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 30571-c0dfe82732) Lines: 2215 2530 87.5 % Date: 2025-12-11 09:22:11 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62607
Buchall_deg1	1204
Buchall_param	65245
FB_aut_perm	66285
FBgen	66284
Fincke_Pohst_bound	266699
Fincke_Pohst_ideal	266703
Fincke_Pohst_ideal_both	266704
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1378
GRHchk	496654
GRHok	1533162
RgC_expbitprec	1237116
RgM_expbitprec	48804
RgV_is1	105
SPLIT	1409000
SPLIT_i	1252846
SUnits_archclean	77
Ur_ZC_mul	1392588
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392591
ZV_mul	7325
_nfnewprec	57741
act_arch	2057560
add	2250665
addRe_modIm	6907393
add_cyclotomic_units	64109
add_principal_part	32173
add_rel	2489608
add_rel_i	2974705
add_to_fact	2920904
already_known	2970565
assign_subFB	67045
automorphism_matrices	64098
automorphism_perms	64036
bad_check	96275
bad_subFB	307745
ballvol	66284
be_honest	7
bnf_build_cheapfu	285501
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37428
bnf_compactfu_mat	70
bnf_get_B	2785196
bnf_get_C	2819776
bnf_get_GD	276811
bnf_get_Ur	1392588
bnf_get_W	1397566
bnf_get_ga	271855
bnf_get_vbase	1392673
bnf_has_fu	285788
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841374
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65239
cache_prime_dec	921663
can_factor	18356828
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64036
clean_cols	93100
cleanarch	3071817
cleanarchunit	133916
compute_R	96336
compute_invres	64036
compute_multiple_of_R	121797
compute_multiple_of_R_pivot	577578
dbg_newrel	0
delete_FB	66285
delete_cache	64109
diagact_arch	64133
divide_p	5625784
divide_p_elt	2343
divide_p_id	185521
divide_p_quo	5437898
dump_gen	1228058
err_units	0
expand	0
expandext	32193
expbitprec	2840407
extract_full_lattice	64042
fact_ok	1228574
fact_update	2052824
factorgen	16944200
fixarch	1306982
free_GRHcheck	134701
genback	28812
get_archclean	40
get_clg2	64133
get_embs	122489
get_fs	7516594
get_log_embed	726407
get_norm_fact	1231499
get_norm_fact_primes	69
get_pr_lists	1392653
get_random_ideal	55648
get_regulator	48901
get_y	69
getfu	64036
i2print	0
idealHNF_mulred	3539
idealmulpowprime2	4663
init_GRHcheck	134700
init_famat	65840
init_red_mod_units	1107841
init_rel	64109
inv_fact	0
isprincipal	174793
isprincipalall	1408973
isprincipalarch	1237111
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62506
matbotidembs	55530
matenlarge	55530
modIm	204644
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64109
nfsign_from_logarch	162327
nfsign_fu	241144
nfsign_tu	239991
nfsign_units	35
not_given	396
nthideal	64036
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122528
prec_arch	1410783
primeneeded	64036
reallocate	64109
recover_partFB	1392653
red_mod_units	1107840
rel_embed	1017713
rnd_rel	55648
rnd_rel_par	0
rnd_rel_seq	55648
set_fact	2316476
set_rel_alpha	949112
signunits	7
small_norm	66808
small_norm_par	0
small_norm_prec	64035
small_norm_seq	66808
split_ideal	1392590
step	28419443
store	9465721
subFB_change	26434
subFBgen	66284
tailres	1129936
tailresback	2259866
trim_list	122528
triv_gen	464660
try_elt	1651
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16