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 30744-52374ab6cf) Lines: 1262 1313 96.1 % Date: 2026-03-17 09:26:37 Functions: 96 97 99.0 % Legend: Lines: hit not hit

Function Name	Hit count
G3	3689
G4	1918
Gn24	105
Hseries	1575
Qp_gamma	216243
Qp_gamma_Dwork	215745
Qp_gamma_Morita	490
Qp_gamma_neg_Morita	238
Qp_lngamma	14
Qp_psi	245
_gpsi_der	84
_mul	150033
acos0	14
atan2_agm	184
atanhui	14
atanhuu	5516474
bern_u	211323
bern_unextu	7807452
cbrtu	245
cos12	49
cxarg	4472348
cxgamma	228191
cxpsi	4452
dblcabs	16716
dblcarg	233371
dblclog	233371
dblcnorm	270729
dlogE	4235
ellKk	6020
ellkprime	6020
err_atanh	28
err_psi	7
gacos	7931
gacosh	7994
gadw	215744
gamma2_n	37779
gamma_optim	225363
gamma_use_1	228156
gammafrac24	46102
gammafrac24_s	5628
gammahs	37779
garg	4489877
gasin	9040
gasinh	39578
gatan	59887
gatanh	68651
gcosh	3619
gcotanh	63
get_nmax	5506787
ggamma	634199
ggamma1m1	1211
ggammah	28
glngamma	38885
gpsi	49567
gpsi_der	784
gsinh	12992
gtanh	77161
lngamma1	15655
lngamma_n	7889
lngamma_sum	213302
mpacos	105
mpacosh	742
mparg	4472348
mpasin	745
mpasinh	3346
mpatan	4495800
mpatanh	7665
mpcosh	3528
mpcosh0	7
mpcotanh	7
mpfactr	407955
mpfactr_basecase	524
mpfactr_n	643
mpfactr_small	7889
mpsinh	6377
mpsinh0	0
mpsinhcosh	411002
mptanh	77056
muliunextu	7807340
mulu_interval_step_i	27481
mulu_interval_step_prec	27481
nboft	215744
negeuler	10661
psi1series	13685
psi_lim	4249
psi_n	21322
psi_sum	4249
rfix	8944692
sergamma	27720
serlngamma0	27755
serpsi	23877
serpsiz0	10486
sin12	21
sinx2	28
sqrtu	9422
tr	2374141
trans_fix_arg	251018

Generated by: LCOV version 1.16