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 30532-0c728fd268) Lines: 2215 2530 87.5 % Date: 2025-10-20 09:22:51 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Fincke_Pohst_ideal_par	0
bnfinit_FP_worker	0
bnrnewprec_shallow	0
dbg_newrel	0
err_units	0
expand	0
i2print	0
inv_fact	0
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
pack_FB	0
rnd_rel_par	0
small_norm_par	0
unpack_FB	0
wr_rel	0
be_honest	7
bnfnewprec	7
bnrnewprec	7
signunits	7
bnf_build_matalpha	20
makematal	20
nfsign_units	35
get_archclean	40
bnftestprimes	63
get_norm_fact_primes	69
get_y	69
bnf_compactfu_mat	70
myprecdbl	73
SUnits_archclean	77
chinese_unit	94
log2Mbound	94
log2fubound	94
vec_chinese_units	94
bnfnewprec_shallow	97
RgV_is1	105
ZM_remove_unused	164
chinese_unit_slice	274
chinese_unit_worker	274
not_given	396
Buchall_deg1	1204
FlxqX_chinese_unit	1379
try_elt	1682
divide_p_elt	2390
bnfinit0	2632
Vbase_to_FB	3349
pr_index	3349
idealHNF_mulred	3510
needed_bitprec	3849
idealmulpowprime2	4488
makecycgen	4956
ZV_mul	7283
pr_orbit_fill	11865
makeunits	24915
subFB_change	26444
bnf_build_cycgen	26725
genback	28776
add_principal_part	32172
expandext	32194
isprincipalfact	32194
bnf_compactfu	37422
RgM_expbitprec	48797
get_regulator	48894
bnf_build_units	50738
matbotidembs	55502
matenlarge	55502
get_random_ideal	55674
rnd_rel	55675
rnd_rel_seq	55675
_nfnewprec	57728
matbotid	62493
Buchall	62602
small_norm_prec	64020
automorphism_perms	64021
getfu	64021
class_group_gen	64022
compute_invres	64022
nthideal	64022
primeneeded	64022
extract_full_lattice	64027
automorphism_matrices	64084
add_cyclotomic_units	64097
delete_cache	64097
init_rel	64097
nfcyclotomicunits	64097
reallocate	64097
diagact_arch	64117
get_clg2	64117
buchall_end	65225
Buchall_param	65233
init_famat	65770
FBgen	66272
ballvol	66273
subFBgen	66273
FB_aut_perm	66274
delete_FB	66274
small_norm	66739
small_norm_seq	66739
assign_subFB	67031
clean_cols	93022
bad_check	96201
compute_R	96262
compute_multiple_of_R	121757
get_embs	122449
pre_allocate	122487
trim_list	122487
cleanarchunit	133895
init_GRHcheck	134685
free_GRHcheck	134686
nfsign_from_logarch	162324
isprincipal	174534
divide_p_id	185395
nf_cxlog_normalize	197126
modIm	204628
nfsign_tu	239977
nfsign_fu	241147
Fincke_Pohst_bound	266199
Fincke_Pohst_ideal	266199
Fincke_Pohst_ideal_both	266199
bnf_get_ga	271812
bnf_get_GD	276769
bnf_build_cheapfu	285479
bnf_has_fu	285766
bad_subFB	307669
triv_gen	464660
GRHchk	496404
compute_multiple_of_R_pivot	576602
get_log_embed	725500
cache_prime_dec	921244
set_rel_alpha	947814
rel_embed	1016446
init_red_mod_units	1107799
red_mod_units	1107799
tailres	1129650
dump_gen	1228025
fact_ok	1228574
get_norm_fact	1231459
isprincipalarch	1237071
RgC_expbitprec	1237072
SPLIT_i	1252512
fixarch	1306916
ZV_divrem	1392288
Ur_ZC_mul	1392289
bnf_get_Ur	1392289
split_ideal	1392289
recover_partFB	1392353
get_pr_lists	1392354
bnf_get_vbase	1392372
bnf_get_W	1397265
isprincipalall	1408672
SPLIT	1408694
prec_arch	1410482
GRHok	1532899
bnfisprincipal0	1841071
fact_update	1978831
act_arch	2057276
add	2250120
set_fact	2253726
tailresback	2259296
add_rel	2426546
bnf_get_B	2784596
bnf_get_C	2819173
expbitprec	2840310
add_to_fact	2845233
already_known	2905911
add_rel_i	2910054
cleanarch	3070722
divide_p_quo	5286657
divide_p	5474438
addRe_modIm	6905445
get_fs	7511742
store	9210213
factorgen	16808165
can_factor	18220370
step	28185399

Generated by: LCOV version 1.16