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

Generated by: LCOV version 1.16