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 30702-bddb8d6928) Lines: 1262 1313 96.1 % Date: 2026-02-23 02:23:56 Functions: 96 97 99.0 % Legend: Lines: hit not hit

Function Name	Hit count
G3	3153
G4	1637
Gn24	87
Hseries	1350
Qp_gamma	185309
Qp_gamma_Dwork	184894
Qp_gamma_Morita	410
Qp_gamma_neg_Morita	200
Qp_lngamma	10
Qp_psi	175
_gpsi_der	72
_mul	124466
acos0	12
atan2_agm	136
atanhui	12
atanhuu	4636300
bern_u	180417
bern_unextu	6656975
cbrtu	207
cos12	42
cxarg	3763744
cxgamma	193021
cxpsi	3812
dblcabs	12988
dblcarg	197423
dblclog	197423
dblcnorm	226811
dlogE	3626
ellKk	5129
ellkprime	5129
err_atanh	24
err_psi	6
gacos	6789
gacosh	6835
gadw	184894
gamma2_n	31169
gamma_optim	190716
gamma_use_1	192991
gammafrac24	38137
gammafrac24_s	4805
gammahs	31169
garg	3778434
gasin	7183
gasinh	17384
gatan	51322
gatanh	39088
gcosh	2587
gcotanh	45
get_nmax	4636312
ggamma	537368
ggamma1m1	1038
ggammah	23
glngamma	32265
gpsi	40082
gpsi_der	633
gsinh	10214
gtanh	66119
lngamma1	12189
lngamma_n	6759
lngamma_sum	181367
mpacos	89
mpacosh	628
mparg	3763744
mpasin	83
mpasinh	1409
mpatan	3783285
mpatanh	5413
mpcosh	2520
mpcosh0	5
mpcotanh	5
mpfactr	348499
mpfactr_basecase	424
mpfactr_n	526
mpfactr_small	6759
mpsinh	5156
mpsinh0	0
mpsinhcosh	351506
mptanh	66042
muliunextu	6656975
mulu_interval_step_i	22750
mulu_interval_step_prec	22750
nboft	184894
negeuler	7936
psi1series	10505
psi_lim	3638
psi_n	18275
psi_sum	3638
rfix	7527488
sergamma	21348
serlngamma0	21378
serpsi	18062
serpsiz0	7786
sin12	18
sinx2	24
sqrtu	8045
tr	1768567
trans_fix_arg	210463

Generated by: LCOV version 1.16