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 30543-4febeb1110) Lines: 2215 2530 87.5 % Date: 2025-11-10 09:22:37 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62601
Buchall_deg1	1204
Buchall_param	65234
FB_aut_perm	66271
FBgen	66270
Fincke_Pohst_bound	266191
Fincke_Pohst_ideal	266192
Fincke_Pohst_ideal_both	266192
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496407
GRHok	1532915
RgC_expbitprec	1237072
RgM_expbitprec	48796
RgV_is1	105
SPLIT	1408692
SPLIT_i	1252509
SUnits_archclean	77
Ur_ZC_mul	1392291
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1392290
ZV_mul	7283
_nfnewprec	57729
act_arch	2057285
add	2250133
addRe_modIm	6905389
add_cyclotomic_units	64094
add_principal_part	32173
add_rel	2426445
add_rel_i	2909917
add_to_fact	2845191
already_known	2905785
assign_subFB	67035
automorphism_matrices	64084
automorphism_perms	64022
bad_check	96240
bad_subFB	307653
ballvol	66270
be_honest	7
bnf_build_cheapfu	285476
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37422
bnf_compactfu_mat	70
bnf_get_B	2784593
bnf_get_C	2819169
bnf_get_GD	276769
bnf_get_Ur	1392291
bnf_get_W	1397261
bnf_get_ga	271813
bnf_get_vbase	1392368
bnf_has_fu	285762
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841074
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65224
cache_prime_dec	921266
can_factor	18220328
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64022
clean_cols	93010
cleanarch	3070713
cleanarchunit	133895
compute_R	96302
compute_invres	64021
compute_multiple_of_R	121753
compute_multiple_of_R_pivot	577201
dbg_newrel	0
delete_FB	66268
delete_cache	64094
diagact_arch	64119
divide_p	5474278
divide_p_elt	2324
divide_p_id	185395
divide_p_quo	5286561
dump_gen	1228025
err_units	0
expand	0
expandext	32194
expbitprec	2840310
extract_full_lattice	64028
fact_ok	1228572
fact_update	1978733
factorgen	16808167
fixarch	1306926
free_GRHcheck	134686
genback	28777
get_archclean	40
get_clg2	64118
get_embs	122439
get_fs	7512284
get_log_embed	725455
get_norm_fact	1231459
get_norm_fact_primes	69
get_pr_lists	1392349
get_random_ideal	55675
get_regulator	48894
get_y	69
getfu	64019
i2print	0
idealHNF_mulred	3510
idealmulpowprime2	4488
init_GRHcheck	134686
init_famat	65770
init_red_mod_units	1107799
init_rel	64094
inv_fact	0
isprincipal	174534
isprincipalall	1408669
isprincipalarch	1237071
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62491
matbotidembs	55495
matenlarge	55495
modIm	204633
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	64094
nfsign_from_logarch	162322
nfsign_fu	241145
nfsign_tu	239985
nfsign_units	35
not_given	396
nthideal	64022
pack_FB	0
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122479
prec_arch	1410482
primeneeded	64022
reallocate	64094
recover_partFB	1392349
red_mod_units	1107799
rel_embed	1016412
rnd_rel	55675
rnd_rel_par	0
rnd_rel_seq	55675
set_fact	2253653
set_rel_alpha	947871
signunits	7
small_norm	66732
small_norm_par	0
small_norm_prec	64017
small_norm_seq	66732
split_ideal	1392285
step	28184873
store	9209912
subFB_change	26441
subFBgen	66270
tailres	1129688
tailresback	2259375
trim_list	122479
triv_gen	464660
try_elt	1634
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16