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 30586-ccf601f509) Lines: 1467 1530 95.9 % Date: 2025-12-25 09:21:36 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
_intervalcmp	0
_mp_sub	0
scalepol2n	0
ZX_Uspensky_equal_yes	14
polgraeffe	14
ZX_Uspensky_no	21
ZX_Uspensky_equal	28
rootsdeg0	42
FFT	56
FFTinv	56
polmod_to_embed	84
FFT_i	98
sol_ok	3378
ZX_graeffe	5390
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15195
_sqrtnr	22588
polrootsbound_i	27124
polrootsbound	27131
RgX_normalize1	35732
ZX_realroots_irred	48553
realroots	50627
ZX_sturm_irred	116578
ZX_sturm_i	122973
split_pols	166675
polsolve	166680
splitcauchy	166686
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	266891
QX_complex_roots	296164
_gen_zero	325953
fix_roots1	398350
split_1	467781
conformal_mapping	467782
split_0_1	468140
split_0_2	468141
logradius	493820
update_radius	493827
optimize_split	493828
split_fromU	493828
parameters	493829
split_2	493829
split_0	494190
refine_F	502212
dft	502219
all_roots	535876
clean_roots	535924
a_posteriori_errors	536978
fix_roots	536978
mygprec_special	536982
logpre_modulus	606538
logmodulus	606540
abs_update_r	778541
ind_maxlog2	902406
isexactscalar	931714
isreal	961609
initdft	996047
dual_modulus	1012163
usp	1125993
ZX_sturmpart	1128311
check_ab	1178938
tocomplex	1213153
isvalidcoeff	1228140
ZX_Uspensky	1313801
conformal_basecase	1403457
conformal_pol	1403575
fujiwara_bound_real	1406768
split_complete	1525362
homothetie	1609589
append_clone	1613500
logmin_modulus	1614283
root_error	1911602
mygprecrc_special	2178245
ZX_rescale2prim	2233652
cmp_complex_appr	2237280
fujiwara_bound	2271066
checkbound	2355006
refine_H	2459872
scalepol	4288086
mygprec_absolute	4337357
_mp_mul	4374598
logmax_modulus	4449388
bkeval_single_power	5235222
splitpoleval	5235235
newton_polygon	5505178
X2XP1	5990108
_mp_sqr	6298111
dblexp	6547079
quicktofp	6976884
RgX_gtofp_bit	7028989
abs_update	8003471
mydbllogr	9544444
homothetie2n	9954242
_gen_nored	11202692
eval_rel_pol	13134076
fft	14154807
_gen_one	14472532
ZX_to_ZiX	16447576
pol_to_gaussint	17583445
_mp_add	24662081
_mp_cmul	34767858
myshiftrc	35494524
homothetie_gauss	36485404
lower_bound	40943150
findpower	40943657
graeffe	49491859
mydbllog2r	56169117
mygprec	63739361
ZiX_sqr	99007299
myshiftic	135771939
mygprecrc	215111708
mydbllog2i	226358910
dbllog2	302004344

Generated by: LCOV version 1.16