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 30551-f8501633d1) Lines: 2215 2530 87.5 % Date: 2025-11-20 09:22:21 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Fincke_Pohst_ideal_par	0
bnfinit_FP_worker	0
bnrnewprec_shallow	0
dbg_newrel	0
err_units	0
expand	0
i2print	0
inv_fact	0
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
pack_FB	0
rnd_rel_par	0
small_norm_par	0
unpack_FB	0
wr_rel	0
be_honest	7
bnfnewprec	7
bnrnewprec	7
signunits	7
bnf_build_matalpha	20
makematal	20
nfsign_units	35
get_archclean	40
bnftestprimes	63
get_norm_fact_primes	69
get_y	69
bnf_compactfu_mat	70
myprecdbl	73
SUnits_archclean	77
chinese_unit	94
log2Mbound	94
log2fubound	94
vec_chinese_units	94
bnfnewprec_shallow	97
RgV_is1	105
ZM_remove_unused	164
chinese_unit_slice	274
chinese_unit_worker	274
not_given	396
Buchall_deg1	1204
FlxqX_chinese_unit	1379
try_elt	1649
divide_p_elt	2341
bnfinit0	2632
Vbase_to_FB	3349
pr_index	3349
idealHNF_mulred	3510
needed_bitprec	3849
idealmulpowprime2	4488
makecycgen	4956
ZV_mul	7283
pr_orbit_fill	11865
makeunits	24915
subFB_change	26390
bnf_build_cycgen	26725
genback	28777
add_principal_part	32172
expandext	32194
isprincipalfact	32194
bnf_compactfu	37422
RgM_expbitprec	48796
get_regulator	48893
bnf_build_units	50738
matbotidembs	55415
matenlarge	55415
get_random_ideal	55591
rnd_rel	55591
rnd_rel_seq	55591
_nfnewprec	57728
matbotid	62492
Buchall	62596
small_norm_prec	64018
automorphism_perms	64021
class_group_gen	64021
getfu	64021
compute_invres	64022
nthideal	64022
primeneeded	64022
extract_full_lattice	64026
automorphism_matrices	64085
add_cyclotomic_units	64095
delete_cache	64095
init_rel	64095
nfcyclotomicunits	64095
reallocate	64095
diagact_arch	64119
get_clg2	64119
buchall_end	65225
Buchall_param	65229
init_famat	65770
FBgen	66268
delete_FB	66271
FB_aut_perm	66272
ballvol	66272
subFBgen	66272
small_norm	66734
small_norm_seq	66735
assign_subFB	67032
clean_cols	93005
bad_check	96161
compute_R	96227
compute_multiple_of_R	121687
get_embs	122359
pre_allocate	122399
trim_list	122399
cleanarchunit	133896
init_GRHcheck	134683
free_GRHcheck	134687
nfsign_from_logarch	162326
isprincipal	174534
divide_p_id	185395
nf_cxlog_normalize	197126
modIm	204631
nfsign_tu	239984
nfsign_fu	241151
Fincke_Pohst_bound	266105
Fincke_Pohst_ideal	266105
Fincke_Pohst_ideal_both	266105
bnf_get_ga	271813
bnf_get_GD	276769
bnf_build_cheapfu	285483
bnf_has_fu	285769
bad_subFB	307592
triv_gen	464660
GRHchk	496404
compute_multiple_of_R_pivot	577298
get_log_embed	725373
cache_prime_dec	921258
set_rel_alpha	947664
rel_embed	1016255
init_red_mod_units	1107799
red_mod_units	1107799
tailres	1129661
dump_gen	1228026
fact_ok	1228575
get_norm_fact	1231460
isprincipalarch	1237073
RgC_expbitprec	1237075
SPLIT_i	1252510
fixarch	1306930
split_ideal	1392289
Ur_ZC_mul	1392290
ZV_divrem	1392290
bnf_get_Ur	1392290
get_pr_lists	1392352
recover_partFB	1392352
bnf_get_vbase	1392372
bnf_get_W	1397265
isprincipalall	1408672
SPLIT	1408698
prec_arch	1410481
GRHok	1532899
bnfisprincipal0	1841076
fact_update	1978391
act_arch	2057287
add	2250132
set_fact	2253560
tailresback	2259313
add_rel	2426362
bnf_get_B	2784597
bnf_get_C	2819172
expbitprec	2840311
add_to_fact	2845090
already_known	2905636
add_rel_i	2909770
cleanarch	3070718
divide_p_quo	5286474
divide_p	5474204
addRe_modIm	6905399
get_fs	7512574
store	9209815
factorgen	16807915
can_factor	18220128
step	28183002

Generated by: LCOV version 1.16