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 30848-b1463d63da) Lines: 2218 2538 87.4 % Date: 2026-04-30 09:27:33 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62625
Buchall_deg1	1204
Buchall_param	65264
FB_aut_perm	66308
FBgen	66306
Fincke_Pohst_bound	267544
Fincke_Pohst_ideal	267542
Fincke_Pohst_ideal_both	267542
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496717
GRHok	2303876
RgC_expbitprec	1237092
RgM_expbitprec	48846
RgV_is1	105
SPLIT	1408956
SPLIT_i	1252981
SUnits_archclean	77
Ur_ZC_mul	1392549
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392550
ZV_mul	7332
_nfnewprec	57790
act_arch	2057471
add	2250550
addRe_modIm	6907264
add_cyclotomic_units	64131
add_principal_part	32327
add_rel	2502655
add_rel_i	2987618
add_to_fact	2933588
already_known	2983431
assign_subFB	67035
automorphism_matrices	64120
automorphism_perms	64057
bad_check	96202
bad_subFB	308237
ballvol	66308
be_honest	7
bnf_build_cheapfu	285474
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37414
bnf_compactfu_mat	70
bnf_get_B	2785117
bnf_get_C	2819985
bnf_get_GD	276790
bnf_get_Ur	1392549
bnf_get_W	1397524
bnf_get_ga	271834
bnf_get_vbase	1392631
bnf_has_fu	285762
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841333
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65261
cache_prime_dec	921970
can_factor	18794823
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64057
clean_cols	93274
cleanarch	3071780
cleanarchunit	133976
compute_R	96265
compute_invres	64056
compute_multiple_of_R	121789
compute_multiple_of_R_pivot	578415
dbg_newrel	0
delete_FB	66308
delete_cache	64131
diagact_arch	64154
divide_p	5686707
divide_p_elt	2371
divide_p_id	185469
divide_p_quo	5498872
dump_gen	1228037
err_units	0
expand	0
expandext	32347
expbitprec	2840440
extract_full_lattice	64063
fact_ok	1228540
fact_update	2124754
factorgen	17382161
fixarch	1306995
free_GRHcheck	186226
genback	28784
get_archclean	40
get_clg2	64154
get_embs	122481
get_fs	7515556
get_log_embed	726159
get_norm_fact	1231482
get_norm_fact_primes	69
get_pr_lists	1392611
get_random_ideal	56511
get_regulator	48943
get_y	69
getfu	64056
i2print	0
idealHNF_mulred	3525
idealmulpowprime2	4761
init_GRHcheck	186220
init_famat	65861
init_red_mod_units	1107811
init_rel	64130
inv_fact	0
isprincipal	174779
isprincipalall	1409084
isprincipalarch	1237095
isprincipalfact	32348
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62534
matbotidembs	55386
matenlarge	55388
modIm	204727
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64131
nfsign_from_logarch	162325
nfsign_fu	241152
nfsign_tu	239970
nfsign_units	35
not_given	396
nthideal	64057
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123374
prec_arch	1410881
primeneeded	64057
reallocate	64130
recover_partFB	1392611
red_mod_units	1107813
rel_embed	1017722
rnd_rel	56511
rnd_rel_par	0
rnd_rel_seq	56511
set_fact	2329463
set_rel_alpha	949344
signunits	7
small_norm	66790
small_norm_par	0
small_norm_prec	64042
small_norm_seq	66790
split_ideal	1392548
step	29168454
store	9537620
subFB_change	26635
subFBgen	66308
tailres	1130161
tailresback	2260312
trim_list	123373
triv_gen	464660
try_elt	1693
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16