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 - buch2.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30622-caa25a75db) Lines: 2218 2538 87.4 % Date: 2026-01-22 09:18:00 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	56802
Buchall_deg1	1196
Buchall_param	59444
FB_aut_perm	60330
FBgen	60328
Fincke_Pohst_bound	247810
Fincke_Pohst_ideal	247809
Fincke_Pohst_ideal_both	247809
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1364
GRHchk	452546
GRHok	1487025
RgC_expbitprec	1224371
RgM_expbitprec	43623
RgV_is1	105
SPLIT	1396219
SPLIT_i	1245702
SUnits_archclean	77
Ur_ZC_mul	1379811
Vbase_to_FB	3421
ZM_remove_unused	163
ZV_divrem	1379811
ZV_mul	7289
_nfnewprec	52420
act_arch	2019197
add	2224705
addRe_modIm	6795647
add_cyclotomic_units	58307
add_principal_part	31278
add_rel	2385889
add_rel_i	2841453
add_to_fact	2826080
already_known	2837735
assign_subFB	61080
automorphism_matrices	58291
automorphism_perms	58229
bad_check	88588
bad_subFB	281870
ballvol	60330
be_honest	7
bnf_build_cheapfu	255315
bnf_build_cycgen	24974
bnf_build_matalpha	20
bnf_build_units	47723
bnf_compactfu	32592
bnf_compactfu_mat	70
bnf_get_B	2759642
bnf_get_C	2792355
bnf_get_GD	274860
bnf_get_Ur	1379811
bnf_get_W	1384569
bnf_get_ga	270122
bnf_get_vbase	1379894
bnf_has_fu	255601
bnfinit0	2641
bnfinit_FP_worker	0
bnfisprincipal0	1827542
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	59425
cache_prime_dec	838631
can_factor	18524851
chinese_unit	93
chinese_unit_slice	271
chinese_unit_worker	271
class_group_gen	58229
clean_cols	84375
cleanarch	3014907
cleanarchunit	121324
compute_R	88653
compute_invres	58229
compute_multiple_of_R	111946
compute_multiple_of_R_pivot	541820
dbg_newrel	0
delete_FB	60330
delete_cache	58307
diagact_arch	58326
divide_p	5509259
divide_p_elt	2477
divide_p_id	179808
divide_p_quo	5326975
dump_gen	1215562
err_units	0
expand	0
expandext	31300
expbitprec	2804077
extract_full_lattice	58235
fact_ok	1215859
fact_update	2087076
factorgen	17124867
fixarch	1287454
free_GRHcheck	128662
genback	27186
get_archclean	40
get_clg2	58326
get_embs	112593
get_fs	6872359
get_log_embed	664828
get_norm_fact	1218970
get_norm_fact_primes	69
get_pr_lists	1379874
get_random_ideal	53486
get_regulator	43719
get_y	69
getfu	58229
i2print	0
idealHNF_mulred	3492
idealmulpowprime2	4762
init_GRHcheck	128655
init_famat	60030
init_red_mod_units	1103177
init_rel	58307
inv_fact	0
isprincipal	174122
isprincipalall	1395293
isprincipalarch	1224371
isprincipalfact	31300
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	93
log2fubound	93
makecycgen	4738
makematal	20
makeunits	21899
matbotid	56716
matbotidembs	51333
matenlarge	51333
modIm	186970
myprecdbl	73
needed_bitprec	3817
nf_cxlog_normalize	196897
nfcyclotomicunits	58307
nfsign_from_logarch	145856
nfsign_fu	215798
nfsign_tu	214618
nfsign_units	35
not_given	392
nthideal	58228
pack_FB	0
pr_index	3421
pr_orbit_fill	11865
pre_allocate	113483
prec_arch	1397042
primeneeded	58229
reallocate	58307
recover_partFB	1379874
red_mod_units	1103177
rel_embed	938599
rnd_rel	53486
rnd_rel_par	0
rnd_rel_seq	53486
set_fact	2226297
set_rel_alpha	870684
signunits	7
small_norm	59920
small_norm_par	0
small_norm_prec	58230
small_norm_seq	59920
split_ideal	1379811
step	28655510
store	9223718
subFB_change	25015
subFBgen	60330
tailres	1028112
tailresback	2056216
trim_list	113483
triv_gen	463611
try_elt	1756
unpack_FB	0
vec_chinese_units	93
wr_rel	0

Generated by: LCOV version 1.16