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 30587-f85873d515) Lines: 2215 2530 87.5 % Date: 2025-12-28 09:21:53 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62579
Buchall_deg1	1204
Buchall_param	65212
FB_aut_perm	66250
FBgen	66249
Fincke_Pohst_bound	266582
Fincke_Pohst_ideal	266581
Fincke_Pohst_ideal_both	266581
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496390
GRHok	1530867
RgC_expbitprec	1237086
RgM_expbitprec	48790
RgV_is1	105
SPLIT	1408950
SPLIT_i	1252849
SUnits_archclean	77
Ur_ZC_mul	1392550
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392550
ZV_mul	7325
_nfnewprec	57717
act_arch	2057282
add	2250499
addRe_modIm	6906859
add_cyclotomic_units	64073
add_principal_part	31963
add_rel	2488427
add_rel_i	2972962
add_to_fact	2919777
already_known	2968820
assign_subFB	67008
automorphism_matrices	64064
automorphism_perms	64001
bad_check	96221
bad_subFB	307553
ballvol	66249
be_honest	7
bnf_build_cheapfu	285486
bnf_build_cycgen	26724
bnf_build_matalpha	20
bnf_build_units	50737
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785111
bnf_get_C	2819254
bnf_get_GD	276783
bnf_get_Ur	1392550
bnf_get_W	1397521
bnf_get_ga	271827
bnf_get_vbase	1392628
bnf_has_fu	285773
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841334
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65205
cache_prime_dec	921207
can_factor	18355042
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64001
clean_cols	93096
cleanarch	3071480
cleanarchunit	133865
compute_R	96280
compute_invres	64001
compute_multiple_of_R	121734
compute_multiple_of_R_pivot	577576
dbg_newrel	0
delete_FB	66250
delete_cache	64073
diagact_arch	64098
divide_p	5623794
divide_p_elt	2320
divide_p_id	185479
divide_p_quo	5436003
dump_gen	1228032
err_units	0
expand	0
expandext	31983
expbitprec	2840324
extract_full_lattice	64006
fact_ok	1228547
fact_update	2052025
factorgen	16942528
fixarch	1306935
free_GRHcheck	134433
genback	28784
get_archclean	40
get_clg2	64098
get_embs	122419
get_fs	7513071
get_log_embed	726073
get_norm_fact	1231474
get_norm_fact_primes	69
get_pr_lists	1392610
get_random_ideal	55626
get_regulator	48887
get_y	69
getfu	63998
i2print	0
idealHNF_mulred	3536
idealmulpowprime2	4663
init_GRHcheck	134428
init_famat	65805
init_red_mod_units	1107813
init_rel	64073
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237088
isprincipalfact	31983
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24914
matbotid	62483
matbotidembs	55517
matenlarge	55517
modIm	204612
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64073
nfsign_from_logarch	162325
nfsign_fu	241160
nfsign_tu	239984
nfsign_units	35
not_given	396
nthideal	64001
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122458
prec_arch	1410516
primeneeded	64001
reallocate	64073
recover_partFB	1392610
red_mod_units	1107813
rel_embed	1017157
rnd_rel	55626
rnd_rel_par	0
rnd_rel_seq	55626
set_fact	2315401
set_rel_alpha	948779
signunits	7
small_norm	66761
small_norm_par	0
small_norm_prec	63996
small_norm_seq	66761
split_ideal	1392545
step	28416713
store	9461762
subFB_change	26426
subFBgen	66249
tailres	1129312
tailresback	2258626
trim_list	122458
triv_gen	464660
try_elt	1634
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16