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 30556-bb9f5f8fc8) Lines: 2215 2530 87.5 % Date: 2025-11-25 09:20:50 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	61562
Buchall_deg1	1162
Buchall_param	64195
FB_aut_perm	65199
FBgen	65197
Fincke_Pohst_bound	262299
Fincke_Pohst_ideal	262304
Fincke_Pohst_ideal_both	262304
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	489899
GRHok	1526404
RgC_expbitprec	1235144
RgM_expbitprec	48272
RgV_is1	105
SPLIT	1406779
SPLIT_i	1250897
SUnits_archclean	77
Ur_ZC_mul	1390374
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1390374
ZV_mul	7283
_nfnewprec	56742
act_arch	2047739
add	2242882
addRe_modIm	6890576
add_cyclotomic_units	63106
add_principal_part	32173
add_rel	2404547
add_rel_i	2880178
add_to_fact	2825616
already_known	2876192
assign_subFB	65904
automorphism_matrices	63098
automorphism_perms	63035
bad_check	94106
bad_subFB	301990
ballvol	65196
be_honest	7
bnf_build_cheapfu	284285
bnf_build_cycgen	26698
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37330
bnf_compactfu_mat	70
bnf_get_B	2780763
bnf_get_C	2815293
bnf_get_GD	275061
bnf_get_Ur	1390374
bnf_get_W	1395317
bnf_get_ga	270133
bnf_get_vbase	1390453
bnf_has_fu	284572
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1839060
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	64197
cache_prime_dec	908397
can_factor	18192424
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	63034
clean_cols	91665
cleanarch	3062780
cleanarchunit	132170
compute_R	94169
compute_invres	63035
compute_multiple_of_R	119446
compute_multiple_of_R_pivot	566036
dbg_newrel	0
delete_FB	65198
delete_cache	63106
diagact_arch	63132
divide_p	5460410
divide_p_elt	2341
divide_p_id	185076
divide_p_quo	5272999
dump_gen	1226128
err_units	0
expand	0
expandext	32194
expbitprec	2835322
extract_full_lattice	63042
fact_ok	1226649
fact_update	1975105
factorgen	16782153
fixarch	1304265
free_GRHcheck	133700
genback	28343
get_archclean	40
get_clg2	63132
get_embs	120102
get_fs	7419008
get_log_embed	718726
get_norm_fact	1229565
get_norm_fact_primes	69
get_pr_lists	1390433
get_random_ideal	53515
get_regulator	48369
get_y	69
getfu	63033
i2print	0
idealHNF_mulred	3500
idealmulpowprime2	4488
init_GRHcheck	133699
init_famat	64783
init_red_mod_units	1107554
init_rel	63106
inv_fact	0
isprincipal	174513
isprincipalall	1406754
isprincipalarch	1235149
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4928
makematal	20
makeunits	24915
matbotid	61503
matbotidembs	54160
matenlarge	54160
modIm	202278
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	63106
nfsign_from_logarch	162273
nfsign_fu	240028
nfsign_tu	238881
nfsign_units	35
not_given	396
nthideal	63035
pack_FB	0
pr_index	3349
pr_orbit_fill	11865
pre_allocate	120142
prec_arch	1408521
primeneeded	63035
reallocate	63106
recover_partFB	1390433
red_mod_units	1107554
rel_embed	1003485
rnd_rel	53515
rnd_rel_par	0
rnd_rel_seq	53515
set_fact	2234320
set_rel_alpha	935011
signunits	7
small_norm	66556
small_norm_par	0
small_norm_prec	63035
small_norm_seq	66556
split_ideal	1390370
step	28102912
store	9177727
subFB_change	25194
subFBgen	65197
tailres	1112511
tailresback	2225021
trim_list	120142
triv_gen	464562
try_elt	1610
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16