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:

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 - kernel/none - level1.h (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30792-987d9c52f6) Lines: 605 680 89.0 %
Date: 2026-04-09 09:26:26 Functions: 214 238 89.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Mod64 0
affectsign 0
divsi_rem 0
divss 0
divss_rem 0
dvdiiz 0
dvdisz 0
dvdiuz 0
dvmdis 0
dvmdsi 0
dvmdss 0
get_avma 0
mod64 0
modss 0
mpceil 0
mpfloor 0
rdivis 0
rdivsi 0
remis 0
remsi 0
remss 0
sdivss_rem 0
shiftl 0
shiftlr 0
mptrunc 49
real_m2n 126
varnmax 203
mod32 259
dvdsi 371
real_m1 455
mpcopy 665
ugcdui 2737
thuemorseu 3313
stack_calloc_align 3325
varnmin 10374
uabsdivui_rem 16693
absr 19040
addss 25067
subss 25067
subuu 25067
dvdis 33737
cmprs 40996
cgetr_block 44277
sdivsi 102150
stack_calloc 110695
gc_stoi 155900
dvdui 167195
subis 171738
Fl_ellj_pre 238048
mindd 264379
truedivis 268381
cmpri 284263
mod16 307029
Mod32 311108
uutoineg 361906
Mod16 389733
cgetg_block 426425
gc_utoi 468755
dvdiu 576275
mpdiv 665519
umodui 711392
cmpsr 796101
rdivss 839647
real2n 1068598
addri 1106274
equalis 1151225
equalsi 1151407
gc_utoipos 1153572
real_0 1157768
mpround 1216585
absrnz_equal2n 1300290
cmpss 1392943
Mod8 2073840
mpcmp 2226345
Mod2 2370199
udivuu_rem 2418379
gc_int 2739168
mulru 2765892
subir 3004954
equaliu 3021725
equalui 3021725
itou_or_0 3147014
maxdd 3211342
cmpis 3634420
negr 3682495
cmpsi 3866417
ceildivuu 3902993
Fl_center 4486087
absrnz_equal1 4553850
real_1_bit 4713987
mod4 5140664
subri 6094120
subsi 6184573
truedivsi 6202087
umuluu_or_0 6284095
affsi 6446008
maxuu 6610857
mulrs 7181596
fractor 7379012
umuluu_le 7617880
gc_NULL 7962241
cmpir 9445289
ugcdiu 10320947
affectsign_safe 10731536
uabsdiviu_rem 11892741
addrs 12360873
smodss 12460558
cmpui 12979731
cmpiu 12979976
rdivii 13104696
rdiviiz 13149364
mpabs_shallow 13428463
divii 14053400
utor 14335029
affur 14335132
mod8 15586293
subrs 16536243
dvdii 16892872
Fl_halve 18766550
modis 19638526
int_bit 20946546
smodis 21176088
hammingu 24048669
evalvalser 24359582
abscmpiu 33108244
abscmpui 33108369
mulri 38284403
mpexpo 38876686
absequaliu 39546039
absequalui 41296061
Mod4 43844430
itos_or_0 44911347
modsi 45242158
affui 45491533
Fl_div 46820921
stack_malloc 46928860
umodi2n 48987682
sdivsi_rem 51446542
gc_ulong 52060856
truedivii 54740669
stack_malloc_align 55535954
affrr_fixlg 56108707
gc_bool 56772320
absi_shallow 57163115
mod2 62588619
Fl_addmulmul_pre 64463677
minuu 69638437
remlll_pre 75601628
evalprecp 78668955
evalvalp 81625770
Fl_triple 87013859
mpsqr 91031234
addiu 98284849
Fl_sqr 99406758
addui 102359814
fixlg 105719361
mod2BIL 107443704
mpodd 116092441
icopyspec 117798509
subiu 133396219
real_1 133635704
subui 138372359
mpshift 153485684
togglesign_safe 157278172
dvmduBIL 165689367
itou 179080383
gc_double 184196137
shiftr 187920360
vali 190835315
addis 194688464
varncmp 198768654
gc_long 242626483
mpsub 251570433
utoineg 297826190
cgetineg 298687058
rtor 303752325
addsi 319872998
muliu 373283796
Fl_double 441519484
mulis 467113696
shiftr_inplace 467207861
itos 476310388
real_0_bit 482276172
addir 483060415
affsr 501266901
stor 501681650
mpadd 572868884
negi 640882389
itor 716862892
Fl_neg 729088993
umodsu 734137266
expu 796865801
stoi 799024380
lg2prec 815922908
mpmul 837016372
rcopy 916778358
mpneg 926526479
affii 964334789
subrr 1006291366
cgetg_copy 1490160759
cmpuu 1490406997
cgetr 1875813498
togglesign 1953245732
minss 2026037345
absi 2067124103
mpabs 2138077973
setabssign 2205123949
Fl_sqr_pre 2336523433
nbits2lg 2402597662
expi 2424505435
Fl_mul 2439326785
addrr 2931341078
remii 3060703542
adduu 3447198228
stackdummy 3685641447
Fl_mul_pre 4214882729
leafcopy 5061840620
shift_right 5732532742
Fl_add 6146826338
dvmdsBIL 7149729234
Fl_sub 7390707417
Fl_addmul_pre 7653536004
subii 7718321842
shift_left 7795021229
uutoi 8929987919
icopy 9151824914
maxss 9701566093
utoi 12045149576
addii 12532680468
evalexpo 13391329482
utoipos 14263019189
gc_const 15648688107
cgetipos 16448600700
cgetg 25527383853
cgeti 27467083675
new_chunk 95106302426
evallg 96847874204
set_avma 131332364326

Generated by: LCOV version 1.16