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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 95.9 % 1331 1277 Test Date: 2026-07-23 17:04:59 Functions: 99.0 % 97 96 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	805
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	10906
negeuler	11081
gsinh	12894
psi1series	13958
lngamma1	15686
dblcabs	16716
psi_n	21322
serpsi	24570
mulu_interval_step_i	27453
mulu_interval_step_prec	27453
sergamma	28392
serlngamma0	28427
gamma2_n	37751
gammahs	37751
glngamma	38899
gasinh	40698
gammafrac24	46074
gpsi	50239
gatan	59915
gatanh	70121
mptanh	77056
gtanh	77161
_mul	150033
bern_u	211323
lngamma_sum	214086
Qp_gamma_Dwork	215746
gadw	215746
nboft	215746
Qp_gamma	216243
gamma_optim	226177
gamma_use_1	228970
cxgamma	229005
dblcarg	234185
dblclog	234185
trans_fix_arg	251832
dblcnorm	271670
mpfactr	407955
mpsinhcosh	411002
ggamma	635643
tr	2474896
cxarg	4477407
mparg	4477407
garg	4494935
mpatan	4500879
atanhuu	5524141
get_nmax	5524155
bern_unextu	7829479
muliunextu	7829479
rfix	8954814

Generated by: LCOV version 2.0-1