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 30831-19b50a36d0) Lines: 2218 2538 87.4 % Date: 2026-04-20 09:27:00 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62629
Buchall_deg1	1204
Buchall_param	65266
FB_aut_perm	66304
FBgen	66303
Fincke_Pohst_bound	267588
Fincke_Pohst_ideal	267592
Fincke_Pohst_ideal_both	267591
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496714
GRHok	2303930
RgC_expbitprec	1237094
RgM_expbitprec	48845
RgV_is1	105
SPLIT	1408953
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	57790
act_arch	2057462
add	2250534
addRe_modIm	6907236
add_cyclotomic_units	64128
add_principal_part	32327
add_rel	2502521
add_rel_i	2987483
add_to_fact	2933491
already_known	2983315
assign_subFB	67054
automorphism_matrices	64120
automorphism_perms	64055
bad_check	96248
bad_subFB	308325
ballvol	66304
be_honest	7
bnf_build_cheapfu	285476
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785113
bnf_get_C	2819982
bnf_get_GD	276790
bnf_get_Ur	1392547
bnf_get_W	1397523
bnf_get_ga	271834
bnf_get_vbase	1392630
bnf_has_fu	285761
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841334
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65261
cache_prime_dec	921965
can_factor	18794744
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64057
clean_cols	93252
cleanarch	3071767
cleanarchunit	133979
compute_R	96310
compute_invres	64057
compute_multiple_of_R	121826
compute_multiple_of_R_pivot	578303
dbg_newrel	0
delete_FB	66303
delete_cache	64128
diagact_arch	64153
divide_p	5686602
divide_p_elt	2315
divide_p_id	185469
divide_p_quo	5498821
dump_gen	1228036
err_units	0
expand	0
expandext	32347
expbitprec	2840442
extract_full_lattice	64064
fact_ok	1228537
fact_update	2124667
factorgen	17382175
fixarch	1306996
free_GRHcheck	186235
genback	28784
get_archclean	40
get_clg2	64153
get_embs	122527
get_fs	7514284
get_log_embed	726170
get_norm_fact	1231479
get_norm_fact_primes	69
get_pr_lists	1392611
get_random_ideal	56573
get_regulator	48942
get_y	69
getfu	64056
i2print	0
idealHNF_mulred	3523
idealmulpowprime2	4761
init_GRHcheck	186222
init_famat	65861
init_red_mod_units	1107813
init_rel	64128
inv_fact	0
isprincipal	174779
isprincipalall	1409085
isprincipalarch	1237093
isprincipalfact	32347
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62532
matbotidembs	55437
matenlarge	55437
modIm	204727
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64128
nfsign_from_logarch	162323
nfsign_fu	241150
nfsign_tu	239978
nfsign_units	35
not_given	396
nthideal	64056
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123422
prec_arch	1410880
primeneeded	64057
reallocate	64128
recover_partFB	1392611
red_mod_units	1107813
rel_embed	1017782
rnd_rel	56573
rnd_rel_par	0
rnd_rel_seq	56573
set_fact	2329359
set_rel_alpha	949486
signunits	7
small_norm	66778
small_norm_par	0
small_norm_prec	64049
small_norm_seq	66778
split_ideal	1392547
step	29169329
store	9537328
subFB_change	26674
subFBgen	66304
tailres	1130160
tailresback	2260324
trim_list	123422
triv_gen	464660
try_elt	1642
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16