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: 2025-12-09 09:22:05 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62600
Buchall_deg1	1204
Buchall_param	65243
FB_aut_perm	66286
FBgen	66287
Fincke_Pohst_bound	266711
Fincke_Pohst_ideal	266710
Fincke_Pohst_ideal_both	266710
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496660
GRHok	1533169
RgC_expbitprec	1237113
RgM_expbitprec	48803
RgV_is1	105
SPLIT	1408994
SPLIT_i	1252842
SUnits_archclean	77
Ur_ZC_mul	1392585
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392587
ZV_mul	7325
_nfnewprec	57743
act_arch	2057549
add	2250655
addRe_modIm	6907391
add_cyclotomic_units	64110
add_principal_part	32173
add_rel	2489558
add_rel_i	2974656
add_to_fact	2920836
already_known	2970525
assign_subFB	67043
automorphism_matrices	64098
automorphism_perms	64036
bad_check	96275
bad_subFB	307733
ballvol	66287
be_honest	7
bnf_build_cheapfu	285493
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37429
bnf_compactfu_mat	70
bnf_get_B	2785192
bnf_get_C	2819768
bnf_get_GD	276811
bnf_get_Ur	1392585
bnf_get_W	1397563
bnf_get_ga	271855
bnf_get_vbase	1392671
bnf_has_fu	285780
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841373
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65240
cache_prime_dec	921664
can_factor	18356869
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64035
clean_cols	93066
cleanarch	3071822
cleanarchunit	133914
compute_R	96336
compute_invres	64036
compute_multiple_of_R	121801
compute_multiple_of_R_pivot	577084
dbg_newrel	0
delete_FB	66286
delete_cache	64110
diagact_arch	64131
divide_p	5625764
divide_p_elt	2372
divide_p_id	185520
divide_p_quo	5437876
dump_gen	1228058
err_units	0
expand	0
expandext	32194
expbitprec	2840398
extract_full_lattice	64041
fact_ok	1228571
fact_update	2052837
factorgen	16944275
fixarch	1306971
free_GRHcheck	134700
genback	28811
get_archclean	40
get_clg2	64131
get_embs	122493
get_fs	7516647
get_log_embed	726424
get_norm_fact	1231501
get_norm_fact_primes	69
get_pr_lists	1392651
get_random_ideal	55649
get_regulator	48900
get_y	69
getfu	64034
i2print	0
idealHNF_mulred	3537
idealmulpowprime2	4663
init_GRHcheck	134699
init_famat	65840
init_red_mod_units	1107841
init_rel	64110
inv_fact	0
isprincipal	174793
isprincipalall	1408973
isprincipalarch	1237115
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	55533
matenlarge	55533
modIm	204645
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64110
nfsign_from_logarch	162319
nfsign_fu	241142
nfsign_tu	239980
nfsign_units	35
not_given	396
nthideal	64036
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122533
prec_arch	1410778
primeneeded	64036
reallocate	64110
recover_partFB	1392651
red_mod_units	1107841
rel_embed	1017724
rnd_rel	55649
rnd_rel_par	0
rnd_rel_seq	55649
set_fact	2316451
set_rel_alpha	949103
signunits	7
small_norm	66810
small_norm_par	0
small_norm_prec	64033
small_norm_seq	66810
split_ideal	1392588
step	28419483
store	9465684
subFB_change	26433
subFBgen	66287
tailres	1129964
tailresback	2259924
trim_list	122533
triv_gen	464660
try_elt	1667
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16