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 30610-dfc8ed42cd) Lines: 2218 2538 87.4 % Date: 2026-01-14 09:22:13 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62577
Buchall_deg1	1204
Buchall_param	65217
FB_aut_perm	66265
FBgen	66262
Fincke_Pohst_bound	267624
Fincke_Pohst_ideal	267628
Fincke_Pohst_ideal_both	267628
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496426
GRHok	1530843
RgC_expbitprec	1237091
RgM_expbitprec	48796
RgV_is1	105
SPLIT	1408955
SPLIT_i	1252980
SUnits_archclean	77
Ur_ZC_mul	1392544
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392547
ZV_mul	7332
_nfnewprec	57729
act_arch	2057339
add	2250573
addRe_modIm	6906922
add_cyclotomic_units	64088
add_principal_part	31963
add_rel	2502601
add_rel_i	2987366
add_to_fact	2933762
already_known	2983234
assign_subFB	67034
automorphism_matrices	64068
automorphism_perms	64007
bad_check	96309
bad_subFB	308320
ballvol	66264
be_honest	7
bnf_build_cheapfu	285473
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785113
bnf_get_C	2819254
bnf_get_GD	276790
bnf_get_Ur	1392544
bnf_get_W	1397521
bnf_get_ga	271834
bnf_get_vbase	1392628
bnf_has_fu	285760
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841333
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65212
cache_prime_dec	921306
can_factor	18794807
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64008
clean_cols	93258
cleanarch	3071522
cleanarchunit	133880
compute_R	96374
compute_invres	64008
compute_multiple_of_R	121880
compute_multiple_of_R_pivot	578652
dbg_newrel	0
delete_FB	66265
delete_cache	64088
diagact_arch	64104
divide_p	5686758
divide_p_elt	2524
divide_p_id	185479
divide_p_quo	5498762
dump_gen	1228037
err_units	0
expand	0
expandext	31983
expbitprec	2840341
extract_full_lattice	64014
fact_ok	1228537
fact_update	2124245
factorgen	17382065
fixarch	1306945
free_GRHcheck	134435
genback	28783
get_archclean	40
get_clg2	64104
get_embs	122544
get_fs	7513022
get_log_embed	726060
get_norm_fact	1231480
get_norm_fact_primes	69
get_pr_lists	1392608
get_random_ideal	56593
get_regulator	48893
get_y	69
getfu	64006
i2print	0
idealHNF_mulred	3523
idealmulpowprime2	4761
init_GRHcheck	134435
init_famat	65812
init_red_mod_units	1107811
init_rel	64088
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237094
isprincipalfact	31984
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62492
matbotidembs	55494
matenlarge	55494
modIm	204632
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64088
nfsign_from_logarch	162324
nfsign_fu	241154
nfsign_tu	239978
nfsign_units	35
not_given	396
nthideal	64008
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123439
prec_arch	1410514
primeneeded	64007
reallocate	64088
recover_partFB	1392608
red_mod_units	1107812
rel_embed	1017363
rnd_rel	56592
rnd_rel_par	0
rnd_rel_seq	56593
set_fact	2329546
set_rel_alpha	948717
signunits	7
small_norm	66766
small_norm_par	0
small_norm_prec	64001
small_norm_seq	66766
split_ideal	1392545
step	29162997
store	9538093
subFB_change	26654
subFBgen	66264
tailres	1129439
tailresback	2258880
trim_list	123439
triv_gen	464660
try_elt	1789
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16