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 30482-15ec328664) Lines: 2205 2405 91.7 % Date: 2025-09-07 09:24:11 Functions: 156 167 93.4 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62600
Buchall_deg1	1204
Buchall_param	65225
FB_aut_perm	66268
FBgen	66267
Fincke_Pohst_bound	266164
Fincke_Pohst_ideal	266166
FlxqX_chinese_unit	1379
GRHchk	496363
GRHok	1532844
RgC_expbitprec	1234945
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1406567
SPLIT_i	1250410
SUnits_archclean	77
Ur_ZC_mul	1390162
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1390163
ZV_mul	7283
_nfnewprec	57729
act_arch	2055137
add	2247980
addRe_modIm	6901150
add_cyclotomic_units	64091
add_principal_part	32171
add_rel	2426496
add_rel_i	2909981
add_to_fact	2845220
already_known	2905834
assign_subFB	67040
automorphism_matrices	64078
automorphism_perms	64015
bad_check	96203
bad_subFB	307621
ballvol	66268
be_honest	7
bnf_build_cheapfu	285485
bnf_build_cycgen	26726
bnf_build_matalpha	20
bnf_build_units	50731
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2780341
bnf_get_C	2814914
bnf_get_GD	276769
bnf_get_Ur	1390162
bnf_get_W	1395138
bnf_get_ga	271813
bnf_get_vbase	1390245
bnf_has_fu	285764
bnfinit0	2625
bnfisprincipal0	1838869
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65219
cache_prime_dec	921169
can_factor	18215993
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64015
clean_cols	93042
cleanarch	3066392
cleanarchunit	133886
compute_R	96262
compute_invres	64014
compute_multiple_of_R	121732
compute_multiple_of_R_pivot	576855
dbg_newrel	0
delete_FB	66268
delete_cache	64091
diagact_arch	64112
divide_p	5474498
divide_p_elt	2409
divide_p_id	185365
divide_p_quo	5286726
dump_gen	1225896
err_units	0
expand	0
expandext	32194
expbitprec	2838181
extract_full_lattice	64022
fact_ok	1226445
fact_update	1978614
factorgen	16805896
fixarch	1304798
free_GRHcheck	134680
genback	28777
get_archclean	40
get_clg2	64112
get_embs	122426
get_fs	7512149
get_log_embed	725472
get_norm_fact	1229334
get_norm_fact_primes	69
get_pr_lists	1390225
get_random_ideal	55640
get_regulator	48893
get_y	69
getfu	64014
i2print	0
idealHNF_mulred	3508
idealmulpowprime2	4488
init_GRHcheck	134679
init_famat	65763
init_red_mod_units	1107798
init_rel	64090
inv_fact	0
isprincipal	174534
isprincipalall	1406544
isprincipalarch	1234944
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24908
matbotid	62495
matbotidembs	55499
matenlarge	55499
modIm	204633
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	194924
nfcyclotomicunits	64091
nfsign_from_logarch	162327
nfsign_fu	241151
nfsign_tu	239982
nfsign_units	35
not_given	396
nthideal	64015
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122465
prec_arch	1408350
primeneeded	64015
reallocate	64090
recover_partFB	1390225
red_mod_units	1107798
rel_embed	1016386
rnd_rel	55640
set_fact	2253730
set_rel_alpha	947793
signunits	7
small_norm	66749
small_norm_prec	64012
split_ideal	1390162
step	28183733
store	9210279
subFB_change	26402
subFBgen	66268
tailres	1129551
tailresback	2259091
trim_list	122465
triv_gen	464583
try_elt	1703
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16