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 30589-01bb95f8b7) Lines: 2215 2530 87.5 % Date: 2025-12-30 09:21:31 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62578
Buchall_deg1	1204
Buchall_param	65209
FB_aut_perm	66251
FBgen	66251
Fincke_Pohst_bound	266592
Fincke_Pohst_ideal	266591
Fincke_Pohst_ideal_both	266591
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496388
GRHok	1530867
RgC_expbitprec	1237083
RgM_expbitprec	48790
RgV_is1	105
SPLIT	1408957
SPLIT_i	1252846
SUnits_archclean	77
Ur_ZC_mul	1392548
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392546
ZV_mul	7325
_nfnewprec	57722
act_arch	2057280
add	2250495
addRe_modIm	6906878
add_cyclotomic_units	64074
add_principal_part	31963
add_rel	2488422
add_rel_i	2972996
add_to_fact	2919777
already_known	2968858
assign_subFB	67016
automorphism_matrices	64062
automorphism_perms	64001
bad_check	96225
bad_subFB	307573
ballvol	66251
be_honest	7
bnf_build_cheapfu	285482
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37413
bnf_compactfu_mat	70
bnf_get_B	2785113
bnf_get_C	2819255
bnf_get_GD	276783
bnf_get_Ur	1392547
bnf_get_W	1397522
bnf_get_ga	271824
bnf_get_vbase	1392629
bnf_has_fu	285768
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841335
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65204
cache_prime_dec	921194
can_factor	18355231
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64001
clean_cols	93054
cleanarch	3071483
cleanarchunit	133866
compute_R	96287
compute_invres	64001
compute_multiple_of_R	121731
compute_multiple_of_R_pivot	577537
dbg_newrel	0
delete_FB	66250
delete_cache	64074
diagact_arch	64098
divide_p	5623858
divide_p_elt	2348
divide_p_id	185479
divide_p_quo	5436036
dump_gen	1228028
err_units	0
expand	0
expandext	31984
expbitprec	2840321
extract_full_lattice	64007
fact_ok	1228547
fact_update	2052377
factorgen	16942716
fixarch	1306935
free_GRHcheck	134434
genback	28783
get_archclean	40
get_clg2	64097
get_embs	122428
get_fs	7513158
get_log_embed	726098
get_norm_fact	1231474
get_norm_fact_primes	69
get_pr_lists	1392611
get_random_ideal	55635
get_regulator	48886
get_y	69
getfu	64000
i2print	0
idealHNF_mulred	3537
idealmulpowprime2	4663
init_GRHcheck	134432
init_famat	65804
init_red_mod_units	1107812
init_rel	64074
inv_fact	0
isprincipal	174779
isprincipalall	1408720
isprincipalarch	1237086
isprincipalfact	31984
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62485
matbotidembs	55525
matenlarge	55525
modIm	204611
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64074
nfsign_from_logarch	162329
nfsign_fu	241153
nfsign_tu	239985
nfsign_units	35
not_given	396
nthideal	64000
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122468
prec_arch	1410517
primeneeded	64000
reallocate	64074
recover_partFB	1392611
red_mod_units	1107813
rel_embed	1017194
rnd_rel	55635
rnd_rel_par	0
rnd_rel_seq	55635
set_fact	2315405
set_rel_alpha	948777
signunits	7
small_norm	66759
small_norm_par	0
small_norm_prec	63998
small_norm_seq	66759
split_ideal	1392546
step	28415808
store	9461857
subFB_change	26407
subFBgen	66251
tailres	1129335
tailresback	2258654
trim_list	122468
triv_gen	464660
try_elt	1647
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16