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 30674-be81ecfdd4) Lines: 2218 2538 87.4 % Date: 2026-02-09 09:23:39 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62566
Buchall_deg1	1204
Buchall_param	65203
FB_aut_perm	66266
FBgen	66266
Fincke_Pohst_bound	267604
Fincke_Pohst_ideal	267608
Fincke_Pohst_ideal_both	267608
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496408
GRHok	1530933
RgC_expbitprec	1237095
RgM_expbitprec	48796
RgV_is1	105
SPLIT	1408955
SPLIT_i	1252979
SUnits_archclean	77
Ur_ZC_mul	1392549
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392549
ZV_mul	7332
_nfnewprec	57727
act_arch	2057346
add	2250571
addRe_modIm	6906940
add_cyclotomic_units	64089
add_principal_part	31963
add_rel	2502661
add_rel_i	2987456
add_to_fact	2933798
already_known	2983325
assign_subFB	67037
automorphism_matrices	64068
automorphism_perms	64008
bad_check	96312
bad_subFB	308315
ballvol	66266
be_honest	7
bnf_build_cheapfu	285484
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785114
bnf_get_C	2819256
bnf_get_GD	276790
bnf_get_Ur	1392548
bnf_get_W	1397523
bnf_get_ga	271834
bnf_get_vbase	1392630
bnf_has_fu	285771
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841334
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65212
cache_prime_dec	921309
can_factor	18794869
chinese_unit	94
chinese_unit_slice	273
chinese_unit_worker	273
class_group_gen	64007
clean_cols	93210
cleanarch	3071520
cleanarchunit	133882
compute_R	96373
compute_invres	64008
compute_multiple_of_R	121869
compute_multiple_of_R_pivot	579129
dbg_newrel	0
delete_FB	66266
delete_cache	64088
diagact_arch	64105
divide_p	5686866
divide_p_elt	2542
divide_p_id	185479
divide_p_quo	5498846
dump_gen	1228032
err_units	0
expand	0
expandext	31984
expbitprec	2840345
extract_full_lattice	64015
fact_ok	1228536
fact_update	2124212
factorgen	17382140
fixarch	1306947
free_GRHcheck	134441
genback	28784
get_archclean	40
get_clg2	64105
get_embs	122527
get_fs	7513682
get_log_embed	726052
get_norm_fact	1231480
get_norm_fact_primes	69
get_pr_lists	1392610
get_random_ideal	56576
get_regulator	48892
get_y	69
getfu	64007
i2print	0
idealHNF_mulred	3524
idealmulpowprime2	4761
init_GRHcheck	134436
init_famat	65812
init_red_mod_units	1107813
init_rel	64089
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237095
isprincipalfact	31983
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62493
matbotidembs	55474
matenlarge	55475
modIm	204632
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64089
nfsign_from_logarch	162325
nfsign_fu	241163
nfsign_tu	239985
nfsign_units	35
not_given	396
nthideal	64007
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123421
prec_arch	1410511
primeneeded	64007
reallocate	64089
recover_partFB	1392610
red_mod_units	1107812
rel_embed	1017376
rnd_rel	56575
rnd_rel_par	0
rnd_rel_seq	56576
set_fact	2329598
set_rel_alpha	948758
signunits	7
small_norm	66764
small_norm_par	0
small_norm_prec	63996
small_norm_seq	66764
split_ideal	1392547
step	29163177
store	9538235
subFB_change	26646
subFBgen	66266
tailres	1129415
tailresback	2258834
trim_list	123421
triv_gen	464660
try_elt	1808
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16