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 30673-b6380924e9) Lines: 2218 2538 87.4 % Date: 2026-02-08 09:23:25 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62559
Buchall_deg1	1204
Buchall_param	65201
FB_aut_perm	66265
FBgen	66263
Fincke_Pohst_bound	267653
Fincke_Pohst_ideal	267652
Fincke_Pohst_ideal_both	267653
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496427
GRHok	1530892
RgC_expbitprec	1237092
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408956
SPLIT_i	1252980
SUnits_archclean	77
Ur_ZC_mul	1392550
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392550
ZV_mul	7332
_nfnewprec	57727
act_arch	2057331
add	2250552
addRe_modIm	6906929
add_cyclotomic_units	64088
add_principal_part	31963
add_rel	2502713
add_rel_i	2987636
add_to_fact	2933869
already_known	2983497
assign_subFB	67039
automorphism_matrices	64069
automorphism_perms	64008
bad_check	96350
bad_subFB	308359
ballvol	66263
be_honest	7
bnf_build_cheapfu	285485
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50744
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785114
bnf_get_C	2819257
bnf_get_GD	276789
bnf_get_Ur	1392550
bnf_get_W	1397525
bnf_get_ga	271833
bnf_get_vbase	1392632
bnf_has_fu	285772
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841332
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65212
cache_prime_dec	921315
can_factor	18794436
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64008
clean_cols	93257
cleanarch	3071521
cleanarchunit	133880
compute_R	96414
compute_invres	64008
compute_multiple_of_R	121920
compute_multiple_of_R_pivot	580181
dbg_newrel	0
delete_FB	66265
delete_cache	64088
diagact_arch	64104
divide_p	5686901
divide_p_elt	2519
divide_p_id	185477
divide_p_quo	5498908
dump_gen	1228039
err_units	0
expand	0
expandext	31984
expbitprec	2840342
extract_full_lattice	64014
fact_ok	1228538
fact_update	2124156
factorgen	17381707
fixarch	1306949
free_GRHcheck	134441
genback	28784
get_archclean	40
get_clg2	64104
get_embs	122583
get_fs	7513692
get_log_embed	726096
get_norm_fact	1231482
get_norm_fact_primes	69
get_pr_lists	1392612
get_random_ideal	56633
get_regulator	48893
get_y	69
getfu	64008
i2print	0
idealHNF_mulred	3522
idealmulpowprime2	4761
init_GRHcheck	134438
init_famat	65812
init_red_mod_units	1107813
init_rel	64088
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237094
isprincipalfact	31983
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24921
matbotid	62492
matbotidembs	55532
matenlarge	55532
modIm	204633
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64088
nfsign_from_logarch	162320
nfsign_fu	241154
nfsign_tu	239989
nfsign_units	35
not_given	396
nthideal	64008
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123477
prec_arch	1410517
primeneeded	64008
reallocate	64088
recover_partFB	1392612
red_mod_units	1107813
rel_embed	1017540
rnd_rel	56633
rnd_rel_par	0
rnd_rel_seq	56633
set_fact	2329650
set_rel_alpha	948930
signunits	7
small_norm	66764
small_norm_par	0
small_norm_prec	64002
small_norm_seq	66764
split_ideal	1392549
step	29163252
store	9538318
subFB_change	26690
subFBgen	66264
tailres	1129420
tailresback	2258835
trim_list	123477
triv_gen	464660
try_elt	1792
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16