32024732769
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main: 85%

Ran 17 Aug 2026 11:28AM UTC

Jobs 1

Files 59

Run time 1min

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Committed 17 Aug 2026 11:23AM UTC coverage: 84.786%. Remained the same

Build # 32024732769

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push

github

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web-flow

Commit Message

Declare jn/yn in generated C, fixing wrong Bessel values (#855)

The integer-order Bessel functions jn/yn are XSI extensions rather than
ISO C, and glibc's <math.h> hides them in strict ISO mode. Compiling
generated code with -std=c17 therefore left the calls implicitly
declared as returning int, which is not just a warning: the double
return value is read as int, so jn/yn evaluated to garbage (0 here), and
a non-integer order argument was passed in the wrong register entirely.

Request the XSI declarations in the generated implementation preamble,
and drop -Wno-error=implicit-function-declaration from the demo test so
this stays enforced.

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

Coverage Stats

4213 of 4969 relevant lines covered (84.79%)

0.85 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	32024732769.1	17 Aug 2026 11:28AM UTC	59	84.79	GitHub Action Run

FEniCS / ffcx / 32024732769
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