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 30831-19b50a36d0) Lines: 2218 2538 87.4 % Date: 2026-04-23 09:26:12 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62624
Buchall_deg1	1204
Buchall_param	65264
FB_aut_perm	66307
FBgen	66305
Fincke_Pohst_bound	267513
Fincke_Pohst_ideal	267517
Fincke_Pohst_ideal_both	267517
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496727
GRHok	2304002
RgC_expbitprec	1237094
RgM_expbitprec	48845
RgV_is1	105
SPLIT	1408952
SPLIT_i	1252977
SUnits_archclean	77
Ur_ZC_mul	1392548
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392548
ZV_mul	7332
_nfnewprec	57789
act_arch	2057466
add	2250562
addRe_modIm	6907241
add_cyclotomic_units	64130
add_principal_part	32327
add_rel	2502504
add_rel_i	2987359
add_to_fact	2933446
already_known	2983177
assign_subFB	67030
automorphism_matrices	64120
automorphism_perms	64057
bad_check	96195
bad_subFB	308204
ballvol	66307
be_honest	7
bnf_build_cheapfu	285490
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50744
bnf_compactfu	37414
bnf_compactfu_mat	70
bnf_get_B	2785108
bnf_get_C	2819978
bnf_get_GD	276790
bnf_get_Ur	1392548
bnf_get_W	1397518
bnf_get_ga	271834
bnf_get_vbase	1392625
bnf_has_fu	285777
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841334
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65260
cache_prime_dec	921981
can_factor	18794344
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64055
clean_cols	93264
cleanarch	3071773
cleanarchunit	133979
compute_R	96255
compute_invres	64057
compute_multiple_of_R	121767
compute_multiple_of_R_pivot	577737
dbg_newrel	0
delete_FB	66305
delete_cache	64130
diagact_arch	64151
divide_p	5686520
divide_p_elt	2347
divide_p_id	185468
divide_p_quo	5498712
dump_gen	1228034
err_units	0
expand	0
expandext	32347
expbitprec	2840441
extract_full_lattice	64064
fact_ok	1228538
fact_update	2124586
factorgen	17381727
fixarch	1306999
free_GRHcheck	186235
genback	28783
get_archclean	40
get_clg2	64151
get_embs	122462
get_fs	7515113
get_log_embed	726102
get_norm_fact	1231481
get_norm_fact_primes	69
get_pr_lists	1392605
get_random_ideal	56500
get_regulator	48943
get_y	69
getfu	64056
i2print	0
idealHNF_mulred	3525
idealmulpowprime2	4761
init_GRHcheck	186231
init_famat	65857
init_red_mod_units	1107813
init_rel	64130
inv_fact	0
isprincipal	174779
isprincipalall	1409083
isprincipalarch	1237093
isprincipalfact	32347
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24921
matbotid	62533
matbotidembs	55368
matenlarge	55369
modIm	204725
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64130
nfsign_from_logarch	162326
nfsign_fu	241159
nfsign_tu	239991
nfsign_units	35
not_given	396
nthideal	64057
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123353
prec_arch	1410877
primeneeded	64057
reallocate	64130
recover_partFB	1392605
red_mod_units	1107813
rel_embed	1017587
rnd_rel	56501
rnd_rel_par	0
rnd_rel_seq	56501
set_fact	2329343
set_rel_alpha	949263
signunits	7
small_norm	66780
small_norm_par	0
small_norm_prec	64055
small_norm_seq	66780
split_ideal	1392542
step	29167465
store	9537245
subFB_change	26614
subFBgen	66307
tailres	1130185
tailresback	2260363
trim_list	123353
triv_gen	464660
try_elt	1676
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16