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 30592-30cd175d91) Lines: 2213 2528 87.5 % Date: 2026-01-03 09:20:22 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62573
Buchall_deg1	1204
Buchall_param	65192
FB_aut_perm	66269
FBgen	66268
Fincke_Pohst_bound	266726
Fincke_Pohst_ideal	266725
Fincke_Pohst_ideal_both	266725
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496426
GRHok	1530904
RgC_expbitprec	1237089
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408954
SPLIT_i	1252847
SUnits_archclean	77
Ur_ZC_mul	1392550
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392551
ZV_mul	7325
_nfnewprec	57720
act_arch	2057301
add	2250504
addRe_modIm	6906935
add_cyclotomic_units	64092
add_principal_part	31963
add_rel	2489248
add_rel_i	2974058
add_to_fact	2920405
already_known	2969909
assign_subFB	67027
automorphism_matrices	64068
automorphism_perms	64008
bad_check	96346
bad_subFB	307759
ballvol	66269
be_honest	7
bnf_build_cheapfu	285479
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785113
bnf_get_C	2819255
bnf_get_GD	276783
bnf_get_Ur	1392550
bnf_get_W	1397522
bnf_get_ga	271827
bnf_get_vbase	1392629
bnf_has_fu	285766
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841333
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65209
cache_prime_dec	921311
can_factor	18356135
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64008
clean_cols	93208
cleanarch	3071530
cleanarchunit	133879
compute_R	96409
compute_invres	64007
compute_multiple_of_R	121869
compute_multiple_of_R_pivot	578864
dbg_newrel	0
delete_FB	66268
delete_cache	64092
diagact_arch	64104
divide_p	5624419
divide_p_elt	2604
divide_p_id	185479
divide_p_quo	5436338
dump_gen	1228029
err_units	0
expand	0
expandext	31983
expbitprec	2840341
extract_full_lattice	64015
fact_ok	1228545
fact_update	2052179
factorgen	16943429
fixarch	1306944
free_GRHcheck	134441
genback	28784
get_archclean	40
get_clg2	64104
get_embs	122559
get_fs	7511879
get_log_embed	726432
get_norm_fact	1231476
get_norm_fact_primes	69
get_pr_lists	1392610
get_random_ideal	55736
get_regulator	48892
get_y	69
getfu	64007
i2print	0
idealHNF_mulred	3538
idealmulpowprime2	4663
init_GRHcheck	134438
init_famat	65811
init_red_mod_units	1107812
init_rel	64090
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237087
isprincipalfact	31984
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62489
matbotidembs	55526
matenlarge	55525
modIm	204631
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64092
nfsign_from_logarch	162322
nfsign_fu	241157
nfsign_tu	239983
nfsign_units	35
not_given	396
nthideal	64008
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122599
prec_arch	1410516
primeneeded	64007
reallocate	64090
recover_partFB	1392610
red_mod_units	1107813
rel_embed	1017738
rnd_rel	55736
rnd_rel_par	0
rnd_rel_seq	55736
set_fact	2316193
set_rel_alpha	948642
signunits	7
small_norm	66778
small_norm_par	0
small_norm_prec	63999
small_norm_seq	66778
split_ideal	1392546
step	28418207
store	9463137
subFB_change	26536
subFBgen	66269
tailres	1129426
tailresback	2258846
trim_list	122599
triv_gen	464660
try_elt	1860
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16