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 30499-74bdd0ac5b) Lines: 2205 2405 91.7 % Date: 2025-09-18 09:23:44 Functions: 156 167 93.4 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62598
Buchall_deg1	1204
Buchall_param	65230
FB_aut_perm	66273
FBgen	66269
Fincke_Pohst_bound	266139
Fincke_Pohst_ideal	266140
FlxqX_chinese_unit	1379
GRHchk	496409
GRHok	1532895
RgC_expbitprec	1237071
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408694
SPLIT_i	1252509
SUnits_archclean	77
Ur_ZC_mul	1392291
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1392291
ZV_mul	7283
_nfnewprec	57726
act_arch	2057275
add	2250132
addRe_modIm	6905460
add_cyclotomic_units	64096
add_principal_part	32173
add_rel	2426466
add_rel_i	2909932
add_to_fact	2845177
already_known	2905793
assign_subFB	67028
automorphism_matrices	64084
automorphism_perms	64022
bad_check	96174
bad_subFB	307603
ballvol	66273
be_honest	7
bnf_build_cheapfu	285483
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37420
bnf_compactfu_mat	70
bnf_get_B	2784589
bnf_get_C	2819167
bnf_get_GD	276769
bnf_get_Ur	1392291
bnf_get_W	1397259
bnf_get_ga	271813
bnf_get_vbase	1392366
bnf_has_fu	285771
bnfinit0	2632
bnfisprincipal0	1841071
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65225
cache_prime_dec	921249
can_factor	18220425
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64022
clean_cols	93006
cleanarch	3070726
cleanarchunit	133895
compute_R	96233
compute_invres	64022
compute_multiple_of_R	121701
compute_multiple_of_R_pivot	577290
dbg_newrel	0
delete_FB	66272
delete_cache	64096
diagact_arch	64117
divide_p	5474366
divide_p_elt	2372
divide_p_id	185395
divide_p_quo	5286608
dump_gen	1228026
err_units	0
expand	0
expandext	32193
expbitprec	2840309
extract_full_lattice	64028
fact_ok	1228574
fact_update	1978526
factorgen	16808200
fixarch	1306924
free_GRHcheck	134686
genback	28777
get_archclean	40
get_clg2	64117
get_embs	122384
get_fs	7512629
get_log_embed	725418
get_norm_fact	1231460
get_norm_fact_primes	69
get_pr_lists	1392348
get_random_ideal	55614
get_regulator	48893
get_y	69
getfu	64021
i2print	0
idealHNF_mulred	3508
idealmulpowprime2	4488
init_GRHcheck	134680
init_famat	65770
init_red_mod_units	1107799
init_rel	64096
inv_fact	0
isprincipal	174534
isprincipalall	1408671
isprincipalarch	1237069
isprincipalfact	32193
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62493
matbotidembs	55438
matenlarge	55438
modIm	204628
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	64096
nfsign_from_logarch	162325
nfsign_fu	241154
nfsign_tu	239983
nfsign_units	35
not_given	396
nthideal	64022
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122423
prec_arch	1410478
primeneeded	64022
reallocate	64096
recover_partFB	1392347
red_mod_units	1107799
rel_embed	1016358
rnd_rel	55614
set_fact	2253655
set_rel_alpha	947743
signunits	7
small_norm	66736
small_norm_prec	64021
split_ideal	1392283
step	28186197
store	9210056
subFB_change	26404
subFBgen	66273
tailres	1129646
tailresback	2259298
trim_list	122424
triv_gen	464660
try_elt	1664
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16