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 30480-572da319a6) Lines: 2205 2405 91.7 % Date: 2025-08-27 09:24:05 Functions: 156 167 93.4 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62600
Buchall_deg1	1204
Buchall_param	65218
FB_aut_perm	66265
FBgen	66263
Fincke_Pohst_bound	266177
Fincke_Pohst_ideal	266174
FlxqX_chinese_unit	1379
GRHchk	496367
GRHok	1532868
RgC_expbitprec	1234944
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1406565
SPLIT_i	1250409
SUnits_archclean	77
Ur_ZC_mul	1390163
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1390164
ZV_mul	7283
_nfnewprec	57726
act_arch	2055125
add	2247957
addRe_modIm	6901098
add_cyclotomic_units	64088
add_principal_part	32173
add_rel	2426436
add_rel_i	2909845
add_to_fact	2845228
already_known	2905710
assign_subFB	67032
automorphism_matrices	64077
automorphism_perms	64015
bad_check	96177
bad_subFB	307580
ballvol	66264
be_honest	7
bnf_build_cheapfu	285482
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50731
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2780341
bnf_get_C	2814915
bnf_get_GD	276769
bnf_get_Ur	1390163
bnf_get_W	1395136
bnf_get_ga	271813
bnf_get_vbase	1390243
bnf_has_fu	285762
bnfinit0	2625
bnfisprincipal0	1838870
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65219
cache_prime_dec	921173
can_factor	18216736
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64013
clean_cols	93032
cleanarch	3066366
cleanarchunit	133885
compute_R	96238
compute_invres	64015
compute_multiple_of_R	121719
compute_multiple_of_R_pivot	576158
dbg_newrel	0
delete_FB	66265
delete_cache	64088
diagact_arch	64112
divide_p	5474316
divide_p_elt	2340
divide_p_id	185365
divide_p_quo	5286620
dump_gen	1225897
err_units	0
expand	0
expandext	32193
expbitprec	2838182
extract_full_lattice	64022
fact_ok	1226445
fact_update	1978677
factorgen	16806626
fixarch	1304801
free_GRHcheck	134679
genback	28777
get_archclean	40
get_clg2	64112
get_embs	122409
get_fs	7512206
get_log_embed	725452
get_norm_fact	1229333
get_norm_fact_primes	69
get_pr_lists	1390224
get_random_ideal	55640
get_regulator	48894
get_y	69
getfu	64015
i2print	0
idealHNF_mulred	3505
idealmulpowprime2	4488
init_GRHcheck	134676
init_famat	65763
init_red_mod_units	1107799
init_rel	64087
inv_fact	0
isprincipal	174534
isprincipalall	1406544
isprincipalarch	1234944
isprincipalfact	32193
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24908
matbotid	62492
matbotidembs	55485
matenlarge	55485
modIm	204631
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	194924
nfcyclotomicunits	64088
nfsign_from_logarch	162325
nfsign_fu	241162
nfsign_tu	239986
nfsign_units	35
not_given	396
nthideal	64015
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122449
prec_arch	1408353
primeneeded	64014
reallocate	64087
recover_partFB	1390223
red_mod_units	1107797
rel_embed	1016334
rnd_rel	55640
set_fact	2253662
set_rel_alpha	947801
signunits	7
small_norm	66735
small_norm_prec	64012
split_ideal	1390160
step	28185164
store	9209997
subFB_change	26390
subFBgen	66264
tailres	1129549
tailresback	2259092
trim_list	122449
triv_gen	464583
try_elt	1649
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16