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 30678-a23e500d22) Lines: 2218 2538 87.4 % Date: 2026-02-15 09:22:35 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62565
Buchall_deg1	1204
Buchall_param	65206
FB_aut_perm	66266
FBgen	66265
Fincke_Pohst_bound	267675
Fincke_Pohst_ideal	267678
Fincke_Pohst_ideal_both	267678
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496432
GRHok	1530893
RgC_expbitprec	1237092
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408957
SPLIT_i	1252978
SUnits_archclean	77
Ur_ZC_mul	1392549
Vbase_to_FB	3426
ZM_remove_unused	164
ZV_divrem	1392551
ZV_mul	7332
_nfnewprec	57726
act_arch	2057345
add	2250585
addRe_modIm	6906939
add_cyclotomic_units	64089
add_principal_part	31962
add_rel	2502779
add_rel_i	2987671
add_to_fact	2933912
already_known	2983529
assign_subFB	67037
automorphism_matrices	64071
automorphism_perms	64006
bad_check	96356
bad_subFB	308359
ballvol	66264
be_honest	7
bnf_build_cheapfu	285485
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50745
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785110
bnf_get_C	2819252
bnf_get_GD	276790
bnf_get_Ur	1392549
bnf_get_W	1397522
bnf_get_ga	271834
bnf_get_vbase	1392629
bnf_has_fu	285772
bnfinit0	2639
bnfinit_FP_worker	0
bnfisprincipal0	1841332
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65212
cache_prime_dec	921315
can_factor	18795235
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64008
clean_cols	93281
cleanarch	3071526
cleanarchunit	133882
compute_R	96418
compute_invres	64008
compute_multiple_of_R	121931
compute_multiple_of_R_pivot	579794
dbg_newrel	0
delete_FB	66265
delete_cache	64089
diagact_arch	64104
divide_p	5686988
divide_p_elt	2547
divide_p_id	185480
divide_p_quo	5498962
dump_gen	1228039
err_units	0
expand	0
expandext	31983
expbitprec	2840343
extract_full_lattice	64015
fact_ok	1228541
fact_update	2124298
factorgen	17382441
fixarch	1306941
free_GRHcheck	134441
genback	28784
get_archclean	40
get_clg2	64104
get_embs	122598
get_fs	7513479
get_log_embed	726130
get_norm_fact	1231483
get_norm_fact_primes	69
get_pr_lists	1392610
get_random_ideal	56636
get_regulator	48893
get_y	69
getfu	64008
i2print	0
idealHNF_mulred	3526
idealmulpowprime2	4761
init_GRHcheck	134440
init_famat	65812
init_red_mod_units	1107813
init_rel	64088
inv_fact	0
isprincipal	174779
isprincipalall	1408721
isprincipalarch	1237093
isprincipalfact	31983
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24922
matbotid	62493
matbotidembs	55545
matenlarge	55546
modIm	204630
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64089
nfsign_from_logarch	162324
nfsign_fu	241156
nfsign_tu	239989
nfsign_units	35
not_given	396
nthideal	64007
pack_FB	0
pr_index	3426
pr_orbit_fill	11865
pre_allocate	123492
prec_arch	1410516
primeneeded	64008
reallocate	64088
recover_partFB	1392610
red_mod_units	1107813
rel_embed	1017552
rnd_rel	56640
rnd_rel_par	0
rnd_rel_seq	56640
set_fact	2329716
set_rel_alpha	948879
signunits	7
small_norm	66770
small_norm_par	0
small_norm_prec	63998
small_norm_seq	66770
split_ideal	1392546
step	29163968
store	9538442
subFB_change	26672
subFBgen	66265
tailres	1129455
tailresback	2258907
trim_list	123492
triv_gen	464660
try_elt	1810
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16