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 30802-b11b770002) Lines: 605 680 89.0 %
Date: 2026-04-12 09:26:48 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 44263
sdivsi 102148
stack_calloc 110681
gc_stoi 155901
dvdui 167195
subis 171739
Fl_ellj_pre 238073
mindd 264377
truedivis 268366
cmpri 284263
mod16 307028
Mod32 311108
uutoineg 362352
Mod16 389733
cgetg_block 426415
gc_utoi 468825
dvdiu 576272
mpdiv 665523
umodui 711392
cmpsr 796105
rdivss 839647
real2n 1068614
addri 1106270
equalis 1151145
equalsi 1151327
gc_utoipos 1153584
real_0 1157762
mpround 1216582
absrnz_equal2n 1300253
cmpss 1392943
Mod8 2073828
mpcmp 2226366
Mod2 2370232
udivuu_rem 2418379
gc_int 2739189
mulru 2765892
subir 3004968
equaliu 3021716
equalui 3021716
itou_or_0 3147016
maxdd 3211592
cmpis 3634496
negr 3682479
cmpsi 3866491
ceildivuu 3904030
Fl_center 4486194
absrnz_equal1 4553703
real_1_bit 4714030
mod4 5141000
subri 6063425
subsi 6184718
truedivsi 6202150
umuluu_or_0 6288808
affsi 6446261
maxuu 6611057
mulrs 7181596
fractor 7379013
umuluu_le 7617880
gc_NULL 7961622
cmpir 9456000
ugcdiu 10320726
affectsign_safe 10731680
uabsdiviu_rem 11892741
addrs 12360719
smodss 12501563
cmpui 12981738
cmpiu 12981778
rdivii 13105878
rdiviiz 13149451
mpabs_shallow 13428463
divii 14043655
utor 14335083
affur 14335183
mod8 15587094
subrs 16536122
dvdii 16897650
Fl_halve 18786441
modis 19638526
int_bit 20964681
smodis 21176088
hammingu 24048718
evalvalser 24359582
abscmpui 33771149
abscmpiu 33771161
mulri 38284577
mpexpo 38872745
absequaliu 39546343
absequalui 41296353
Mod4 43844037
itos_or_0 44912229
modsi 45242212
affui 45491533
Fl_div 46849117
stack_malloc 46928782
umodi2n 48987602
sdivsi_rem 51446659
gc_ulong 52087837
truedivii 54724298
stack_malloc_align 55532721
affrr_fixlg 56108581
gc_bool 56775005
absi_shallow 57824098
mod2 62589070
Fl_addmulmul_pre 64536755
minuu 69728996
remlll_pre 75791742
evalprecp 78675001
evalvalp 81631627
Fl_triple 87239325
mpsqr 91031425
Fl_sqr 99504274
addiu 99601955
addui 103676980
fixlg 105836284
mod2BIL 107448939
mpodd 116093345
icopyspec 117836672
subiu 133394960
real_1 133614327
subui 138371489
mpshift 153475278
togglesign_safe 157294520
dvmduBIL 165750998
itou 179081062
gc_double 184166234
shiftr 187912149
vali 190997460
addis 194702022
varncmp 199446478
gc_long 242670689
mpsub 251584071
utoineg 298101904
cgetineg 298962976
rtor 303755473
addsi 319894482
muliu 373340937
Fl_double 442469591
mulis 467109622
shiftr_inplace 467224420
itos 476283243
addir 483034668
real_0_bit 484057310
affsr 501209663
stor 501628815
mpadd 574454416
negi 640948831
itor 716750984
Fl_neg 729265720
umodsu 734157348
expu 797058862
stoi 799185378
lg2prec 815810495
mpmul 838629831
rcopy 916736579
mpneg 926583021
affii 964550263
subrr 1006291163
cmpuu 1490682928
cgetg_copy 1491852797
cgetr 1875601596
togglesign 1953408279
minss 2026149739
absi 2068692756
mpabs 2139664931
setabssign 2206836482
Fl_sqr_pre 2341801796
nbits2lg 2404173721
expi 2425229337
Fl_mul 2441181735
addrr 2932774860
remii 3062394431
adduu 3448939518
stackdummy 3691576897
Fl_mul_pre 4238216112
leafcopy 5063460809
shift_right 5732221510
Fl_add 6147663819
dvmdsBIL 7150012523
Fl_sub 7415795945
Fl_addmul_pre 7685972406
subii 7719087377
shift_left 7795022615
uutoi 8934723249
icopy 9155313065
maxss 9726201169
utoi 12051612261
addii 12533006852
evalexpo 13392098049
utoipos 14272814641
gc_const 15651051869
cgetipos 16459725251
cgetg 25545660998
cgeti 27479440319
new_chunk 95149251242
evallg 96896951295
set_avma 131388481366

Generated by: LCOV version 1.16