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 30580-ef5a862e7f) Lines: 2215 2530 87.5 % Date: 2025-12-19 09:23:05 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62593
Buchall_deg1	1204
Buchall_param	65230
FB_aut_perm	66271
FBgen	66269
Fincke_Pohst_bound	266597
Fincke_Pohst_ideal	266602
Fincke_Pohst_ideal_both	266602
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1378
GRHchk	496511
GRHok	1533364
RgC_expbitprec	1237096
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408976
SPLIT_i	1252843
SUnits_archclean	77
Ur_ZC_mul	1392571
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392571
ZV_mul	7325
_nfnewprec	57738
act_arch	2057423
add	2250562
addRe_modIm	6907064
add_cyclotomic_units	64094
add_principal_part	32173
add_rel	2488623
add_rel_i	2973279
add_to_fact	2919943
already_known	2969140
assign_subFB	67027
automorphism_matrices	64081
automorphism_perms	64022
bad_check	96208
bad_subFB	307627
ballvol	66270
be_honest	7
bnf_build_cheapfu	285486
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37422
bnf_compactfu_mat	70
bnf_get_B	2785154
bnf_get_C	2819724
bnf_get_GD	276797
bnf_get_Ur	1392572
bnf_get_W	1397538
bnf_get_ga	271841
bnf_get_vbase	1392645
bnf_has_fu	285774
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841353
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65226
cache_prime_dec	921430
can_factor	18355553
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64022
clean_cols	93034
cleanarch	3071623
cleanarchunit	133896
compute_R	96271
compute_invres	64019
compute_multiple_of_R	121712
compute_multiple_of_R_pivot	576091
dbg_newrel	0
delete_FB	66271
delete_cache	64094
diagact_arch	64117
divide_p	5624010
divide_p_elt	2325
divide_p_id	185500
divide_p_quo	5436188
dump_gen	1228047
err_units	0
expand	0
expandext	32193
expbitprec	2840359
extract_full_lattice	64029
fact_ok	1228560
fact_update	2052173
factorgen	16943016
fixarch	1306948
free_GRHcheck	134707
genback	28798
get_archclean	40
get_clg2	64117
get_embs	122408
get_fs	7514273
get_log_embed	726194
get_norm_fact	1231490
get_norm_fact_primes	69
get_pr_lists	1392629
get_random_ideal	55598
get_regulator	48894
get_y	69
getfu	64022
i2print	0
idealHNF_mulred	3535
idealmulpowprime2	4663
init_GRHcheck	134705
init_famat	65826
init_red_mod_units	1107827
init_rel	64094
inv_fact	0
isprincipal	174786
isprincipalall	1408950
isprincipalarch	1237099
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62498
matbotidembs	55477
matenlarge	55478
modIm	204629
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64094
nfsign_from_logarch	162323
nfsign_fu	241149
nfsign_tu	239983
nfsign_units	35
not_given	396
nthideal	64021
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122448
prec_arch	1410754
primeneeded	64021
reallocate	64094
recover_partFB	1392628
red_mod_units	1107827
rel_embed	1017214
rnd_rel	55598
rnd_rel_par	0
rnd_rel_seq	55598
set_fact	2315555
set_rel_alpha	948760
signunits	7
small_norm	66777
small_norm_par	0
small_norm_prec	64002
small_norm_seq	66777
split_ideal	1392562
step	28415924
store	9462160
subFB_change	26422
subFBgen	66270
tailres	1129658
tailresback	2259296
trim_list	122448
triv_gen	464660
try_elt	1634
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16