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: 2025-11-19 09:22:25 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62603
Buchall_deg1	1204
Buchall_param	65234
FB_aut_perm	66277
FBgen	66276
Fincke_Pohst_bound	266226
Fincke_Pohst_ideal	266231
Fincke_Pohst_ideal_both	266231
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496402
GRHok	1532913
RgC_expbitprec	1237073
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408699
SPLIT_i	1252512
SUnits_archclean	77
Ur_ZC_mul	1392289
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1392290
ZV_mul	7283
_nfnewprec	57727
act_arch	2057271
add	2250107
addRe_modIm	6905458
add_cyclotomic_units	64100
add_principal_part	32173
add_rel	2426791
add_rel_i	2910302
add_to_fact	2845450
already_known	2906156
assign_subFB	67043
automorphism_matrices	64085
automorphism_perms	64022
bad_check	96221
bad_subFB	307730
ballvol	66277
be_honest	7
bnf_build_cheapfu	285474
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37422
bnf_compactfu_mat	70
bnf_get_B	2784596
bnf_get_C	2819171
bnf_get_GD	276768
bnf_get_Ur	1392289
bnf_get_W	1397263
bnf_get_ga	271812
bnf_get_vbase	1392370
bnf_has_fu	285761
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	921256
can_factor	18221101
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64021
clean_cols	93093
cleanarch	3070741
cleanarchunit	133894
compute_R	96283
compute_invres	64022
compute_multiple_of_R	121793
compute_multiple_of_R_pivot	576316
dbg_newrel	0
delete_FB	66277
delete_cache	64100
diagact_arch	64119
divide_p	5474756
divide_p_elt	2450
divide_p_id	185393
divide_p_quo	5286915
dump_gen	1228026
err_units	0
expand	0
expandext	32194
expbitprec	2840310
extract_full_lattice	64029
fact_ok	1228574
fact_update	1978741
factorgen	16808830
fixarch	1306930
free_GRHcheck	134686
genback	28777
get_archclean	40
get_clg2	64119
get_embs	122483
get_fs	7512230
get_log_embed	725585
get_norm_fact	1231461
get_norm_fact_primes	69
get_pr_lists	1392351
get_random_ideal	55689
get_regulator	48894
get_y	69
getfu	64022
i2print	0
idealHNF_mulred	3506
idealmulpowprime2	4488
init_GRHcheck	134685
init_famat	65770
init_red_mod_units	1107799
init_rel	64100
inv_fact	0
isprincipal	174534
isprincipalall	1408672
isprincipalarch	1237071
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62496
matbotidembs	55532
matenlarge	55533
modIm	204631
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	64100
nfsign_from_logarch	162327
nfsign_fu	241162
nfsign_tu	239985
nfsign_units	35
not_given	396
nthideal	64022
pack_FB	0
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122522
prec_arch	1410481
primeneeded	64022
reallocate	64100
recover_partFB	1392351
red_mod_units	1107799
rel_embed	1016537
rnd_rel	55689
rnd_rel_par	0
rnd_rel_seq	55689
set_fact	2253982
set_rel_alpha	947829
signunits	7
small_norm	66754
small_norm_par	0
small_norm_prec	64019
small_norm_seq	66754
split_ideal	1392287
step	28187274
store	9210757
subFB_change	26459
subFBgen	66277
tailres	1129670
tailresback	2259327
trim_list	122522
triv_gen	464660
try_elt	1741
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16