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 30584-b9873745ba) Lines: 2215 2530 87.5 % Date: 2025-12-22 09:21:19 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62580
Buchall_deg1	1204
Buchall_param	65218
FB_aut_perm	66260
FBgen	66259
Fincke_Pohst_bound	266612
Fincke_Pohst_ideal	266610
Fincke_Pohst_ideal_both	266609
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496420
GRHok	1530815
RgC_expbitprec	1237086
RgM_expbitprec	48790
RgV_is1	105
SPLIT	1408955
SPLIT_i	1252844
SUnits_archclean	77
Ur_ZC_mul	1392551
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392550
ZV_mul	7325
_nfnewprec	57731
act_arch	2057311
add	2250518
addRe_modIm	6906916
add_cyclotomic_units	64083
add_principal_part	32173
add_rel	2488586
add_rel_i	2973244
add_to_fact	2919903
already_known	2969100
assign_subFB	67021
automorphism_matrices	64071
automorphism_perms	64008
bad_check	96232
bad_subFB	307616
ballvol	66259
be_honest	7
bnf_build_cheapfu	285481
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785111
bnf_get_C	2819675
bnf_get_GD	276783
bnf_get_Ur	1392551
bnf_get_W	1397520
bnf_get_ga	271827
bnf_get_vbase	1392627
bnf_has_fu	285768
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	921269
can_factor	18355272
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64008
clean_cols	93075
cleanarch	3071520
cleanarchunit	133873
compute_R	96293
compute_invres	64007
compute_multiple_of_R	121755
compute_multiple_of_R_pivot	578031
dbg_newrel	0
delete_FB	66260
delete_cache	64083
diagact_arch	64104
divide_p	5624123
divide_p_elt	2391
divide_p_id	185480
divide_p_quo	5436260
dump_gen	1228031
err_units	0
expand	0
expandext	32194
expbitprec	2840324
extract_full_lattice	64015
fact_ok	1228548
fact_update	2052451
factorgen	16942694
fixarch	1306934
free_GRHcheck	134427
genback	28784
get_archclean	40
get_clg2	64104
get_embs	122446
get_fs	7512856
get_log_embed	726144
get_norm_fact	1231473
get_norm_fact_primes	69
get_pr_lists	1392607
get_random_ideal	55637
get_regulator	48885
get_y	69
getfu	64008
i2print	0
idealHNF_mulred	3538
idealmulpowprime2	4663
init_GRHcheck	134424
init_famat	65812
init_red_mod_units	1107813
init_rel	64082
inv_fact	0
isprincipal	174779
isprincipalall	1408931
isprincipalarch	1237089
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62493
matbotidembs	55535
matenlarge	55535
modIm	204617
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64083
nfsign_from_logarch	162325
nfsign_fu	241163
nfsign_tu	239983
nfsign_units	35
not_given	396
nthideal	64008
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122487
prec_arch	1410725
primeneeded	64005
reallocate	64082
recover_partFB	1392607
red_mod_units	1107813
rel_embed	1017303
rnd_rel	55636
rnd_rel_par	0
rnd_rel_seq	55637
set_fact	2315552
set_rel_alpha	948827
signunits	7
small_norm	66775
small_norm_par	0
small_norm_prec	63997
small_norm_seq	66775
split_ideal	1392544
step	28416576
store	9462233
subFB_change	26428
subFBgen	66260
tailres	1129374
tailresback	2258735
trim_list	122487
triv_gen	464660
try_elt	1685
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16