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 30634-7c77b4d1a9) Lines: 2218 2538 87.4 % Date: 2026-01-26 09:23:16 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62579
Buchall_deg1	1204
Buchall_param	65220
FB_aut_perm	66266
FBgen	66264
Fincke_Pohst_bound	267643
Fincke_Pohst_ideal	267640
Fincke_Pohst_ideal_both	267640
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496430
GRHok	1530927
RgC_expbitprec	1237094
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408954
SPLIT_i	1252979
SUnits_archclean	77
Ur_ZC_mul	1392547
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392549
ZV_mul	7332
_nfnewprec	57729
act_arch	2057331
add	2250552
addRe_modIm	6906943
add_cyclotomic_units	64090
add_principal_part	31963
add_rel	2502756
add_rel_i	2987672
add_to_fact	2933914
already_known	2983531
assign_subFB	67037
automorphism_matrices	64067
automorphism_perms	64007
bad_check	96334
bad_subFB	308312
ballvol	66265
be_honest	7
bnf_build_cheapfu	285480
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785114
bnf_get_C	2819255
bnf_get_GD	276790
bnf_get_Ur	1392547
bnf_get_W	1397523
bnf_get_ga	271834
bnf_get_vbase	1392630
bnf_has_fu	285767
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	921307
can_factor	18794734
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64008
clean_cols	93281
cleanarch	3071508
cleanarchunit	133880
compute_R	96395
compute_invres	64007
compute_multiple_of_R	121907
compute_multiple_of_R_pivot	579859
dbg_newrel	0
delete_FB	66267
delete_cache	64090
diagact_arch	64104
divide_p	5686949
divide_p_elt	2559
divide_p_id	185479
divide_p_quo	5498914
dump_gen	1228036
err_units	0
expand	0
expandext	31984
expbitprec	2840346
extract_full_lattice	64014
fact_ok	1228535
fact_update	2124356
factorgen	17381953
fixarch	1306945
free_GRHcheck	134441
genback	28784
get_archclean	40
get_clg2	64104
get_embs	122562
get_fs	7513625
get_log_embed	726101
get_norm_fact	1231478
get_norm_fact_primes	69
get_pr_lists	1392612
get_random_ideal	56603
get_regulator	48892
get_y	69
getfu	64007
i2print	0
idealHNF_mulred	3521
idealmulpowprime2	4761
init_GRHcheck	134440
init_famat	65811
init_red_mod_units	1107813
init_rel	64090
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237089
isprincipalfact	31984
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62494
matbotidembs	55508
matenlarge	55508
modIm	204629
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64090
nfsign_from_logarch	162327
nfsign_fu	241154
nfsign_tu	239977
nfsign_units	35
not_given	396
nthideal	64008
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123456
prec_arch	1410514
primeneeded	64008
reallocate	64090
recover_partFB	1392611
red_mod_units	1107813
rel_embed	1017530
rnd_rel	56603
rnd_rel_par	0
rnd_rel_seq	56603
set_fact	2329695
set_rel_alpha	948830
signunits	7
small_norm	66770
small_norm_par	0
small_norm_prec	63996
small_norm_seq	66770
split_ideal	1392547
step	29164283
store	9538374
subFB_change	26658
subFBgen	66265
tailres	1129375
tailresback	2258742
trim_list	123456
triv_gen	464660
try_elt	1824
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16