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 30617-dd5c93fb0e) Lines: 2218 2538 87.4 % Date: 2026-01-21 09:23:33 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62583
Buchall_deg1	1204
Buchall_param	65223
FB_aut_perm	66269
FBgen	66267
Fincke_Pohst_bound	267651
Fincke_Pohst_ideal	267650
Fincke_Pohst_ideal_both	267650
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496430
GRHok	1530893
RgC_expbitprec	1237091
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408950
SPLIT_i	1252977
SUnits_archclean	77
Ur_ZC_mul	1392546
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392547
ZV_mul	7332
_nfnewprec	57726
act_arch	2057332
add	2250561
addRe_modIm	6906924
add_cyclotomic_units	64091
add_principal_part	31963
add_rel	2502849
add_rel_i	2987676
add_to_fact	2933944
already_known	2983537
assign_subFB	67042
automorphism_matrices	64068
automorphism_perms	64008
bad_check	96334
bad_subFB	308390
ballvol	66269
be_honest	7
bnf_build_cheapfu	285477
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785110
bnf_get_C	2819248
bnf_get_GD	276790
bnf_get_Ur	1392546
bnf_get_W	1397522
bnf_get_ga	271834
bnf_get_vbase	1392629
bnf_has_fu	285764
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841333
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65211
cache_prime_dec	921305
can_factor	18794919
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64008
clean_cols	93247
cleanarch	3071536
cleanarchunit	133878
compute_R	96396
compute_invres	64007
compute_multiple_of_R	121914
compute_multiple_of_R_pivot	578385
dbg_newrel	0
delete_FB	66268
delete_cache	64092
diagact_arch	64104
divide_p	5687173
divide_p_elt	2604
divide_p_id	185479
divide_p_quo	5499093
dump_gen	1228038
err_units	0
expand	0
expandext	31983
expbitprec	2840342
extract_full_lattice	64014
fact_ok	1228539
fact_update	2124283
factorgen	17382068
fixarch	1306947
free_GRHcheck	134438
genback	28783
get_archclean	40
get_clg2	64104
get_embs	122577
get_fs	7513485
get_log_embed	726144
get_norm_fact	1231477
get_norm_fact_primes	69
get_pr_lists	1392610
get_random_ideal	56609
get_regulator	48893
get_y	69
getfu	64008
i2print	0
idealHNF_mulred	3524
idealmulpowprime2	4761
init_GRHcheck	134437
init_famat	65811
init_red_mod_units	1107812
init_rel	64092
inv_fact	0
isprincipal	174779
isprincipalall	1408719
isprincipalarch	1237094
isprincipalfact	31983
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62496
matbotidembs	55523
matenlarge	55523
modIm	204629
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64091
nfsign_from_logarch	162322
nfsign_fu	241155
nfsign_tu	239979
nfsign_units	35
not_given	396
nthideal	64007
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123470
prec_arch	1410514
primeneeded	64007
reallocate	64092
recover_partFB	1392610
red_mod_units	1107811
rel_embed	1017469
rnd_rel	56609
rnd_rel_par	0
rnd_rel_seq	56609
set_fact	2329786
set_rel_alpha	948759
signunits	7
small_norm	66779
small_norm_par	0
small_norm_prec	64006
small_norm_seq	66779
split_ideal	1392546
step	29165024
store	9538622
subFB_change	26666
subFBgen	66269
tailres	1129412
tailresback	2258820
trim_list	123470
triv_gen	464660
try_elt	1862
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16