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 30568-0d72d66ef5) Lines: 2215 2530 87.5 % Date: 2025-12-01 09:22:22 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62606
Buchall_deg1	1204
Buchall_param	65245
FB_aut_perm	66285
FBgen	66282
Fincke_Pohst_bound	266648
Fincke_Pohst_ideal	266645
Fincke_Pohst_ideal_both	266645
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496648
GRHok	1533142
RgC_expbitprec	1237111
RgM_expbitprec	48804
RgV_is1	105
SPLIT	1408997
SPLIT_i	1252846
SUnits_archclean	77
Ur_ZC_mul	1392589
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392587
ZV_mul	7325
_nfnewprec	57742
act_arch	2057555
add	2250658
addRe_modIm	6907357
add_cyclotomic_units	64108
add_principal_part	32173
add_rel	2489454
add_rel_i	2974371
add_to_fact	2920739
already_known	2970244
assign_subFB	67038
automorphism_matrices	64096
automorphism_perms	64036
bad_check	96219
bad_subFB	307666
ballvol	66285
be_honest	7
bnf_build_cheapfu	285487
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37429
bnf_compactfu_mat	70
bnf_get_B	2785195
bnf_get_C	2819773
bnf_get_GD	276811
bnf_get_Ur	1392588
bnf_get_W	1397565
bnf_get_ga	271855
bnf_get_vbase	1392672
bnf_has_fu	285774
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	921635
can_factor	18356860
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64035
clean_cols	93058
cleanarch	3071814
cleanarchunit	133915
compute_R	96282
compute_invres	64035
compute_multiple_of_R	121745
compute_multiple_of_R_pivot	576095
dbg_newrel	0
delete_FB	66285
delete_cache	64108
diagact_arch	64133
divide_p	5625608
divide_p_elt	2324
divide_p_id	185521
divide_p_quo	5437764
dump_gen	1228059
err_units	0
expand	0
expandext	32193
expbitprec	2840405
extract_full_lattice	64043
fact_ok	1228572
fact_update	2052477
factorgen	16944316
fixarch	1306977
free_GRHcheck	134700
genback	28812
get_archclean	40
get_clg2	64133
get_embs	122435
get_fs	7515602
get_log_embed	726334
get_norm_fact	1231501
get_norm_fact_primes	69
get_pr_lists	1392653
get_random_ideal	55601
get_regulator	48900
get_y	69
getfu	64035
i2print	0
idealHNF_mulred	3538
idealmulpowprime2	4663
init_GRHcheck	134696
init_famat	65840
init_red_mod_units	1107841
init_rel	64108
inv_fact	0
isprincipal	174793
isprincipalall	1408973
isprincipalarch	1237113
isprincipalfact	32193
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24914
matbotid	62505
matbotidembs	55478
matenlarge	55478
modIm	204648
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64108
nfsign_from_logarch	162321
nfsign_fu	241147
nfsign_tu	239974
nfsign_units	35
not_given	396
nthideal	64036
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122474
prec_arch	1410781
primeneeded	64034
reallocate	64108
recover_partFB	1392653
red_mod_units	1107840
rel_embed	1017466
rnd_rel	55601
rnd_rel_par	0
rnd_rel_seq	55601
set_fact	2316341
set_rel_alpha	948911
signunits	7
small_norm	66801
small_norm_par	0
small_norm_prec	64032
small_norm_seq	66801
split_ideal	1392589
step	28418934
store	9465417
subFB_change	26404
subFBgen	66285
tailres	1129896
tailresback	2259770
trim_list	122474
triv_gen	464660
try_elt	1634
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16