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 30504-e6f76a2795) Lines: 2205 2405 91.7 % Date: 2025-09-29 09:23:05 Functions: 156 167 93.4 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62592
Buchall_deg1	1204
Buchall_param	65224
FB_aut_perm	66272
FBgen	66272
Fincke_Pohst_bound	266171
Fincke_Pohst_ideal	266174
FlxqX_chinese_unit	1379
GRHchk	496401
GRHok	1532913
RgC_expbitprec	1237070
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408697
SPLIT_i	1252510
SUnits_archclean	77
Ur_ZC_mul	1392288
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1392288
ZV_mul	7283
_nfnewprec	57726
act_arch	2057275
add	2250112
addRe_modIm	6905422
add_cyclotomic_units	64095
add_principal_part	32173
add_rel	2426525
add_rel_i	2910008
add_to_fact	2845286
already_known	2905872
assign_subFB	67034
automorphism_matrices	64083
automorphism_perms	64022
bad_check	96228
bad_subFB	307621
ballvol	66272
be_honest	7
bnf_build_cheapfu	285471
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37421
bnf_compactfu_mat	70
bnf_get_B	2784589
bnf_get_C	2819171
bnf_get_GD	276769
bnf_get_Ur	1392288
bnf_get_W	1397261
bnf_get_ga	271813
bnf_get_vbase	1392368
bnf_has_fu	285769
bnfinit0	2632
bnfisprincipal0	1841075
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65225
cache_prime_dec	921264
can_factor	18220331
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64021
clean_cols	93010
cleanarch	3070719
cleanarchunit	133895
compute_R	96289
compute_invres	64022
compute_multiple_of_R	121736
compute_multiple_of_R_pivot	576939
dbg_newrel	0
delete_FB	66271
delete_cache	64095
diagact_arch	64119
divide_p	5474381
divide_p_elt	2338
divide_p_id	185396
divide_p_quo	5286652
dump_gen	1228024
err_units	0
expand	0
expandext	32194
expbitprec	2840308
extract_full_lattice	64029
fact_ok	1228571
fact_update	1978610
factorgen	16808105
fixarch	1306927
free_GRHcheck	134687
genback	28775
get_archclean	40
get_clg2	64119
get_embs	122424
get_fs	7511601
get_log_embed	725457
get_norm_fact	1231459
get_norm_fact_primes	69
get_pr_lists	1392350
get_random_ideal	55652
get_regulator	48893
get_y	69
getfu	64022
i2print	0
idealHNF_mulred	3511
idealmulpowprime2	4488
init_GRHcheck	134685
init_famat	65768
init_red_mod_units	1107798
init_rel	64094
inv_fact	0
isprincipal	174534
isprincipalall	1408672
isprincipalarch	1237070
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62491
matbotidembs	55479
matenlarge	55479
modIm	204635
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	64095
nfsign_from_logarch	162325
nfsign_fu	241143
nfsign_tu	239982
nfsign_units	35
not_given	396
nthideal	64022
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122463
prec_arch	1410483
primeneeded	64020
reallocate	64094
recover_partFB	1392350
red_mod_units	1107798
rel_embed	1016389
rnd_rel	55652
set_fact	2253733
set_rel_alpha	947792
signunits	7
small_norm	66738
small_norm_prec	64020
split_ideal	1392285
step	28185832
store	9210145
subFB_change	26422
subFBgen	66272
tailres	1129651
tailresback	2259295
trim_list	122463
triv_gen	464660
try_elt	1651
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16