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 30835-e55edf4b45) Lines: 2218 2538 87.4 % Date: 2026-04-25 09:26:46 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62627
Buchall_deg1	1204
Buchall_param	65267
FB_aut_perm	66306
FBgen	66302
Fincke_Pohst_bound	267563
Fincke_Pohst_ideal	267565
Fincke_Pohst_ideal_both	267565
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496726
GRHok	2303841
RgC_expbitprec	1237094
RgM_expbitprec	48846
RgV_is1	105
SPLIT	1408954
SPLIT_i	1252978
SUnits_archclean	77
Ur_ZC_mul	1392548
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392548
ZV_mul	7332
_nfnewprec	57788
act_arch	2057469
add	2250569
addRe_modIm	6907230
add_cyclotomic_units	64129
add_principal_part	32327
add_rel	2502496
add_rel_i	2987380
add_to_fact	2933446
already_known	2983201
assign_subFB	67034
automorphism_matrices	64120
automorphism_perms	64057
bad_check	96226
bad_subFB	308256
ballvol	66306
be_honest	7
bnf_build_cheapfu	285471
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50744
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785110
bnf_get_C	2819979
bnf_get_GD	276790
bnf_get_Ur	1392548
bnf_get_W	1397521
bnf_get_ga	271834
bnf_get_vbase	1392628
bnf_has_fu	285759
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841333
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65260
cache_prime_dec	921994
can_factor	18794790
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64056
clean_cols	93283
cleanarch	3071760
cleanarchunit	133978
compute_R	96289
compute_invres	64057
compute_multiple_of_R	121815
compute_multiple_of_R_pivot	577484
dbg_newrel	0
delete_FB	66306
delete_cache	64129
diagact_arch	64153
divide_p	5686574
divide_p_elt	2335
divide_p_id	185469
divide_p_quo	5498775
dump_gen	1228040
err_units	0
expand	0
expandext	32348
expbitprec	2840443
extract_full_lattice	64063
fact_ok	1228540
fact_update	2124728
factorgen	17382146
fixarch	1306994
free_GRHcheck	186222
genback	28784
get_archclean	40
get_clg2	64153
get_embs	122506
get_fs	7516203
get_log_embed	726149
get_norm_fact	1231480
get_norm_fact_primes	69
get_pr_lists	1392608
get_random_ideal	56550
get_regulator	48943
get_y	69
getfu	64057
i2print	0
idealHNF_mulred	3528
idealmulpowprime2	4761
init_GRHcheck	186217
init_famat	65861
init_red_mod_units	1107813
init_rel	64129
inv_fact	0
isprincipal	174779
isprincipalall	1409084
isprincipalarch	1237094
isprincipalfact	32347
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24921
matbotid	62533
matbotidembs	55414
matenlarge	55414
modIm	204728
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64129
nfsign_from_logarch	162326
nfsign_fu	241159
nfsign_tu	239983
nfsign_units	35
not_given	396
nthideal	64057
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123399
prec_arch	1410878
primeneeded	64057
reallocate	64129
recover_partFB	1392608
red_mod_units	1107813
rel_embed	1017668
rnd_rel	56550
rnd_rel_par	0
rnd_rel_seq	56550
set_fact	2329332
set_rel_alpha	949339
signunits	7
small_norm	66777
small_norm_par	0
small_norm_prec	64055
small_norm_seq	66777
split_ideal	1392545
step	29168359
store	9537231
subFB_change	26652
subFBgen	66306
tailres	1130195
tailresback	2260392
trim_list	123399
triv_gen	464660
try_elt	1655
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16