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 30549-267e77144f) Lines: 2215 2530 87.5 % Date: 2025-11-16 09:22:34 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62594
Buchall_deg1	1204
Buchall_param	65223
FB_aut_perm	66271
FBgen	66270
Fincke_Pohst_bound	266182
Fincke_Pohst_ideal	266184
Fincke_Pohst_ideal_both	266184
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496403
GRHok	1532928
RgC_expbitprec	1237072
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408698
SPLIT_i	1252508
SUnits_archclean	77
Ur_ZC_mul	1392290
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1392290
ZV_mul	7283
_nfnewprec	57728
act_arch	2057273
add	2250130
addRe_modIm	6905413
add_cyclotomic_units	64094
add_principal_part	32172
add_rel	2426371
add_rel_i	2909826
add_to_fact	2845113
already_known	2905689
assign_subFB	67030
automorphism_matrices	64084
automorphism_perms	64022
bad_check	96218
bad_subFB	307641
ballvol	66271
be_honest	7
bnf_build_cheapfu	285473
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37422
bnf_compactfu_mat	70
bnf_get_B	2784599
bnf_get_C	2819170
bnf_get_GD	276769
bnf_get_Ur	1392290
bnf_get_W	1397266
bnf_get_ga	271813
bnf_get_vbase	1392373
bnf_has_fu	285760
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841074
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65225
cache_prime_dec	921251
can_factor	18220222
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64022
clean_cols	93065
cleanarch	3070708
cleanarchunit	133893
compute_R	96282
compute_invres	64022
compute_multiple_of_R	121737
compute_multiple_of_R_pivot	577600
dbg_newrel	0
delete_FB	66270
delete_cache	64094
diagact_arch	64117
divide_p	5474165
divide_p_elt	2323
divide_p_id	185395
divide_p_quo	5286450
dump_gen	1228024
err_units	0
expand	0
expandext	32193
expbitprec	2840310
extract_full_lattice	64028
fact_ok	1228574
fact_update	1978498
factorgen	16808031
fixarch	1306916
free_GRHcheck	134686
genback	28777
get_archclean	40
get_clg2	64117
get_embs	122422
get_fs	7512270
get_log_embed	725459
get_norm_fact	1231460
get_norm_fact_primes	69
get_pr_lists	1392354
get_random_ideal	55660
get_regulator	48893
get_y	69
getfu	64020
i2print	0
idealHNF_mulred	3509
idealmulpowprime2	4488
init_GRHcheck	134684
init_famat	65770
init_red_mod_units	1107799
init_rel	64094
inv_fact	0
isprincipal	174534
isprincipalall	1408672
isprincipalarch	1237072
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62491
matbotidembs	55476
matenlarge	55478
modIm	204618
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	64094
nfsign_from_logarch	162325
nfsign_fu	241153
nfsign_tu	239976
nfsign_units	35
not_given	396
nthideal	64022
pack_FB	0
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122461
prec_arch	1410480
primeneeded	64022
reallocate	64094
recover_partFB	1392354
red_mod_units	1107799
rel_embed	1016398
rnd_rel	55660
rnd_rel_par	0
rnd_rel_seq	55660
set_fact	2253571
set_rel_alpha	947835
signunits	7
small_norm	66729
small_norm_par	0
small_norm_prec	64014
small_norm_seq	66729
split_ideal	1392290
step	28183226
store	9209795
subFB_change	26430
subFBgen	66271
tailres	1129668
tailresback	2259323
trim_list	122461
triv_gen	464660
try_elt	1632
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16