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 30574-595e4ba651) Lines: 2215 2530 87.5 % Date: 2025-12-18 09:22:54 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62607
Buchall_deg1	1204
Buchall_param	65246
FB_aut_perm	66286
FBgen	66286
Fincke_Pohst_bound	266642
Fincke_Pohst_ideal	266649
Fincke_Pohst_ideal_both	266649
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496658
GRHok	1533169
RgC_expbitprec	1237115
RgM_expbitprec	48803
RgV_is1	105
SPLIT	1408995
SPLIT_i	1252845
SUnits_archclean	77
Ur_ZC_mul	1392585
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392589
ZV_mul	7325
_nfnewprec	57741
act_arch	2057552
add	2250640
addRe_modIm	6907384
add_cyclotomic_units	64109
add_principal_part	32173
add_rel	2489522
add_rel_i	2974532
add_to_fact	2920772
already_known	2970394
assign_subFB	67049
automorphism_matrices	64097
automorphism_perms	64036
bad_check	96209
bad_subFB	307666
ballvol	66283
be_honest	7
bnf_build_cheapfu	285493
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37429
bnf_compactfu_mat	70
bnf_get_B	2785193
bnf_get_C	2819773
bnf_get_GD	276810
bnf_get_Ur	1392585
bnf_get_W	1397564
bnf_get_ga	271854
bnf_get_vbase	1392671
bnf_has_fu	285780
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841376
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65240
cache_prime_dec	921666
can_factor	18356846
chinese_unit	94
chinese_unit_slice	273
chinese_unit_worker	273
class_group_gen	64036
clean_cols	93054
cleanarch	3071816
cleanarchunit	133917
compute_R	96271
compute_invres	64036
compute_multiple_of_R	121733
compute_multiple_of_R_pivot	576978
dbg_newrel	0
delete_FB	66286
delete_cache	64109
diagact_arch	64133
divide_p	5625637
divide_p_elt	2340
divide_p_id	185520
divide_p_quo	5437777
dump_gen	1228059
err_units	0
expand	0
expandext	32194
expbitprec	2840406
extract_full_lattice	64042
fact_ok	1228572
fact_update	2052718
factorgen	16944222
fixarch	1306971
free_GRHcheck	134701
genback	28812
get_archclean	40
get_clg2	64133
get_embs	122426
get_fs	7516519
get_log_embed	726357
get_norm_fact	1231500
get_norm_fact_primes	69
get_pr_lists	1392651
get_random_ideal	55590
get_regulator	48899
get_y	69
getfu	64036
i2print	0
idealHNF_mulred	3536
idealmulpowprime2	4663
init_GRHcheck	134698
init_famat	65840
init_red_mod_units	1107841
init_rel	64109
inv_fact	0
isprincipal	174793
isprincipalall	1408973
isprincipalarch	1237113
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62506
matbotidembs	55468
matenlarge	55468
modIm	204643
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64109
nfsign_from_logarch	162322
nfsign_fu	241143
nfsign_tu	239984
nfsign_units	35
not_given	396
nthideal	64036
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122466
prec_arch	1410780
primeneeded	64036
reallocate	64109
recover_partFB	1392651
red_mod_units	1107840
rel_embed	1017595
rnd_rel	55590
rnd_rel_par	0
rnd_rel_seq	55590
set_fact	2316376
set_rel_alpha	948984
signunits	7
small_norm	66801
small_norm_par	0
small_norm_prec	64032
small_norm_seq	66801
split_ideal	1392589
step	28420215
store	9465553
subFB_change	26403
subFBgen	66284
tailres	1129953
tailresback	2259902
trim_list	122466
triv_gen	464660
try_elt	1650
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16