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 30558-88b7dc3357) Lines: 2215 2530 87.5 % Date: 2025-11-26 09:22:00 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62588
Buchall_deg1	1204
Buchall_param	65230
FB_aut_perm	66273
FBgen	66271
Fincke_Pohst_bound	266103
Fincke_Pohst_ideal	266109
Fincke_Pohst_ideal_both	266108
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496407
GRHok	1532845
RgC_expbitprec	1237074
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408697
SPLIT_i	1252512
SUnits_archclean	77
Ur_ZC_mul	1392289
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1392288
ZV_mul	7283
_nfnewprec	57729
act_arch	2057279
add	2250122
addRe_modIm	6905456
add_cyclotomic_units	64096
add_principal_part	32172
add_rel	2426483
add_rel_i	2909925
add_to_fact	2845239
already_known	2905790
assign_subFB	67030
automorphism_matrices	64082
automorphism_perms	64022
bad_check	96153
bad_subFB	307596
ballvol	66271
be_honest	7
bnf_build_cheapfu	285469
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37421
bnf_compactfu_mat	70
bnf_get_B	2784597
bnf_get_C	2819167
bnf_get_GD	276769
bnf_get_Ur	1392289
bnf_get_W	1397265
bnf_get_ga	271813
bnf_get_vbase	1392372
bnf_has_fu	285756
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841074
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65224
cache_prime_dec	921262
can_factor	18220144
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64021
clean_cols	93042
cleanarch	3070723
cleanarchunit	133894
compute_R	96214
compute_invres	64022
compute_multiple_of_R	121676
compute_multiple_of_R_pivot	577269
dbg_newrel	0
delete_FB	66271
delete_cache	64096
diagact_arch	64119
divide_p	5474400
divide_p_elt	2357
divide_p_id	185394
divide_p_quo	5286653
dump_gen	1228024
err_units	0
expand	0
expandext	32193
expbitprec	2840312
extract_full_lattice	64029
fact_ok	1228571
fact_update	1978520
factorgen	16807913
fixarch	1306929
free_GRHcheck	134682
genback	28777
get_archclean	40
get_clg2	64119
get_embs	122357
get_fs	7512132
get_log_embed	725397
get_norm_fact	1231459
get_norm_fact_primes	69
get_pr_lists	1392352
get_random_ideal	55580
get_regulator	48894
get_y	69
getfu	64021
i2print	0
idealHNF_mulred	3509
idealmulpowprime2	4488
init_GRHcheck	134679
init_famat	65770
init_red_mod_units	1107799
init_rel	64096
inv_fact	0
isprincipal	174534
isprincipalall	1408671
isprincipalarch	1237069
isprincipalfact	32192
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62492
matbotidembs	55411
matenlarge	55411
modIm	204632
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	64096
nfsign_from_logarch	162324
nfsign_fu	241135
nfsign_tu	239979
nfsign_units	35
not_given	396
nthideal	64022
pack_FB	0
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122397
prec_arch	1410479
primeneeded	64022
reallocate	64096
recover_partFB	1392339
red_mod_units	1107798
rel_embed	1016289
rnd_rel	55581
rnd_rel_par	0
rnd_rel_seq	55581
set_fact	2253691
set_rel_alpha	947662
signunits	7
small_norm	66742
small_norm_par	0
small_norm_prec	64020
small_norm_seq	66742
split_ideal	1392289
step	28186260
store	9210157
subFB_change	26410
subFBgen	66271
tailres	1129632
tailresback	2259249
trim_list	122397
triv_gen	464660
try_elt	1666
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16