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 30862-ea47bd413c) Lines: 2218 2538 87.4 % Date: 2026-05-06 09:26:47 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62627
Buchall_deg1	1204
Buchall_param	65272
FB_aut_perm	66313
FBgen	66311
Fincke_Pohst_bound	267591
Fincke_Pohst_ideal	267595
Fincke_Pohst_ideal_both	267595
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496766
GRHok	2303986
RgC_expbitprec	1238641
RgM_expbitprec	48852
RgV_is1	105
SPLIT	1410501
SPLIT_i	1254115
SUnits_archclean	77
Ur_ZC_mul	1394096
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1394097
ZV_mul	7332
_nfnewprec	57799
act_arch	2059048
add	2252532
addRe_modIm	6917602
add_cyclotomic_units	64135
add_principal_part	32327
add_rel	2502548
add_rel_i	2987521
add_to_fact	2933507
already_known	2983347
assign_subFB	67047
automorphism_matrices	64125
automorphism_perms	64064
bad_check	96260
bad_subFB	308303
ballvol	66313
be_honest	7
bnf_build_cheapfu	285476
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37422
bnf_compactfu_mat	70
bnf_get_B	2788206
bnf_get_C	2823075
bnf_get_GD	276790
bnf_get_Ur	1394096
bnf_get_W	1399067
bnf_get_ga	271834
bnf_get_vbase	1394174
bnf_has_fu	285762
bnfinit0	2646
bnfinit_FP_worker	0
bnfisprincipal0	1843141
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65267
cache_prime_dec	922086
can_factor	18797425
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64061
clean_cols	93281
cleanarch	3076959
cleanarchunit	133992
compute_R	96322
compute_invres	64064
compute_multiple_of_R	121835
compute_multiple_of_R_pivot	578501
dbg_newrel	0
delete_FB	66312
delete_cache	64136
diagact_arch	64158
divide_p	5687002
divide_p_elt	2337
divide_p_id	185881
divide_p_quo	5498787
dump_gen	1229585
err_units	0
expand	0
expandext	32348
expbitprec	2843545
extract_full_lattice	64070
fact_ok	1230085
fact_update	2124655
factorgen	17383206
fixarch	1308552
free_GRHcheck	186236
genback	28783
get_archclean	40
get_clg2	64158
get_embs	122528
get_fs	7516532
get_log_embed	726195
get_norm_fact	1233030
get_norm_fact_primes	69
get_pr_lists	1394155
get_random_ideal	56573
get_regulator	48950
get_y	69
getfu	64064
i2print	0
idealHNF_mulred	3528
idealmulpowprime2	4761
init_GRHcheck	186234
init_famat	65867
init_red_mod_units	1109360
init_rel	64136
inv_fact	0
isprincipal	174779
isprincipalall	1410632
isprincipalarch	1238641
isprincipalfact	32348
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62540
matbotidembs	55429
matenlarge	55429
modIm	204747
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	199199
nfcyclotomicunits	64135
nfsign_from_logarch	162326
nfsign_fu	241152
nfsign_tu	239984
nfsign_units	35
not_given	396
nthideal	64064
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123421
prec_arch	1412425
primeneeded	64064
reallocate	64136
recover_partFB	1394155
red_mod_units	1109360
rel_embed	1017795
rnd_rel	56573
rnd_rel_par	0
rnd_rel_seq	56573
set_fact	2329393
set_rel_alpha	949475
signunits	7
small_norm	66777
small_norm_par	0
small_norm_prec	64061
small_norm_seq	66777
split_ideal	1394091
step	29168959
store	9537753
subFB_change	26657
subFBgen	66313
tailres	1130286
tailresback	2260573
trim_list	123421
triv_gen	464919
try_elt	1655
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16