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 30586-ccf601f509) Lines: 2215 2530 87.5 % Date: 2025-12-25 09:21:36 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62581
Buchall_deg1	1204
Buchall_param	65212
FB_aut_perm	66253
FBgen	66251
Fincke_Pohst_bound	266606
Fincke_Pohst_ideal	266607
Fincke_Pohst_ideal_both	266607
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496389
GRHok	1530878
RgC_expbitprec	1237085
RgM_expbitprec	48790
RgV_is1	105
SPLIT	1408952
SPLIT_i	1252847
SUnits_archclean	77
Ur_ZC_mul	1392548
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392544
ZV_mul	7325
_nfnewprec	57720
act_arch	2057280
add	2250490
addRe_modIm	6906879
add_cyclotomic_units	64076
add_principal_part	31961
add_rel	2488525
add_rel_i	2973140
add_to_fact	2919839
already_known	2968997
assign_subFB	67010
automorphism_matrices	64062
automorphism_perms	64001
bad_check	96216
bad_subFB	307626
ballvol	66252
be_honest	7
bnf_build_cheapfu	285483
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785107
bnf_get_C	2819253
bnf_get_GD	276782
bnf_get_Ur	1392548
bnf_get_W	1397522
bnf_get_ga	271825
bnf_get_vbase	1392628
bnf_has_fu	285768
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841334
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65205
cache_prime_dec	921209
can_factor	18355151
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64001
clean_cols	93056
cleanarch	3071486
cleanarchunit	133866
compute_R	96277
compute_invres	63999
compute_multiple_of_R	121750
compute_multiple_of_R_pivot	577498
dbg_newrel	0
delete_FB	66253
delete_cache	64076
diagact_arch	64097
divide_p	5624045
divide_p_elt	2391
divide_p_id	185476
divide_p_quo	5436181
dump_gen	1228025
err_units	0
expand	0
expandext	31984
expbitprec	2840322
extract_full_lattice	64008
fact_ok	1228541
fact_update	2052200
factorgen	16942576
fixarch	1306929
free_GRHcheck	134434
genback	28783
get_archclean	40
get_clg2	64097
get_embs	122448
get_fs	7512664
get_log_embed	726146
get_norm_fact	1231468
get_norm_fact_primes	69
get_pr_lists	1392610
get_random_ideal	55642
get_regulator	48886
get_y	69
getfu	64001
i2print	0
idealHNF_mulred	3538
idealmulpowprime2	4663
init_GRHcheck	134434
init_famat	65804
init_red_mod_units	1107812
init_rel	64076
inv_fact	0
isprincipal	174779
isprincipalall	1408720
isprincipalarch	1237085
isprincipalfact	31984
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62487
matbotidembs	55543
matenlarge	55544
modIm	204615
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64076
nfsign_from_logarch	162320
nfsign_fu	241132
nfsign_tu	239983
nfsign_units	35
not_given	396
nthideal	64001
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122489
prec_arch	1410516
primeneeded	64001
reallocate	64076
recover_partFB	1392610
red_mod_units	1107812
rel_embed	1017273
rnd_rel	55642
rnd_rel_par	0
rnd_rel_seq	55642
set_fact	2315496
set_rel_alpha	948818
signunits	7
small_norm	66770
small_norm_par	0
small_norm_prec	63997
small_norm_seq	66770
split_ideal	1392545
step	28414666
store	9462120
subFB_change	26435
subFBgen	66253
tailres	1129349
tailresback	2258690
trim_list	122488
triv_gen	464660
try_elt	1686
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16