IEEE754 is used at run time in 223 crates (of which 13 optionally). It is a direct run-time dependency in 14 crates. It's used only as a dev dependency in 23 crates (of which 3 directly).

Depender (with downloads and own rev deps) IEEE754 version
107K 14 fast-math ^0.2.6
307K 15 robust optional ^0.2
7.4K 4 accurate ^0.2
4.1K 53 rust-htslib ^0.2
1.2K 5 rmodbus ^0.2.6
6 ramp ^0.2
1 smartnoise_validator ^0.2.6
1 framp ^0.2
smartnoise_runtime ^0.2.6
whitenoise_runtime ^0.2.6
1 fidget ^0.2
num-shaman ^0.2
d4tools ^0.2.6
sps30 ^0.2
1.7M 78 hdrhistogram dev ^0.2.2
6.6K 3 almost dev ^0.2.6
2 hdrsample dev ^0.2.2