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 30552-d1d0643eee) Lines: 2215 2530 87.5 % Date: 2025-11-21 09:22:16 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62599
Buchall_deg1	1204
Buchall_param	65231
FB_aut_perm	66272
FBgen	66272
Fincke_Pohst_bound	266121
Fincke_Pohst_ideal	266127
Fincke_Pohst_ideal_both	266127
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496404
GRHok	1532889
RgC_expbitprec	1237073
RgM_expbitprec	48796
RgV_is1	105
SPLIT	1408696
SPLIT_i	1252509
SUnits_archclean	77
Ur_ZC_mul	1392289
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1392289
ZV_mul	7283
_nfnewprec	57727
act_arch	2057280
add	2250127
addRe_modIm	6905418
add_cyclotomic_units	64096
add_principal_part	32172
add_rel	2426424
add_rel_i	2909822
add_to_fact	2845145
already_known	2905681
assign_subFB	67027
automorphism_matrices	64085
automorphism_perms	64022
bad_check	96166
bad_subFB	307642
ballvol	66272
be_honest	7
bnf_build_cheapfu	285474
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37422
bnf_compactfu_mat	70
bnf_get_B	2784595
bnf_get_C	2819169
bnf_get_GD	276768
bnf_get_Ur	1392289
bnf_get_W	1397266
bnf_get_ga	271813
bnf_get_vbase	1392373
bnf_has_fu	285761
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	921252
can_factor	18220222
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64022
clean_cols	93024
cleanarch	3070724
cleanarchunit	133891
compute_R	96230
compute_invres	64021
compute_multiple_of_R	121698
compute_multiple_of_R_pivot	576641
dbg_newrel	0
delete_FB	66272
delete_cache	64096
diagact_arch	64118
divide_p	5474304
divide_p_elt	2363
divide_p_id	185393
divide_p_quo	5286553
dump_gen	1228027
err_units	0
expand	0
expandext	32192
expbitprec	2840305
extract_full_lattice	64027
fact_ok	1228575
fact_update	1978489
factorgen	16807976
fixarch	1306926
free_GRHcheck	134685
genback	28777
get_archclean	40
get_clg2	64118
get_embs	122378
get_fs	7512147
get_log_embed	725421
get_norm_fact	1231459
get_norm_fact_primes	69
get_pr_lists	1392353
get_random_ideal	55613
get_regulator	48893
get_y	69
getfu	64020
i2print	0
idealHNF_mulred	3506
idealmulpowprime2	4488
init_GRHcheck	134683
init_famat	65770
init_red_mod_units	1107799
init_rel	64096
inv_fact	0
isprincipal	174534
isprincipalall	1408671
isprincipalarch	1237072
isprincipalfact	32192
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62493
matbotidembs	55433
matenlarge	55433
modIm	204629
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	64096
nfsign_from_logarch	162326
nfsign_fu	241147
nfsign_tu	239980
nfsign_units	35
not_given	396
nthideal	64021
pack_FB	0
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122418
prec_arch	1410480
primeneeded	64022
reallocate	64096
recover_partFB	1392353
red_mod_units	1107799
rel_embed	1016297
rnd_rel	55613
rnd_rel_par	0
rnd_rel_seq	55613
set_fact	2253633
set_rel_alpha	947679
signunits	7
small_norm	66731
small_norm_par	0
small_norm_prec	64020
small_norm_seq	66731
split_ideal	1392290
step	28184696
store	9209934
subFB_change	26421
subFBgen	66272
tailres	1129667
tailresback	2259325
trim_list	122418
triv_gen	464660
try_elt	1666
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16