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 - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30318-7d854b8994) Lines: 1467 1530 95.9 % Date: 2025-06-06 09:19:58 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	289563
RgX_gtofp_bit	7017678
RgX_normalize1	35705
X2XP1	5198853
ZX_Uspensky	1058839
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15243
ZX_graeffe	5383
ZX_realroots_irred	48346
ZX_rescale2prim	1934635
ZX_sturm	3735
ZX_sturm_i	120078
ZX_sturm_irred	116343
ZX_sturmpart	876253
ZX_to_ZiX	16452300
ZiX_sqr	98969848
_gen_nored	11120607
_gen_one	14369747
_gen_zero	323541
_intervalcmp	0
_mp_add	24573497
_mp_cmul	34593585
_mp_mul	4360415
_mp_sqr	6273541
_mp_sub	0
_sqrtnr	22675
a_posteriori_errors	530200
abs_update	7999408
abs_update_r	777909
all_roots	529153
append_clone	1601624
bkeval_single_power	5195300
check_ab	926874
checkbound	1850878
checkvalidpol	266759
clean_roots	529193
cleanroots	231644
cmp_complex_appr	2229149
conformal_basecase	1403359
conformal_mapping	467747
conformal_pol	1403476
dblexp	6544712
dbllog2	300311171
dft	501960
dual_modulus	1011646
eval_rel_pol	13126871
fft	14144243
fft2	7462
findpower	40933189
fix_roots	530201
fix_roots1	393868
fujiwara_bound	2005272
fujiwara_bound_real	1148936
graeffe	49472293
homothetie	1608614
homothetie2n	9949127
homothetie_gauss	36478365
ind_maxlog2	901888
initdft	995528
isexactpol	239634
isexactscalar	931280
isreal	961316
isvalidcoeff	1227239
logmax_modulus	4448378
logmin_modulus	1614070
logmodulus	606082
logpre_modulus	606083
logradius	493570
lower_bound	40933798
mydbllog2i	224217533
mydbllog2r	56091761
mydbllogr	9540504
mygprec	63672478
mygprec_absolute	4296464
mygprec_special	530203
mygprecrc	214920310
mygprecrc_special	2159188
myshiftic	135724143
myshiftrc	35480927
newton_polygon	5501115
optimize_split	493570
parameters	493565
pol_to_gaussint	17575343
polgraeffe	14
polmod_to_embed	84
polrootsbound	27118
polrootsbound_i	27111
polsolve	165669
quicktofp	6444357
realroots	50620
refine_F	501956
refine_H	2458919
root_error	1897284
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4287117
scalepol2n	0
sol_ok	3378
solve_exact_pol	231040
split_0	493894
split_0_1	468069
split_0_2	468070
split_1	467748
split_2	493567
split_complete	1517983
split_fromU	493570
split_pols	165665
splitcauchy	165680
splitpoleval	5195261
tocomplex	1199996
update_radius	493569
usp	936445

Generated by: LCOV version 1.16