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 30674-be81ecfdd4) Lines: 2218 2538 87.4 % Date: 2026-02-10 09:23:17 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62576
Buchall_deg1	1204
Buchall_param	65216
FB_aut_perm	66267
FBgen	66265
Fincke_Pohst_bound	267586
Fincke_Pohst_ideal	267582
Fincke_Pohst_ideal_both	267592
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1378
GRHchk	496430
GRHok	1530803
RgC_expbitprec	1237093
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408955
SPLIT_i	1252981
SUnits_archclean	77
Ur_ZC_mul	1392544
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392546
ZV_mul	7332
_nfnewprec	57725
act_arch	2057344
add	2250563
addRe_modIm	6906961
add_cyclotomic_units	64090
add_principal_part	31962
add_rel	2502661
add_rel_i	2987512
add_to_fact	2933823
already_known	2983373
assign_subFB	67041
automorphism_matrices	64070
automorphism_perms	64008
bad_check	96284
bad_subFB	308293
ballvol	66267
be_honest	7
bnf_build_cheapfu	285475
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37414
bnf_compactfu_mat	70
bnf_get_B	2785118
bnf_get_C	2819256
bnf_get_GD	276790
bnf_get_Ur	1392544
bnf_get_W	1397526
bnf_get_ga	271834
bnf_get_vbase	1392633
bnf_has_fu	285762
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841331
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65212
cache_prime_dec	921308
can_factor	18794653
chinese_unit	94
chinese_unit_slice	272
chinese_unit_worker	272
class_group_gen	64008
clean_cols	93233
cleanarch	3071530
cleanarchunit	133881
compute_R	96352
compute_invres	64008
compute_multiple_of_R	121858
compute_multiple_of_R_pivot	579501
dbg_newrel	0
delete_FB	66267
delete_cache	64090
diagact_arch	64105
divide_p	5686865
divide_p_elt	2561
divide_p_id	185478
divide_p_quo	5498826
dump_gen	1228036
err_units	0
expand	0
expandext	31983
expbitprec	2840345
extract_full_lattice	64012
fact_ok	1228541
fact_update	2124013
factorgen	17381912
fixarch	1306944
free_GRHcheck	134431
genback	28783
get_archclean	40
get_clg2	64105
get_embs	122517
get_fs	7513070
get_log_embed	726056
get_norm_fact	1231478
get_norm_fact_primes	69
get_pr_lists	1392613
get_random_ideal	56553
get_regulator	48894
get_y	69
getfu	64007
i2print	0
idealHNF_mulred	3523
idealmulpowprime2	4761
init_GRHcheck	134430
init_famat	65812
init_red_mod_units	1107813
init_rel	64090
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237092
isprincipalfact	31982
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62494
matbotidembs	55464
matenlarge	55464
modIm	204631
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64090
nfsign_from_logarch	162316
nfsign_fu	241156
nfsign_tu	239981
nfsign_units	35
not_given	396
nthideal	64007
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123410
prec_arch	1410514
primeneeded	64007
reallocate	64090
recover_partFB	1392613
red_mod_units	1107813
rel_embed	1017390
rnd_rel	56553
rnd_rel_par	0
rnd_rel_seq	56553
set_fact	2329602
set_rel_alpha	948708
signunits	7
small_norm	66774
small_norm_par	0
small_norm_prec	63999
small_norm_seq	66774
split_ideal	1392550
step	29162031
store	9538207
subFB_change	26637
subFBgen	66267
tailres	1129388
tailresback	2258777
trim_list	123410
triv_gen	464660
try_elt	1824
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16