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 30462-6c568f4018) Lines: 2205 2405 91.7 % Date: 2025-08-10 09:24:05 Functions: 156 167 93.4 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62598
Buchall_deg1	1204
Buchall_param	65223
FB_aut_perm	66267
FBgen	66265
Fincke_Pohst_bound	266182
Fincke_Pohst_ideal	266187
FlxqX_chinese_unit	1379
GRHchk	496365
GRHok	1532870
RgC_expbitprec	1234945
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1406567
SPLIT_i	1250411
SUnits_archclean	77
Ur_ZC_mul	1390162
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1390162
ZV_mul	7283
_nfnewprec	57730
act_arch	2055133
add	2247973
addRe_modIm	6901118
add_cyclotomic_units	64089
add_principal_part	32173
add_rel	2426528
add_rel_i	2910068
add_to_fact	2845284
already_known	2905933
assign_subFB	67034
automorphism_matrices	64078
automorphism_perms	64015
bad_check	96226
bad_subFB	307608
ballvol	66267
be_honest	7
bnf_build_cheapfu	285471
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50730
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2780338
bnf_get_C	2814916
bnf_get_GD	276769
bnf_get_Ur	1390162
bnf_get_W	1395136
bnf_get_ga	271813
bnf_get_vbase	1390243
bnf_has_fu	285750
bnfinit0	2625
bnfisprincipal0	1838866
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65219
cache_prime_dec	921176
can_factor	18216337
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64015
clean_cols	93047
cleanarch	3066372
cleanarchunit	133887
compute_R	96288
compute_invres	64015
compute_multiple_of_R	121748
compute_multiple_of_R_pivot	577540
dbg_newrel	0
delete_FB	66267
delete_cache	64090
diagact_arch	64112
divide_p	5474461
divide_p_elt	2385
divide_p_id	185366
divide_p_quo	5286713
dump_gen	1225897
err_units	0
expand	0
expandext	32194
expbitprec	2838180
extract_full_lattice	64021
fact_ok	1226447
fact_update	1978715
factorgen	16806253
fixarch	1304797
free_GRHcheck	134680
genback	28777
get_archclean	40
get_clg2	64112
get_embs	122425
get_fs	7512050
get_log_embed	725483
get_norm_fact	1229334
get_norm_fact_primes	69
get_pr_lists	1390225
get_random_ideal	55644
get_regulator	48894
get_y	69
getfu	64015
i2print	0
idealHNF_mulred	3507
idealmulpowprime2	4488
init_GRHcheck	134679
init_famat	65762
init_red_mod_units	1107798
init_rel	64090
inv_fact	0
isprincipal	174534
isprincipalall	1406544
isprincipalarch	1234942
isprincipalfact	32193
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24907
matbotid	62494
matbotidembs	55500
matenlarge	55500
modIm	204625
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	194924
nfcyclotomicunits	64089
nfsign_from_logarch	162321
nfsign_fu	241149
nfsign_tu	239974
nfsign_units	35
not_given	396
nthideal	64015
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122464
prec_arch	1408353
primeneeded	64015
reallocate	64090
recover_partFB	1390225
red_mod_units	1107799
rel_embed	1016463
rnd_rel	55645
set_fact	2253747
set_rel_alpha	947868
signunits	7
small_norm	66745
small_norm_prec	64014
split_ideal	1390160
step	28185308
store	9210204
subFB_change	26410
subFBgen	66267
tailres	1129519
tailresback	2259022
trim_list	122464
triv_gen	464583
try_elt	1684
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16