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 30483-b6b1f87815) Lines: 2205 2405 91.7 % Date: 2025-09-12 09:24:16 Functions: 156 167 93.4 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62600
Buchall_deg1	1204
Buchall_param	65225
FB_aut_perm	66266
FBgen	66263
Fincke_Pohst_bound	266129
Fincke_Pohst_ideal	266131
FlxqX_chinese_unit	1378
GRHchk	496363
GRHok	1532890
RgC_expbitprec	1234945
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1406565
SPLIT_i	1250405
SUnits_archclean	77
Ur_ZC_mul	1390162
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1390162
ZV_mul	7283
_nfnewprec	57727
act_arch	2055139
add	2247983
addRe_modIm	6901101
add_cyclotomic_units	64089
add_principal_part	32173
add_rel	2426321
add_rel_i	2909768
add_to_fact	2845071
already_known	2905636
assign_subFB	67030
automorphism_matrices	64077
automorphism_perms	64015
bad_check	96169
bad_subFB	307572
ballvol	66265
be_honest	7
bnf_build_cheapfu	285463
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50731
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2780331
bnf_get_C	2814911
bnf_get_GD	276768
bnf_get_Ur	1390162
bnf_get_W	1395127
bnf_get_ga	271813
bnf_get_vbase	1390235
bnf_has_fu	285765
bnfinit0	2625
bnfisprincipal0	1838868
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65218
cache_prime_dec	921182
can_factor	18216053
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64015
clean_cols	93025
cleanarch	3066362
cleanarchunit	133888
compute_R	96231
compute_invres	64014
compute_multiple_of_R	121698
compute_multiple_of_R_pivot	577254
dbg_newrel	0
delete_FB	66265
delete_cache	64089
diagact_arch	64112
divide_p	5474177
divide_p_elt	2372
divide_p_id	185366
divide_p_quo	5286442
dump_gen	1225897
err_units	0
expand	0
expandext	32194
expbitprec	2838183
extract_full_lattice	64020
fact_ok	1226447
fact_update	1978486
factorgen	16806015
fixarch	1304796
free_GRHcheck	134679
genback	28776
get_archclean	40
get_clg2	64112
get_embs	122384
get_fs	7512043
get_log_embed	725405
get_norm_fact	1229330
get_norm_fact_primes	69
get_pr_lists	1390215
get_random_ideal	55617
get_regulator	48891
get_y	69
getfu	64015
i2print	0
idealHNF_mulred	3510
idealmulpowprime2	4488
init_GRHcheck	134680
init_famat	65763
init_red_mod_units	1107799
init_rel	64089
inv_fact	0
isprincipal	174534
isprincipalall	1406543
isprincipalarch	1234942
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4955
makematal	20
makeunits	24908
matbotid	62493
matbotidembs	55458
matenlarge	55459
modIm	204628
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	194924
nfcyclotomicunits	64089
nfsign_from_logarch	162323
nfsign_fu	241157
nfsign_tu	239983
nfsign_units	35
not_given	396
nthideal	64015
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122424
prec_arch	1408354
primeneeded	64015
reallocate	64089
recover_partFB	1390215
red_mod_units	1107799
rel_embed	1016336
rnd_rel	55617
set_fact	2253547
set_rel_alpha	947761
signunits	7
small_norm	66733
small_norm_prec	64013
split_ideal	1390152
step	28184015
store	9209767
subFB_change	26388
subFBgen	66264
tailres	1129568
tailresback	2259136
trim_list	122424
triv_gen	464583
try_elt	1662
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16