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 30586-ccf601f509) Lines: 2215 2530 87.5 % Date: 2025-12-26 09:21:14 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62574
Buchall_deg1	1204
Buchall_param	65204
FB_aut_perm	66251
FBgen	66250
Fincke_Pohst_bound	266553
Fincke_Pohst_ideal	266552
Fincke_Pohst_ideal_both	266550
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496380
GRHok	1530875
RgC_expbitprec	1237087
RgM_expbitprec	48790
RgV_is1	105
SPLIT	1408955
SPLIT_i	1252847
SUnits_archclean	77
Ur_ZC_mul	1392551
Vbase_to_FB	3461
ZM_remove_unused	164
ZV_divrem	1392551
ZV_mul	7325
_nfnewprec	57718
act_arch	2057284
add	2250499
addRe_modIm	6906867
add_cyclotomic_units	64074
add_principal_part	31963
add_rel	2488428
add_rel_i	2972956
add_to_fact	2919775
already_known	2968810
assign_subFB	67011
automorphism_matrices	64060
automorphism_perms	64001
bad_check	96199
bad_subFB	307571
ballvol	66251
be_honest	7
bnf_build_cheapfu	285482
bnf_build_cycgen	26725
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2785118
bnf_get_C	2819252
bnf_get_GD	276783
bnf_get_Ur	1392551
bnf_get_W	1397526
bnf_get_ga	271827
bnf_get_vbase	1392633
bnf_has_fu	285769
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841332
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65205
cache_prime_dec	921193
can_factor	18355704
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64000
clean_cols	93037
cleanarch	3071471
cleanarchunit	133866
compute_R	96260
compute_invres	64001
compute_multiple_of_R	121715
compute_multiple_of_R_pivot	577200
dbg_newrel	0
delete_FB	66251
delete_cache	64074
diagact_arch	64097
divide_p	5623942
divide_p_elt	2344
divide_p_id	185479
divide_p_quo	5436128
dump_gen	1228031
err_units	0
expand	0
expandext	31984
expbitprec	2840325
extract_full_lattice	64008
fact_ok	1228548
fact_update	2052299
factorgen	16942993
fixarch	1306934
free_GRHcheck	134434
genback	28784
get_archclean	40
get_clg2	64097
get_embs	122398
get_fs	7511751
get_log_embed	726062
get_norm_fact	1231473
get_norm_fact_primes	69
get_pr_lists	1392613
get_random_ideal	55604
get_regulator	48887
get_y	69
getfu	64001
i2print	0
idealHNF_mulred	3537
idealmulpowprime2	4663
init_GRHcheck	134427
init_famat	65805
init_red_mod_units	1107812
init_rel	64074
inv_fact	0
isprincipal	174779
isprincipalall	1408721
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	55493
matenlarge	55495
modIm	204623
myprecdbl	73
needed_bitprec	3857
nf_cxlog_normalize	197126
nfcyclotomicunits	64074
nfsign_from_logarch	162328
nfsign_fu	241156
nfsign_tu	239978
nfsign_units	35
not_given	396
nthideal	64001
pack_FB	0
pr_index	3461
pr_orbit_fill	11865
pre_allocate	122438
prec_arch	1410515
primeneeded	64000
reallocate	64074
recover_partFB	1392614
red_mod_units	1107813
rel_embed	1017117
rnd_rel	55604
rnd_rel_par	0
rnd_rel_seq	55604
set_fact	2315406
set_rel_alpha	948712
signunits	7
small_norm	66761
small_norm_par	0
small_norm_prec	63992
small_norm_seq	66761
split_ideal	1392550
step	28417484
store	9461898
subFB_change	26413
subFBgen	66251
tailres	1129251
tailresback	2258475
trim_list	122438
triv_gen	464660
try_elt	1650
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16