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) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 87.4 % 2541 2220 Test Date: 2026-08-13 17:02:38 Functions: 90.3 % 176 159 Legend: Lines:     hit not hit

Function Name	Hit count
Buchall	62636
Buchall_deg1	1204
Buchall_param	65282
FB_aut_perm	66310
FBgen	66310
Fincke_Pohst_bound	267315
Fincke_Pohst_ideal	267315
Fincke_Pohst_ideal_both	267315
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496776
GRHok	2305878
RgC_expbitprec	1238642
RgM_expbitprec	48853
RgV_is1	105
SPLIT	1410505
SPLIT_i	1254116
SUnits_archclean	77
Ur_ZC_mul	1394097
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1394097
ZV_mul	7332
_nfnewprec	57786
act_arch	2059042
add	2252463
addRe_modIm	6917641
add_cyclotomic_units	64133
add_principal_part	32327
add_rel	2502309
add_rel_i	2986475
add_to_fact	2933520
already_known	2982286
assign_subFB	66962
automorphism_matrices	64127
automorphism_perms	64064
bad_check	95981
bad_subFB	308071
ballvol	66310
be_honest	7
bnf_build_cheapfu	285502
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37422
bnf_compactfu_mat	70
bnf_get_B	2788214
bnf_get_C	2823085
bnf_get_GD	276790
bnf_get_Ur	1394097
bnf_get_W	1399073
bnf_get_ga	271834
bnf_get_vbase	1394180
bnf_has_fu	285789
bnfinit0	2646
bnfinit_FP_worker	0
bnfisprincipal0	1843140
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65268
cache_prime_dec	922109
can_factor	18798855
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64064
clean_cols	93211
cleanarch	3076964
cleanarchunit	133994
compute_R	96044
compute_invres	64064
compute_multiple_of_R	121592
compute_multiple_of_R_pivot	573060
dbg_newrel	0
delete_FB	66310
delete_cache	64133
diagact_arch	64161
divide_p	5686253
divide_p_elt	2280
divide_p_id	185888
divide_p_quo	5498085
dump_gen	1229586
err_units	0
expand	0
expandext	32348
expbitprec	2843552
extract_full_lattice	64071
fact_ok	1230087
fact_update	2124069
factorgen	17384668
fixarch	1308558
free_GRHcheck	186441
genback	28784
get_archclean	40
get_clg2	64161
get_embs	122196
get_fs	7518798
get_log_embed	725978
get_norm_fact	1233029
get_norm_fact_primes	69
get_pr_lists	1394160
get_random_ideal	56190
get_regulator	48950
get_y	69
getfu	64064
i2print	0
idealHNF_mulred	3523
idealmulpowprime2	4761
init_GRHcheck	186441
init_famat	65868
init_red_mod_units	1109359
init_rel	64133
inv_fact	0
isprincipal	174779
isprincipalall	1410631
isprincipalarch	1238642
isprincipalfact	32348
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62537
matbotidembs	55100
matenlarge	55100
modIm	204750
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	199199
nfcyclotomicunits	64133
nfsign_from_logarch	162330
nfsign_fu	241178
nfsign_tu	240002
nfsign_units	35
not_given	396
nthideal	64064
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123100
prec_arch	1412434
primeneeded	64064
reallocate	64133
recover_partFB	1394160
red_mod_units	1109359
rel_embed	1016906
rnd_rel	56190
rnd_rel_par	0
rnd_rel_seq	56190
set_fact	2329105
set_rel_alpha	948679
signunits	7
small_norm	66841
small_norm_par	0
small_norm_prec	64064
small_norm_seq	66841
split_ideal	1394097
step	29164673
store	9537175
subFB_change	26548
subFBgen	66310
tailres	1130325
tailresback	2260650
trim_list	123100
triv_gen	464919
try_elt	1613
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 2.0-1