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 30585-4c42182400) Lines: 2215 2530 87.5 % Date: 2025-12-23 09:21:19 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62579
Buchall_deg1	1204
Buchall_param	65219
FB_aut_perm	66257
FBgen	66256
Fincke_Pohst_bound	266575
Fincke_Pohst_ideal	266583
Fincke_Pohst_ideal_both	266583
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496429
GRHok	1530848
RgC_expbitprec	1237085
RgM_expbitprec	48789
RgV_is1	105
SPLIT	1408958
SPLIT_i	1252847
SUnits_archclean	77
Ur_ZC_mul	1392551
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392549
ZV_mul	7325
_nfnewprec	57728
act_arch	2057301
add	2250510
addRe_modIm	6906878
add_cyclotomic_units	64080
add_principal_part	32173
add_rel	2488430
add_rel_i	2972914
add_to_fact	2919770
already_known	2968775
assign_subFB	67026
automorphism_matrices	64069
automorphism_perms	64008
bad_check	96227
bad_subFB	307600
ballvol	66255
be_honest	7
bnf_build_cheapfu	285474
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50737
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785113
bnf_get_C	2819675
bnf_get_GD	276783
bnf_get_Ur	1392551
bnf_get_W	1397523
bnf_get_ga	271827
bnf_get_vbase	1392630
bnf_has_fu	285762
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841332
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65211
cache_prime_dec	921278
can_factor	18355708
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64007
clean_cols	93023
cleanarch	3071504
cleanarchunit	133872
compute_R	96287
compute_invres	64008
compute_multiple_of_R	121736
compute_multiple_of_R_pivot	576147
dbg_newrel	0
delete_FB	66256
delete_cache	64080
diagact_arch	64105
divide_p	5623860
divide_p_elt	2319
divide_p_id	185479
divide_p_quo	5436082
dump_gen	1228032
err_units	0
expand	0
expandext	32194
expbitprec	2840319
extract_full_lattice	64012
fact_ok	1228544
fact_update	2052221
factorgen	16943162
fixarch	1306937
free_GRHcheck	134428
genback	28784
get_archclean	40
get_clg2	64105
get_embs	122418
get_fs	7512799
get_log_embed	726082
get_norm_fact	1231471
get_norm_fact_primes	69
get_pr_lists	1392610
get_random_ideal	55624
get_regulator	48886
get_y	69
getfu	64008
i2print	0
idealHNF_mulred	3538
idealmulpowprime2	4663
init_GRHcheck	134427
init_famat	65812
init_red_mod_units	1107813
init_rel	64080
inv_fact	0
isprincipal	174779
isprincipalall	1408930
isprincipalarch	1237087
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24914
matbotid	62491
matbotidembs	55509
matenlarge	55509
modIm	204616
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64080
nfsign_from_logarch	162326
nfsign_fu	241157
nfsign_tu	239988
nfsign_units	35
not_given	396
nthideal	64008
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122458
prec_arch	1410726
primeneeded	64007
reallocate	64080
recover_partFB	1392610
red_mod_units	1107813
rel_embed	1017078
rnd_rel	55624
rnd_rel_par	0
rnd_rel_seq	55624
set_fact	2315387
set_rel_alpha	948665
signunits	7
small_norm	66762
small_norm_par	0
small_norm_prec	64003
small_norm_seq	66762
split_ideal	1392547
step	28417353
store	9461762
subFB_change	26438
subFBgen	66256
tailres	1129436
tailresback	2258865
trim_list	122458
triv_gen	464659
try_elt	1631
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16