch.py Fix a typo 2018-01-20 09:43:56 -08:00
Vagrantfile Install git 2019-06-02 13:57:19 -07:00

README 

This directory contains build support files such as

* CMake modules
* Build scripts
* qmake (static build with dynamic libc only)