Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - trans2.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30835-e55edf4b45) Lines: 1274 1328 95.9 % Date: 2026-04-24 09:27:20 Functions: 96 97 99.0 % Legend: Lines: hit not hit

Function Name	Hit count
mpsinh0	0
err_psi	7
mpcosh0	7
mpcotanh	7
Qp_lngamma	14
acos0	14
atanhui	14
sin12	21
err_atanh	28
ggammah	28
sinx2	28
cos12	49
gcotanh	63
_gpsi_der	84
Gn24	105
mpacos	105
atan2_agm	184
Qp_gamma_neg_Morita	238
Qp_psi	245
cbrtu	245
Qp_gamma_Morita	490
mpfactr_basecase	524
mpfactr_n	643
mpasin	738
mpacosh	742
gpsi_der	784
ggamma1m1	1211
Hseries	1575
G4	1918
mpasinh	3360
mpcosh	3528
gcosh	3619
G3	3689
dlogE	4235
psi_lim	4249
psi_sum	4249
cxpsi	4452
gammafrac24_s	5628
ellKk	6020
ellkprime	6020
mpsinh	6391
mpatanh	7665
lngamma_n	7889
mpfactr_small	7889
gacos	7931
gacosh	7994
gasin	9033
sqrtu	9422
serpsiz0	10486
negeuler	10661
gsinh	12642
psi1series	13685
lngamma1	15655
dblcabs	16716
psi_n	21322
serpsi	23877
mulu_interval_step_i	27481
mulu_interval_step_prec	27481
sergamma	27720
serlngamma0	27755
gamma2_n	37779
gammahs	37779
glngamma	38899
gasinh	40698
gammafrac24	46102
gpsi	49567
gatan	59887
gatanh	70121
mptanh	77056
gtanh	77161
_mul	150033
bern_u	211323
lngamma_sum	213301
Qp_gamma_Dwork	215746
gadw	215746
nboft	215746
Qp_gamma	216243
gamma_optim	225363
gamma_use_1	228156
cxgamma	228192
dblclog	233372
dblcarg	233373
trans_fix_arg	251019
dblcnorm	270729
mpfactr	407955
mpsinhcosh	410988
ggamma	634186
tr	2374141
mparg	4475200
cxarg	4475214
garg	4492738
mpatan	4498671
get_nmax	5499267
atanhuu	5515762
muliunextu	7807397
bern_unextu	7807524
rfix	8950392

Generated by: LCOV version 1.16