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 30766-abc2a9856c) Lines: 2218 2538 87.4 % Date: 2026-03-27 09:27:04 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62615
Buchall_deg1	1204
Buchall_param	65254
FB_aut_perm	66304
FBgen	66304
Fincke_Pohst_bound	267585
Fincke_Pohst_ideal	267585
Fincke_Pohst_ideal_both	267588
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496727
GRHok	2303895
RgC_expbitprec	1237093
RgM_expbitprec	48846
RgV_is1	105
SPLIT	1408955
SPLIT_i	1252981
SUnits_archclean	77
Ur_ZC_mul	1392549
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392549
ZV_mul	7332
_nfnewprec	57791
act_arch	2057463
add	2250548
addRe_modIm	6907285
add_cyclotomic_units	64130
add_principal_part	32327
add_rel	2502642
add_rel_i	2987540
add_to_fact	2933557
already_known	2983350
assign_subFB	67039
automorphism_matrices	64118
automorphism_perms	64057
bad_check	96243
bad_subFB	308252
ballvol	66306
be_honest	7
bnf_build_cheapfu	285483
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785115
bnf_get_C	2819982
bnf_get_GD	276790
bnf_get_Ur	1392549
bnf_get_W	1397523
bnf_get_ga	271834
bnf_get_vbase	1392630
bnf_has_fu	285771
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841335
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65261
cache_prime_dec	921998
can_factor	18794422
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64057
clean_cols	93261
cleanarch	3071773
cleanarchunit	133978
compute_R	96305
compute_invres	64057
compute_multiple_of_R	121831
compute_multiple_of_R_pivot	577571
dbg_newrel	0
delete_FB	66307
delete_cache	64130
diagact_arch	64153
divide_p	5686729
divide_p_elt	2362
divide_p_id	185469
divide_p_quo	5498901
dump_gen	1228036
err_units	0
expand	0
expandext	32348
expbitprec	2840443
extract_full_lattice	64062
fact_ok	1228537
fact_update	2124687
factorgen	17381750
fixarch	1306995
free_GRHcheck	186217
genback	28784
get_archclean	40
get_clg2	64153
get_embs	122523
get_fs	7516469
get_log_embed	726194
get_norm_fact	1231482
get_norm_fact_primes	69
get_pr_lists	1392613
get_random_ideal	56554
get_regulator	48943
get_y	69
getfu	64056
i2print	0
idealHNF_mulred	3524
idealmulpowprime2	4761
init_GRHcheck	186218
init_famat	65860
init_red_mod_units	1107813
init_rel	64130
inv_fact	0
isprincipal	174779
isprincipalall	1409085
isprincipalarch	1237091
isprincipalfact	32348
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62533
matbotidembs	55430
matenlarge	55430
modIm	204732
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64130
nfsign_from_logarch	162322
nfsign_fu	241152
nfsign_tu	239986
nfsign_units	35
not_given	396
nthideal	64056
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123417
prec_arch	1410880
primeneeded	64055
reallocate	64130
recover_partFB	1392613
red_mod_units	1107813
rel_embed	1017725
rnd_rel	56554
rnd_rel_par	0
rnd_rel_seq	56554
set_fact	2329448
set_rel_alpha	949372
signunits	7
small_norm	66790
small_norm_par	0
small_norm_prec	64041
small_norm_seq	66790
split_ideal	1392547
step	29167737
store	9537588
subFB_change	26636
subFBgen	66306
tailres	1130150
tailresback	2260290
trim_list	123417
triv_gen	464660
try_elt	1678
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16