This is a patch release to fix security, performance, and build issues found in 1.8.0. Full commit log can be found at https://github.com/jqlang/jq/compare/jq-1.8.0...jq-1.8.1.
- CVE-2025-49014: Fix heap use after free in
f_strftime,f_strflocaltime. @wader 499c91bca9d4d027833bc62787d1bb075c03680e - GHSA-f946-j5j2-4w5m: Fix stack overflow in
node_min_byte_lenof oniguruma. @wader 5e159b34b179417e3e0404108190a2ac7d65611c
- Fix assertion failure when syntax error happens at the end of the query. @itchyny #3350
- Fix portability of
strptime/1especially for Windows. @itchyny #3342
- Revert the change of
reduce/foreachstate variable in 1.8.0 (#3205). This change was reverted due to serious performance regression. @itchyny #3349
- Add LICENSE notice of NetBSD's
strptime()to COPYING. @itchyny #3344
- Fix build on old Mac with old sed. @qianbinbin #3336
We are pleased to announce the release of version 1.8.0. This release includes a number of improvements since the last version. Note that some changes may introduce breaking changes to existing scripts, so be sure to read the following information carefully. Full commit log can be found at https://github.com/jqlang/jq/compare/jq-1.7.1...jq-1.8.0.
-
Change the version number pattern to
1.X.Y(1.8.0instead of1.8). @itchyny #2999 -
Generate provenance attestations for release artifacts and docker image. @lectrical #3225
gh attestation verify --repo jqlang/jq jq-linux-amd64 gh attestation verify --repo jqlang/jq oci://ghcr.io/jqlang/jq:1.8.0
- CVE-2024-23337: Fix signed integer overflow in
jvp_array_writeandjvp_object_rehash. @itchyny de21386681c0df0104a99d9d09db23a9b2a78b1e- The fix for this issue now limits the maximum size of arrays and objects to 536870912 (
2^29) elements.
- The fix for this issue now limits the maximum size of arrays and objects to 536870912 (
- CVE-2024-53427: Reject NaN with payload while parsing JSON.
@itchyny a09a4dfd55e6c24d04b35062ccfe4509748b1dd3
- The fix for this issue now drops support for NaN with payload in JSON (like
NaN123). Other JSON extensions likeNaNandInfinityare still supported.
- The fix for this issue now drops support for NaN with payload in JSON (like
- CVE-2025-48060: Fix heap buffer overflow in
jv_string_vfmt. @itchyny c6e041699d8cd31b97375a2596217aff2cfca85b - Fix use of uninitialized value in
check_literal. @itchyny #3324 - Fix segmentation fault on
strftime/1,strflocaltime/1. @itchyny #3271 - Fix unhandled overflow in
@base64d. @emanuele6 #3080
-
Fix
--indent 0implicitly enabling--compact-output. @amarshall @gbrlmarn @itchyny #3232$ jq --indent 0 . <<< '{ "foo": ["hello", "world"] }' { "foo": [ "hello", "world" ] } # Previously, this implied --compact-output, but now outputs with new lines.
-
Improve error messages to show problematic position in the filter. @itchyny #3292
$ jq -n '1 + $foo + 2' jq: error: $foo is not defined at <top-level>, line 1, column 5: 1 + $foo + 2 ^^^^ jq: 1 compile error
-
Include column number in parser and compiler error messages. @liviubobocu #3257
-
Fix error message for string literal beginning with single quote. @mattmeyers #2964
$ jq .foo <<< "{'foo':'bar'}" jq: parse error: Invalid string literal; expected ", but got ' at line 1, column 7 # Previously, the error message was Invalid numeric literal at line 1, column 7.
-
Improve
JQ_COLORSenvironment variable to support larger escapes like truecolor. @SArpnt #3282JQ_COLORS="38;2;255;173;173:38;2;255;214;165:38;2;253;255;182:38;2;202;255;191:38;2;155;246;255:38;2;160;196;255:38;2;189;178;255:38;2;255;198;255" jq -nc '[null,false,true,42,{"a":"bc"}]'
-
Add
--library-pathlong option for-L. @thaliaarchi #3194 -
Fix
--slurp --streamwhen input has no trailing newline character. @itchyny #3279 -
Fix
--indentoption to error for malformed values. @thaliaarchi #3195 -
Fix option parsing of
--binaryon non-Windows platforms. @calestyo #3131 -
Fix issue with
~/.jqon Windows where$HOMEis not set. @kirkoman #3114 -
Fix broken non-Latin output in the command help on Windows. @itchyny #3299
-
Increase the maximum parsing depth for JSON to 10000. @itchyny #3328
-
Parse short options in order given. @thaliaarchi #3194
-
Consistently reset color formatting. @thaliaarchi #3034
-
Add
trim/0,ltrim/0andrtrim/0to trim leading and trailing white spaces. @wader #3056$ jq -n '" hello " | trim, ltrim, rtrim' "hello" "hello " " hello"
-
Add
trimstr/1to trim string from both ends. @gbrlmarn #3319$ jq -n '"foobarfoo" | trimstr("foo")' "bar"
-
Add
add/1. Generator variant ofadd/0. @myaaaaaaaaa #3144$ jq -c '.sum = add(.xs[])' <<< '{"xs":[1,2,3]}' {"xs":[1,2,3],"sum":6}
-
Add
skip/2as the counterpart tolimit/2. @itchyny #3181$ jq -nc '[1,2,3,4,5] | [skip(2; .[])]' [3,4,5] -
Add
toboolean/0to convert strings to booleans. @brahmlower @itchyny #2098$ jq -n '"true", "false" | toboolean' true false
-
Add
@uridformat. Reverse of@uri. @fmgornick #3161$ jq -Rr '@urid' <<< '%6a%71' jq
- Use code point index for
indices/1,index/1andrindex/1. @wader #3065- This is a breaking change. Use
utf8bytelength/0to get byte index.
- This is a breaking change. Use
- Improve
tonumber/0performance and rejects numbers with leading or trailing white spaces. @itchyny @thaliaarchi #3055 #3195- This is a breaking change. Use
trim/0to remove leading and trailing white spaces.
- This is a breaking change. Use
- Populate timezone data when formatting time. This fixes timezone name in
strftime/1,strflocaltime/1for DST. @marcin-serwin @sihde #3203 #3264 #3323 - Preserve numerical precision on unary negation,
abs/0,length/0. @itchyny #3242 #3275 - Make
last(empty)yield no output values likefirst(empty). @itchyny #3179 - Make
ltrimstr/1andrtrimstr/1error for non-string inputs. @emanuele6 #2969 - Make
limit/2error for negative count. @itchyny #3181 - Fix
mktime/0overflow and allow fewer elements in date-time representation array. @emanuele6 #3070 #3162 - Fix non-matched optional capture group. @wader #3238
- Provide
strptime/1on all systems. @george-hopkins @fdellwing #3008 #3094 - Fix
_WIN32port ofstrptime. @emanuele6 #3071 - Improve
bsearch/1performance by implementing in C. @eloycoto #2945 - Improve
unique/0andunique_by/1performance. @itchyny @emanuele6 #3254 #3304 - Fix error messages including long string literal not to break Unicode characters. @itchyny #3249
- Remove
pow10/0as it has been deprecated in glibc 2.27. Useexp10/0instead. @itchyny #3059 - Remove private (and undocumented)
_nwisefilter. @itchyny #3260
-
Fix precedence of binding syntax against unary and binary operators. Also, allow some expressions as object values. @itchyny #3053 #3326
- This is a breaking change that may change the output of filters with binding syntax as follows.
$ jq -nc '[-1 as $x | 1,$x]' [1,-1] # previously, [-1,-1] $ jq -nc '1 | . + 2 as $x | -$x' -3 # previously, -1 $ jq -nc '{x: 1 + 2, y: false or true, z: null // 3}' {"x":3,"y":true,"z":3} # previously, syntax error
-
Support Tcl-style multiline comments. @emanuele6 #2989
#!/bin/sh -- # Can be use to do shebang scripts. # Next line will be seen as a comment be of the trailing backslash. \ exec jq ... # this jq expression will result in [1] [ 1, # \ 2 ]
-
Fix
foreachnot to break init backtracking withDUPN. @kanwren #3266$ jq -n '[1, 2] | foreach .[] as $x (0, 1; . + $x)' 1 3 2 4 -
Fix
reduce/foreachstate variable should not be reset each iteration. @itchyny #3205$ jq -n 'reduce range(5) as $x (0; .+$x | select($x!=2))' 8 $ jq -nc '[foreach range(5) as $x (0; .+$x | select($x!=2); [$x,.])]' [[0,0],[1,1],[3,4],[4,8]]
-
Support CRLF line breaks in filters. @itchyny #3274
-
Improve performance of repeating strings. @itchyny #3272
- Switch the homepage to custom domain jqlang.org. @itchyny @owenthereal #3243
- Make latest release instead of development version the default manual. @wader #3130
- Add opengraph meta tags. @wader #3247
- Replace jqplay.org with play.jqlang.org @owenthereal #3265
- Add missing line from decNumber's licence to
COPYING. @emanuele6 #3106 - Various document improvements. @tsibley #3322, @itchyny #3240, @jhcarl0814 #3239, @01mf02 #3184, @thaliaarchi #3199, @NathanBaulch #3173, @cjlarose #3164, @sheepster1 #3105, #3103, @kishoreinvits #3042, @jbrains #3035, @thalman #3033, @SOF3 #3017, @wader #3015, @wllm-rbnt #3002
- Fix build with GCC 15 (C23). @emanuele6 #3209
- Fix build with
-Woverlength-strings@emanuele6 #3019 - Fix compiler warning
type-limitsinfound_string. @itchyny #3263 - Fix compiler error in
jv_dtoa.candbuiltin.c. @UlrichEckhardt #3036 - Fix warning: a function definition without a prototype is deprecated. @itchyny #3259
- Define
_BSD_SOURCEinbuiltin.cfor OpenBSD support. @itchyny #3278 - Define empty
JV_{,V}PRINTF_LIKEmacros if__GNUC__is not defined. @emanuele6 #3160 - Avoid
ctype.habuse: castchartounsigned charfirst. @riastradh #3152 - Remove multiple calls to free when successively calling
jq_reset. @Sameesunkaria #3134 - Enable IBM z/OS support. @sachintu47 #3277
- Fix insecure
RUNPATH. @orbea #3212 - Avoid zero-length
calloc. @itchyny #3280 - Move oniguruma and decNumber to vendor directory. @itchyny #3234
- Run tests in C locale. @emanuele6 #3039
- Improve reliability of
NO_COLORtests. @dag-erling #3188 - Improve
shtestnot to fail ifJQ_COLORSandNO_COLORare already set. @SArpnt #3283 - Refactor constant folding tests. @itchyny #3233
- Make tests pass when
--disable-decnum. @nicowilliams 6d02d53f515bf1314d644eee93ba30b0d11c7d2b - Disable Valgrind by default during testing. @itchyny #3269
- CVE-2023-50246: Fix heap buffer overflow in jvp_literal_number_literal
- CVE-2023-50268: fix stack-buffer-overflow if comparing nan with payload
- Make the default background color more suitable for bright backgrounds. @mjarosie @taoky @nicowilliams @itchyny #2904
- Allow passing the inline jq script after
--. @emanuele6 #2919 - Restrict systems operations on OpenBSD and remove unused
mkstemp. @klemensn #2934 - Fix possible uninitialised value dereference if
jq_init()fails. @emanuele6 @nicowilliams #2935
- Simplify
paths/0andpaths/1. @asheiduk @emanuele6 #2946 - Reject
U+001Fin string literals. @torsten-schenk @itchyny @wader #2911 - Remove unused nref accumulator in
block_bind_library. @emanuele6 #2914 - Remove a bunch of unused variables, and useless assignments. @emanuele6 #2914
- main.c: Remove unused EXIT_STATUS_EXACT option. @emanuele6 #2915
- Actually use the number correctly casted from double to int as index. @emanuele6 #2916
- src/builtin.c: remove unnecessary jv_copy-s in type_error/type_error2. @emanuele6 #2937
- Remove undefined behavior caught by LLVM 10 UBSAN. @Gaelan @emanuele6 #2926
- Convert decnum to binary64 (double) instead of decimal64. This makes jq behave like the JSON specification suggests and more similar to other languages. @wader @leonid-s-usov #2949
- Fix memory leaks on invalid input for
ltrimstr/1andrtrimstr/1. @emanuele6 #2977 - Fix memory leak on failed get for
setpath/2. @emanuele6 #2970 - Fix nan from json parsing also for nans with payload that start with 'n'. @emanuele6 #2985
- Allow carriage return characters in comments. @emanuele6 #2942 #2984
- Generate links in the man page. @emanuele6 #2931
- Standardize arch types to AMD64 & ARM64 from index page download dropdown. @owenthereal #2884
- Add extern C for C++. @rockwotj #2953
- Fix incorrect syntax for checksum file. @kamontat @wader #2899
- Remove
-dirtyversion suffix for windows release build. @itchyny #2888 - Make use of
odin tests more compatible. @nabijaczleweli @emanuele6 @nicowilliams #2922 - Add dependabot. @yeikel #2889
- Extend fuzzing setup to fuzz parser and JSON serializer. @DavidKorczynski @emanuele6 #2952
- Keep releasing executables with legacy names. @itchyny #2951
After a five year hiatus we're back with a GitHub organization, with new admins and new maintainers who have brought a great deal of energy to make a long-awaited and long-needed new release. We're very grateful for all the new owners, admins, and maintainers. Special thanks go to Owen Ou (@owenthereal) for pushing to set up a new GitHub organization for jq, Stephen Dolan (@stedolan) for transferring the jq repository to the new organization, @itchyny for doing a great deal of work to get the release done, Mattias Wadman (@wader) and Emanuele Torre (@emanuele6) for many PRs and code reviews. Many others also contributed PRs, issues, and code reviews as well, and you can find their contributions in the Git log and on the closed issues and PRs page.
Since the last stable release many things have happened:
- jq now lives at https://github.com/jqlang
- New maintainers, admins, and owners have been recruited.
- A list of current maintainers
- NEWS file is replaced by NEWS.md with Markdown format. @wader #2599
- CI, scan builds, release, website builds etc now use GitHub actions. @owenthereal @wader @itchyny #2596 #2603 #2620 #2723
- Lots of documentation improvements and fixes.
- Website updated with new section search box, better section ids for linking, dark mode, etc. @itchyny #2628
- Release builds for:
- Linux
amd64,arm64,armel,armhf,i386,mips,mips64,mips64el,mips64r6,mips64r6el,mipsel,mipsr6,mipsr6el,powerpc,ppc64el,riscv64ands390x - macOS
amd64andarm64 - Windows
i386andamd64 - Docker
linux/386,linux/amd64,linux/arm64,linux/mips64le,linux/ppc64le,linux/riscv64andlinux/s390x - More details see @owenthereal #2665
- Linux
- Docker images are now available from
ghcr.io/jqlang/jqinstead of Docker Hub. @itchyny #2652 #2686 - OSS-fuzz. @DavidKorczynski #2760 #2762
Full commit log can be found at https://github.com/jqlang/jq/compare/jq-1.6...jq-1.7 but here are some highlights:
-
Make object key color configurable using
JQ_COLORSenvironment variable. @itchyny @haguenau @ericpruitt #2703# this would make "field" bold yellow (`1;33`, the last value) $ JQ_COLORS="0;90:0;37:0;37:0;37:0;32:1;37:1;37:1;33" ./jq -n '{field: 123}' { "field": 123 }
-
Change the default color of null to Bright Black. @itchyny #2824
-
Respect
NO_COLORenvironment variable to disable color output. See https://no-color.org for details. @itchyny #2728 -
Improved
--helpoutput. Now mentions all options and nicer order. @itchyny @wader #2747 #2766 #2799 -
Fix multiple issues of exit code using
--exit-code/-eoption. @ryo1kato #1697# true-ish last output value exits with zero $ jq -ne true ; echo $? true 0 # false-ish last output value (false and null) exits with 1 $ jq -ne false ; echo $? false 1 # no output value exists with 4 $ jq -ne empty ; echo $? 4
-
Add
--binary/-bon Windows for binary output. To get\ninstead of\r\nline endings. @nicowilliams 0dab2b1 -
Add
--raw-output0for NUL (zero byte) separated output. @asottile @pabs3 @itchyny #1990 #2235 #2684# will output a zero byte after each output $ jq -n --raw-output0 '1,2,3' | xxd 00000000: 3100 3200 3300 1.2.3. # can be used with xargs -0 $ jq -n --raw-output0 '"a","b","c"' | xargs -0 -n1 a b c $ jq -n --raw-output0 '"a b c", "d\ne\nf"' | xargs -0 printf '[%s]\n' [a b c] [d e f] # can be used with read -d '' $ while IFS= read -r -d '' json; do > jq '.name' <<< "$json" > done < <(jq -n --raw-output0 '{name:"a b c"},{name:"d\ne\nf"}') "a b c" "d\ne\nf" # also it's an error to output a string containing a NUL when using NUL separator $ jq -n --raw-output0 '"\u0000"' jq: error (at <unknown>): Cannot dump a string containing NUL with --raw-output0 option
-
Fix assert crash and validate JSON for
--jsonarg. @wader #2658 -
Remove deprecated
--argfileoption. @itchyny #2768 -
Enable stack protection. @nicowilliams #2801
-
Use decimal number literals to preserve precision. Comparison operations respects precision but arithmetic operations might truncate. @leonid-s-usov #1752
# precision is preserved $ echo '100000000000000000' | jq . 100000000000000000 # comparison respects precision (this is false in JavaScript) $ jq -n '100000000000000000 < 100000000000000001' true # sort/0 works $ jq -n -c '[100000000000000001, 100000000000000003, 100000000000000004, 100000000000000002] | sort' [100000000000000001,100000000000000002,100000000000000003,100000000000000004] # arithmetic operations might truncate (same as JavaScript) $ jq -n '100000000000000000 + 10' 100000000000000020
-
Adds new builtin
pick(stream)to emit a projection of the input object or array. @pkoppstein #2656 #2779$ jq -n '{"a": 1, "b": {"c": 2, "d": 3}, "e": 4} | pick(.a, .b.c, .x)' { "a": 1, "b": { "c": 2 }, "x": null }
-
Adds new builtin
debug(msgs)that works likedebugbut applies a filter on the input before writing to stderr. @pkoppstein #2710$ jq -n '1 as $x | 2 | debug("Entering function foo with $x == \($x)", .) | (.+1)' ["DEBUG:","Entering function foo with $x == 1"] ["DEBUG:",2] 3 $ jq -n '{a: 1, b: 2, c: 3} | debug({a, b, sum: (.a+.b)})' ["DEBUG:",{"a":1,"b":2,"sum":3}] { "a": 1, "b": 2, "c": 3 }
-
Adds new builtin
scan($re; $flags). Was documented but not implemented. @itchyny #1961# look for pattern "ab" in "abAB" ignoring casing $ jq -n '"abAB" | scan("ab"; "i")' "ab" "AB"
-
Adds new builtin
absto get absolute value. This potentially allows the literal value of numbers to be preserved aslengthandfabsconvert to float. @pkoppstein #2767 -
Allow
ifwithoutelse-branch. When skipped theelse-branch will be.(identity). @chancez @wader #1825 #2481# convert 1 to "one" otherwise keep as is $ jq -n '1,2 | if . == 1 then "one" end' "one" 2 # behaves the same as $ jq -n '1,2 | if . == 1 then "one" else . end' "one" 2 # also works with elif $ jq -n '1,2,3 | if . == 1 then "one" elif . == 2 then "two" end "one" "two" 3
-
Allow use of
$bindingas key in object literals. @nicowilliams 8ea4a55$ jq -n '"a" as $key | {$key: 123}' { "a": 123 } # previously parentheses were needed $ jq -n '"a" as $key | {($key): 123}' { "a": 123 }
-
Allow dot between chained indexes when using
.["index"]@nicowilliams #1168$ jq -n '{"a": {"b": 123}} | .a["b"]' 123 # now this also works $ jq -n '{"a": {"b": 123}} | .a.["b"]' 123
-
Allow dot for chained value iterator
.[],.[]?@wader #2650$ jq -n '{"a": [123]} | .a[]' 123 # now this also works $ jq -n '{"a": [123]} | .a.[]' 123
-
Fix try/catch catches more than it should. @nicowilliams #2750
-
Speed up and refactor some builtins, also remove
scalars_or_empty/0. @muhmuhten #1845 -
Now
haltandhalt_errorexit immediately instead of continuing to the next input. @emanuele6 #2667 -
Fix issue converting string to number after previous convert error. @thalman #2400
-
Fix issue representing large numbers on some platforms causing invalid JSON output. @itchyny #2661
-
Fix deletion using assigning empty against arrays. @itchyny #2133
# now this works as expected, filter out all values over 2 by assigning empty $ jq -c '(.[] | select(. >= 2)) |= empty' <<< '[1,5,3,0,7]' [1,0]
-
Allow keywords to be used as binding name in more places. @emanuele6 #2681
-
Allow using
nanas NaN in JSON. @emanuele6 #2712 -
Expose a module's function names in
modulemeta. @mrwilson #2837 -
Fix
contains/1to handle strings with NUL. @nicowilliams 61cd6db -
Fix
stderr/0to output raw text without any decoration. @itchyny #2751 -
Fix
nth/2to emit empty on index out of range. @itchyny #2674 -
Fix
implodeto not assert and instead replace invalid Unicode codepoints. @wader #2646 -
Fix
indices/1andrindex/1in case of overlapping matches in strings. @emanuele6 #2718 -
Fix
sub/3to resolve issues involving global search-and-replace (gsub) operations. @pkoppstein #2641 -
Fix
significand/0,gamma/0anddrem/2to be available on macOS. @itchyny #2756 #2775 -
Fix empty regular expression matches. @itchyny #2677
-
Fix overflow exception of the modulo operator. @itchyny #2629
-
Fix string multiplication by 0 (and less than 1) to emit empty string. @itchyny #2142
-
Fix segfault when using libjq and threads. @thalman #2546
-
Fix constant folding of division and reminder with zero divisor. @itchyny #2797
-
Fix
error/0,error/1to throw null error. @emanuele6 #2823 -
Simpler and faster
transpose. @pkoppstein #2758 -
Simple and efficient implementation of
walk/1. @pkoppstein #2795 -
Remove deprecated filters
leaf_paths,recurse_down. @itchyny #2666
Release history
- jq version 1.6 was released on Fri Nov 2 2018
- jq version 1.5 was released on Sat Aug 15 2015
- jq version 1.4 was released on Mon Jun 9 2014
- jq version 1.3 was released on Sun May 19 2013
- jq version 1.2 was released on Thu Dec 20 2012
- jq version 1.1 was released on Sun Oct 21 2012
- jq version 1.0 was released on Sun Oct 21 2012
New features in 1.6 since 1.5:
-
Destructuring Alternation
-
New Builtins:
- builtins/0
- stderr/0
- halt/0, halt_error/1
- isempty/1
- walk/1
- utf8bytelength/1
- localtime/0, strflocaltime/1
- SQL-style builtins
- and more!
-
Add support for ASAN and UBSAN
-
Make it easier to use jq with shebangs (8f6f28c)
-
Add $ENV builtin variable to access environment
-
Add JQ_COLORS env var for configuring the output colors
New features in 1.5 since 1.4:
-
regular expressions (with Oniguruma)
-
a library/module system
-
many new builtins
- datetime builtins
- math builtins
- regexp-related builtins
- stream-related builtins (e.g., all/1, any/1)
- minimal I/O builtins (
inputs,debug)
-
new syntactic features, including:
- destructuring (
. as [$first, $second] | ...) - try/catch, generalized
?operator, and label/break foreach- multiple definitions of a function with different numbers of arguments
- destructuring (
-
command-line arguments
- --join-lines / -j for raw output
- --argjson and --slurpfile
- --tab and --indent
- --stream (streaming JSON parser)
- --seq (RFC7464 JSON text sequence)
- --run-tests improvements
-
optimizations:
- tail-call optimization
- reduce and foreach no longer leak a reference to .
New features in 1.4 since 1.3:
-
command-line arguments
- jq --arg-file variable file
- jq --unbuffered
- jq -e / --exit-status (set exit status based on outputs)
- jq -S / --sort-keys (now jq no longer sorts object keys by default
-
syntax
- .. -> like // in XPath (recursive traversal)
- question mark (e.g., .a?) to suppress errors
- ."foo" syntax (equivalent to .["foo"])
- better error handling for .foo
- added % operator (modulo)
- allow negation without requiring extra parenthesis
- more function arguments (up to six)
-
filters:
- any, all
- iterables, arrays, objects, scalars, nulls, booleans, numbers, strings, values
-
string built-ins:
- split
- join (join an array of strings with a given separator string)
- ltrimstr, rtrimstr
- startswith, endswith
- explode, implode
- fromjson, tojson
- index, rindex, indices
-
math functions
- floor, sqrt, cbrt, etcetera (depends on what's available from libm)
-
libjq -- a C API interface to jq's JSON representation and for running jq programs from C applications