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 30550-07450a7a86) Lines: 2215 2530 87.5 % Date: 2025-11-18 09:22:37 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62597
Buchall_deg1	1204
Buchall_param	65229
FB_aut_perm	66272
FBgen	66271
Fincke_Pohst_bound	266137
Fincke_Pohst_ideal	266140
Fincke_Pohst_ideal_both	266140
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496401
GRHok	1532900
RgC_expbitprec	1237073
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408698
SPLIT_i	1252512
SUnits_archclean	77
Ur_ZC_mul	1392291
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1392292
ZV_mul	7283
_nfnewprec	57729
act_arch	2057291
add	2250144
addRe_modIm	6905453
add_cyclotomic_units	64095
add_principal_part	32173
add_rel	2426396
add_rel_i	2909845
add_to_fact	2845124
already_known	2905710
assign_subFB	67031
automorphism_matrices	64084
automorphism_perms	64022
bad_check	96180
bad_subFB	307629
ballvol	66271
be_honest	7
bnf_build_cheapfu	285483
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37420
bnf_compactfu_mat	70
bnf_get_B	2784600
bnf_get_C	2819172
bnf_get_GD	276769
bnf_get_Ur	1392291
bnf_get_W	1397267
bnf_get_ga	271813
bnf_get_vbase	1392374
bnf_has_fu	285769
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841075
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65226
cache_prime_dec	921250
can_factor	18220113
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64022
clean_cols	93029
cleanarch	3070727
cleanarchunit	133894
compute_R	96239
compute_invres	64022
compute_multiple_of_R	121712
compute_multiple_of_R_pivot	577245
dbg_newrel	0
delete_FB	66272
delete_cache	64095
diagact_arch	64119
divide_p	5474297
divide_p_elt	2347
divide_p_id	185396
divide_p_quo	5286558
dump_gen	1228024
err_units	0
expand	0
expandext	32194
expbitprec	2840311
extract_full_lattice	64029
fact_ok	1228572
fact_update	1978585
factorgen	16807895
fixarch	1306921
free_GRHcheck	134686
genback	28777
get_archclean	40
get_clg2	64119
get_embs	122392
get_fs	7512527
get_log_embed	725422
get_norm_fact	1231460
get_norm_fact_primes	69
get_pr_lists	1392355
get_random_ideal	55628
get_regulator	48893
get_y	69
getfu	64022
i2print	0
idealHNF_mulred	3512
idealmulpowprime2	4488
init_GRHcheck	134685
init_famat	65770
init_red_mod_units	1107798
init_rel	64095
inv_fact	0
isprincipal	174534
isprincipalall	1408672
isprincipalarch	1237074
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62492
matbotidembs	55447
matenlarge	55447
modIm	204632
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	64095
nfsign_from_logarch	162325
nfsign_fu	241156
nfsign_tu	239981
nfsign_units	35
not_given	396
nthideal	64022
pack_FB	0
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122432
prec_arch	1410482
primeneeded	64022
reallocate	64095
recover_partFB	1392355
red_mod_units	1107799
rel_embed	1016351
rnd_rel	55628
rnd_rel_par	0
rnd_rel_seq	55628
set_fact	2253594
set_rel_alpha	947773
signunits	7
small_norm	66731
small_norm_par	0
small_norm_prec	64018
small_norm_seq	66731
split_ideal	1392291
step	28184305
store	9209913
subFB_change	26409
subFBgen	66270
tailres	1129624
tailresback	2259232
trim_list	122432
triv_gen	464660
try_elt	1647
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16