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 30625-1bbc371a2f) Lines: 2218 2538 87.4 % Date: 2026-01-23 09:24:12 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62568
Buchall_deg1	1204
Buchall_param	65204
FB_aut_perm	66263
FBgen	66261
Fincke_Pohst_bound	267643
Fincke_Pohst_ideal	267641
Fincke_Pohst_ideal_both	267641
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496434
GRHok	1530857
RgC_expbitprec	1237094
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408958
SPLIT_i	1252982
SUnits_archclean	77
Ur_ZC_mul	1392550
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392550
ZV_mul	7332
_nfnewprec	57726
act_arch	2057346
add	2250574
addRe_modIm	6906919
add_cyclotomic_units	64086
add_principal_part	31963
add_rel	2502584
add_rel_i	2987424
add_to_fact	2933765
already_known	2983278
assign_subFB	67033
automorphism_matrices	64070
automorphism_perms	64008
bad_check	96341
bad_subFB	308343
ballvol	66262
be_honest	7
bnf_build_cheapfu	285483
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785117
bnf_get_C	2819256
bnf_get_GD	276788
bnf_get_Ur	1392550
bnf_get_W	1397524
bnf_get_ga	271833
bnf_get_vbase	1392631
bnf_has_fu	285770
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841334
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65211
cache_prime_dec	921327
can_factor	18795171
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64008
clean_cols	93253
cleanarch	3071513
cleanarchunit	133882
compute_R	96406
compute_invres	64008
compute_multiple_of_R	121904
compute_multiple_of_R_pivot	579590
dbg_newrel	0
delete_FB	66262
delete_cache	64086
diagact_arch	64105
divide_p	5686773
divide_p_elt	2477
divide_p_id	185477
divide_p_quo	5498824
dump_gen	1228038
err_units	0
expand	0
expandext	31984
expbitprec	2840346
extract_full_lattice	64012
fact_ok	1228539
fact_update	2124183
factorgen	17382499
fixarch	1306947
free_GRHcheck	134435
genback	28784
get_archclean	40
get_clg2	64105
get_embs	122563
get_fs	7514057
get_log_embed	726050
get_norm_fact	1231482
get_norm_fact_primes	69
get_pr_lists	1392611
get_random_ideal	56620
get_regulator	48894
get_y	69
getfu	64007
i2print	0
idealHNF_mulred	3525
idealmulpowprime2	4761
init_GRHcheck	134434
init_famat	65812
init_red_mod_units	1107812
init_rel	64086
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237094
isprincipalfact	31984
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62490
matbotidembs	55515
matenlarge	55515
modIm	204632
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64086
nfsign_from_logarch	162324
nfsign_fu	241165
nfsign_tu	239987
nfsign_units	35
not_given	396
nthideal	64008
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123458
prec_arch	1410517
primeneeded	64008
reallocate	64086
recover_partFB	1392611
red_mod_units	1107812
rel_embed	1017414
rnd_rel	56621
rnd_rel_par	0
rnd_rel_seq	56621
set_fact	2329530
set_rel_alpha	948844
signunits	7
small_norm	66758
small_norm_par	0
small_norm_prec	64002
small_norm_seq	66758
split_ideal	1392548
step	29163683
store	9538032
subFB_change	26671
subFBgen	66263
tailres	1129446
tailresback	2258891
trim_list	123458
triv_gen	464660
try_elt	1756
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16