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 30571-c0dfe82732) Lines: 2215 2530 87.5 % Date: 2025-12-06 09:22:10 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62603
Buchall_deg1	1204
Buchall_param	65242
FB_aut_perm	66283
FBgen	66280
Fincke_Pohst_bound	266670
Fincke_Pohst_ideal	266674
Fincke_Pohst_ideal_both	266674
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496657
GRHok	1533174
RgC_expbitprec	1237109
RgM_expbitprec	48804
RgV_is1	105
SPLIT	1408995
SPLIT_i	1252845
SUnits_archclean	77
Ur_ZC_mul	1392589
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392591
ZV_mul	7325
_nfnewprec	57740
act_arch	2057552
add	2250647
addRe_modIm	6907347
add_cyclotomic_units	64107
add_principal_part	32173
add_rel	2489457
add_rel_i	2974436
add_to_fact	2920772
already_known	2970303
assign_subFB	67039
automorphism_matrices	64099
automorphism_perms	64036
bad_check	96253
bad_subFB	307652
ballvol	66282
be_honest	7
bnf_build_cheapfu	285485
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37429
bnf_compactfu_mat	70
bnf_get_B	2785198
bnf_get_C	2819770
bnf_get_GD	276811
bnf_get_Ur	1392589
bnf_get_W	1397564
bnf_get_ga	271855
bnf_get_vbase	1392671
bnf_has_fu	285772
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841375
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65240
cache_prime_dec	921661
can_factor	18357033
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64035
clean_cols	93063
cleanarch	3071815
cleanarchunit	133914
compute_R	96313
compute_invres	64035
compute_multiple_of_R	121762
compute_multiple_of_R_pivot	576718
dbg_newrel	0
delete_FB	66284
delete_cache	64107
diagact_arch	64131
divide_p	5625617
divide_p_elt	2302
divide_p_id	185521
divide_p_quo	5437796
dump_gen	1228059
err_units	0
expand	0
expandext	32194
expbitprec	2840403
extract_full_lattice	64042
fact_ok	1228571
fact_update	2052745
factorgen	16944476
fixarch	1306972
free_GRHcheck	134701
genback	28812
get_archclean	40
get_clg2	64131
get_embs	122447
get_fs	7516448
get_log_embed	726348
get_norm_fact	1231503
get_norm_fact_primes	69
get_pr_lists	1392650
get_random_ideal	55618
get_regulator	48900
get_y	69
getfu	64035
i2print	0
idealHNF_mulred	3536
idealmulpowprime2	4663
init_GRHcheck	134699
init_famat	65839
init_red_mod_units	1107841
init_rel	64106
inv_fact	0
isprincipal	174793
isprincipalall	1408971
isprincipalarch	1237111
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62503
matbotidembs	55491
matenlarge	55491
modIm	204642
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64107
nfsign_from_logarch	162326
nfsign_fu	241154
nfsign_tu	239973
nfsign_units	35
not_given	396
nthideal	64035
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122488
prec_arch	1410780
primeneeded	64036
reallocate	64106
recover_partFB	1392650
red_mod_units	1107840
rel_embed	1017550
rnd_rel	55618
rnd_rel_par	0
rnd_rel_seq	55618
set_fact	2316343
set_rel_alpha	949015
signunits	7
small_norm	66799
small_norm_par	0
small_norm_prec	64031
small_norm_seq	66799
split_ideal	1392588
step	28420407
store	9465391
subFB_change	26407
subFBgen	66283
tailres	1129943
tailresback	2259881
trim_list	122488
triv_gen	464659
try_elt	1616
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16