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 30590-f14e077362) Lines: 2213 2528 87.5 % Date: 2025-12-31 09:21:49 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62569
Buchall_deg1	1204
Buchall_param	65201
FB_aut_perm	66251
FBgen	66251
Fincke_Pohst_bound	266545
Fincke_Pohst_ideal	266547
Fincke_Pohst_ideal_both	266546
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496394
GRHok	1530886
RgC_expbitprec	1237082
RgM_expbitprec	48789
RgV_is1	105
SPLIT	1408957
SPLIT_i	1252847
SUnits_archclean	77
Ur_ZC_mul	1392548
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392548
ZV_mul	7325
_nfnewprec	57721
act_arch	2057284
add	2250504
addRe_modIm	6906872
add_cyclotomic_units	64074
add_principal_part	31963
add_rel	2488420
add_rel_i	2972900
add_to_fact	2919749
already_known	2968762
assign_subFB	67005
automorphism_matrices	64063
automorphism_perms	64001
bad_check	96178
bad_subFB	307536
ballvol	66250
be_honest	7
bnf_build_cheapfu	285482
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37414
bnf_compactfu_mat	70
bnf_get_B	2785111
bnf_get_C	2819258
bnf_get_GD	276782
bnf_get_Ur	1392549
bnf_get_W	1397521
bnf_get_ga	271826
bnf_get_vbase	1392628
bnf_has_fu	285769
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841334
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65205
cache_prime_dec	921215
can_factor	18355368
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64000
clean_cols	93039
cleanarch	3071477
cleanarchunit	133865
compute_R	96240
compute_invres	64000
compute_multiple_of_R	121694
compute_multiple_of_R_pivot	576936
dbg_newrel	0
delete_FB	66251
delete_cache	64074
diagact_arch	64098
divide_p	5623918
divide_p_elt	2349
divide_p_id	185479
divide_p_quo	5436093
dump_gen	1228033
err_units	0
expand	0
expandext	31984
expbitprec	2840317
extract_full_lattice	64007
fact_ok	1228547
fact_update	2052106
factorgen	16942832
fixarch	1306927
free_GRHcheck	134434
genback	28784
get_archclean	40
get_clg2	64098
get_embs	122387
get_fs	7513037
get_log_embed	726056
get_norm_fact	1231473
get_norm_fact_primes	69
get_pr_lists	1392609
get_random_ideal	55588
get_regulator	48887
get_y	69
getfu	63999
i2print	0
idealHNF_mulred	3537
idealmulpowprime2	4663
init_GRHcheck	134432
init_famat	65805
init_red_mod_units	1107812
init_rel	64074
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237085
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	55484
matenlarge	55484
modIm	204620
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64074
nfsign_from_logarch	162326
nfsign_fu	241155
nfsign_tu	239988
nfsign_units	35
not_given	396
nthideal	64001
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122426
prec_arch	1410517
primeneeded	64001
reallocate	64074
recover_partFB	1392609
red_mod_units	1107812
rel_embed	1017073
rnd_rel	55588
rnd_rel_par	0
rnd_rel_seq	55588
set_fact	2315375
set_rel_alpha	948648
signunits	7
small_norm	66766
small_norm_par	0
small_norm_prec	63996
small_norm_seq	66766
split_ideal	1392545
step	28416379
store	9461839
subFB_change	26392
subFBgen	66251
tailres	1129316
tailresback	2258624
trim_list	122426
triv_gen	464660
try_elt	1649
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16