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 30586-ccf601f509) Lines: 2215 2530 87.5 % Date: 2025-12-24 09:20:59 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62568
Buchall_deg1	1204
Buchall_param	65197
FB_aut_perm	66251
FBgen	66249
Fincke_Pohst_bound	266583
Fincke_Pohst_ideal	266582
Fincke_Pohst_ideal_both	266583
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1378
GRHchk	496378
GRHok	1530868
RgC_expbitprec	1237087
RgM_expbitprec	48790
RgV_is1	105
SPLIT	1408958
SPLIT_i	1252847
SUnits_archclean	77
Ur_ZC_mul	1392550
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392549
ZV_mul	7325
_nfnewprec	57722
act_arch	2057283
add	2250513
addRe_modIm	6906864
add_cyclotomic_units	64074
add_principal_part	31963
add_rel	2488437
add_rel_i	2972978
add_to_fact	2919789
already_known	2968843
assign_subFB	67012
automorphism_matrices	64063
automorphism_perms	63999
bad_check	96199
bad_subFB	307613
ballvol	66250
be_honest	7
bnf_build_cheapfu	285477
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	1397523
bnf_get_ga	271827
bnf_get_vbase	1392630
bnf_has_fu	285765
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841335
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65205
cache_prime_dec	921180
can_factor	18355052
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64000
clean_cols	93068
cleanarch	3071484
cleanarchunit	133868
compute_R	96263
compute_invres	63999
compute_multiple_of_R	121731
compute_multiple_of_R_pivot	577465
dbg_newrel	0
delete_FB	66251
delete_cache	64074
diagact_arch	64098
divide_p	5623958
divide_p_elt	2345
divide_p_id	185479
divide_p_quo	5436140
dump_gen	1228032
err_units	0
expand	0
expandext	31983
expbitprec	2840324
extract_full_lattice	64008
fact_ok	1228548
fact_update	2052033
factorgen	16942511
fixarch	1306936
free_GRHcheck	134434
genback	28784
get_archclean	40
get_clg2	64098
get_embs	122424
get_fs	7512231
get_log_embed	726100
get_norm_fact	1231473
get_norm_fact_primes	69
get_pr_lists	1392610
get_random_ideal	55626
get_regulator	48887
get_y	69
getfu	63999
i2print	0
idealHNF_mulred	3538
idealmulpowprime2	4663
init_GRHcheck	134430
init_famat	65805
init_red_mod_units	1107812
init_rel	64072
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237086
isprincipalfact	31984
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62485
matbotidembs	55519
matenlarge	55520
modIm	204618
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64074
nfsign_from_logarch	162327
nfsign_fu	241152
nfsign_tu	239979
nfsign_units	35
not_given	396
nthideal	64001
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122463
prec_arch	1410515
primeneeded	64000
reallocate	64072
recover_partFB	1392610
red_mod_units	1107813
rel_embed	1017182
rnd_rel	55627
rnd_rel_par	0
rnd_rel_seq	55627
set_fact	2315432
set_rel_alpha	948751
signunits	7
small_norm	66764
small_norm_par	0
small_norm_prec	63993
small_norm_seq	66764
split_ideal	1392547
step	28415142
store	9461929
subFB_change	26434
subFBgen	66250
tailres	1129215
tailresback	2258421
trim_list	122463
triv_gen	464660
try_elt	1652
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16