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 30590-f14e077362) Lines: 2213 2528 87.5 % Date: 2026-01-01 09:21:12 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62579
Buchall_deg1	1204
Buchall_param	65211
FB_aut_perm	66252
FBgen	66250
Fincke_Pohst_bound	266516
Fincke_Pohst_ideal	266521
Fincke_Pohst_ideal_both	266521
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496392
GRHok	1530888
RgC_expbitprec	1237085
RgM_expbitprec	48790
RgV_is1	105
SPLIT	1408958
SPLIT_i	1252848
SUnits_archclean	77
Ur_ZC_mul	1392550
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392550
ZV_mul	7325
_nfnewprec	57720
act_arch	2057280
add	2250495
addRe_modIm	6906874
add_cyclotomic_units	64075
add_principal_part	31963
add_rel	2488372
add_rel_i	2972783
add_to_fact	2919722
already_known	2968643
assign_subFB	67017
automorphism_matrices	64062
automorphism_perms	64001
bad_check	96162
bad_subFB	307518
ballvol	66251
be_honest	7
bnf_build_cheapfu	285478
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785119
bnf_get_C	2819258
bnf_get_GD	276783
bnf_get_Ur	1392550
bnf_get_W	1397525
bnf_get_ga	271827
bnf_get_vbase	1392632
bnf_has_fu	285766
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841335
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65204
cache_prime_dec	921203
can_factor	18355706
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64000
clean_cols	92991
cleanarch	3071474
cleanarchunit	133868
compute_R	96225
compute_invres	64001
compute_multiple_of_R	121673
compute_multiple_of_R_pivot	575725
dbg_newrel	0
delete_FB	66252
delete_cache	64075
diagact_arch	64096
divide_p	5623831
divide_p_elt	2366
divide_p_id	185479
divide_p_quo	5435994
dump_gen	1228031
err_units	0
expand	0
expandext	31984
expbitprec	2840323
extract_full_lattice	64008
fact_ok	1228546
fact_update	2052157
factorgen	16943129
fixarch	1306932
free_GRHcheck	134426
genback	28784
get_archclean	40
get_clg2	64096
get_embs	122361
get_fs	7512623
get_log_embed	726037
get_norm_fact	1231475
get_norm_fact_primes	69
get_pr_lists	1392612
get_random_ideal	55557
get_regulator	48887
get_y	69
getfu	63999
i2print	0
idealHNF_mulred	3538
idealmulpowprime2	4663
init_GRHcheck	134431
init_famat	65805
init_red_mod_units	1107813
init_rel	64074
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237087
isprincipalfact	31984
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62486
matbotidembs	55457
matenlarge	55458
modIm	204620
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64075
nfsign_from_logarch	162318
nfsign_fu	241160
nfsign_tu	239980
nfsign_units	35
not_given	396
nthideal	64001
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122401
prec_arch	1410517
primeneeded	64001
reallocate	64074
recover_partFB	1392612
red_mod_units	1107813
rel_embed	1016947
rnd_rel	55558
rnd_rel_par	0
rnd_rel_seq	55558
set_fact	2315356
set_rel_alpha	948516
signunits	7
small_norm	66769
small_norm_par	0
small_norm_prec	63990
small_norm_seq	66767
split_ideal	1392549
step	28416345
store	9461787
subFB_change	26378
subFBgen	66251
tailres	1129327
tailresback	2258650
trim_list	122400
triv_gen	464660
try_elt	1667
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16