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 30838-aa3635ec72) Lines: 607 680 89.3 %
Date: 2026-04-27 09:26:59 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 20510
addss 25067
subss 25067
subuu 25067
dvdis 33751
cmprs 40996
cgetr_block 44308
sdivsi 102147
stack_calloc 110688
gc_stoi 155897
dvdui 167195
subis 171736
Fl_ellj_pre 238052
mindd 264381
truedivis 268365
cmpri 302869
mod16 307028
Mod32 311108
uutoineg 362540
Mod16 389733
mpdiv 395373
cgetg_block 424560
gc_utoi 468809
dvdiu 576274
umodui 711392
cmpsr 796112
rdivss 839647
real2n 1068645
addri 1106275
equalis 1151482
equalsi 1151664
gc_utoipos 1153577
real_0 1157770
mpround 1216585
absrnz_equal2n 1301232
cmpss 1392943
Mod8 2073841
mpcmp 2156226
Mod2 2370253
udivuu_rem 2418379
gc_int 2739321
mulru 2765892
subir 3000040
equaliu 3021852
equalui 3021854
itou_or_0 3146274
maxdd 3211670
cmpis 3634561
negr 3683299
cmpsi 3866561
ceildivuu 3902502
Fl_center 4486122
absrnz_equal1 4557039
real_1_bit 4714244
mod4 5140845
subri 6101020
subsi 6184762
truedivsi 6202318
umuluu_or_0 6273561
affsi 6446320
maxuu 6610984
mulrs 7181596
fractor 7379565
umuluu_le 7617880
gc_NULL 7962620
cmpir 9448290
ugcdiu 10319892
affectsign_safe 10729359
uabsdiviu_rem 11892741
addrs 12364339
smodss 12481339
cmpiu 12968613
cmpui 12968829
rdivii 13105359
rdiviiz 13149910
mpabs_shallow 13428463
divii 14050816
utor 14266550
affur 14266666
mod8 15585330
subrs 16544586
dvdii 16899937
Fl_halve 18770957
modis 19638526
int_bit 20973451
smodis 21176102
hammingu 24048805
evalvalser 24359743
abscmpiu 32439988
abscmpui 32440047
mulri 38306395
mpexpo 38879502
absequaliu 39546625
absequalui 41296641
Mod4 43854885
itos_or_0 44912184
modsi 45242161
affui 45491533
Fl_div 46769616
stack_malloc 46923783
umodi2n 48998031
sdivsi_rem 51446776
gc_ulong 51696369
truedivii 54733122
stack_malloc_align 55539316
affrr_fixlg 56117344
absi_shallow 56482362
gc_bool 56790513
mod2 62590431
Fl_addmulmul_pre 64649987
minuu 69553637
remlll_pre 75598610
evalprecp 78673700
evalvalp 81630941
Fl_triple 87291159
mpsqr 90786634
addiu 96943253
Fl_sqr 99508810
addui 101016716
fixlg 105857084
mod2BIL 107449514
mpodd 116094588
icopyspec 118026932
subiu 133454325
real_1 133718084
subui 138431428
mpshift 153452561
togglesign_safe 157259503
dvmduBIL 163560949
itou 179081916
gc_double 184217507
shiftr 188198205
vali 191179950
addis 194756792
varncmp 199456976
gc_long 242671788
mpsub 249784352
utoineg 298134312
cgetineg 298994674
rtor 303786563
addsi 319941429
muliu 373397666
Fl_double 442755846
mulis 467123443
shiftr_inplace 467144494
itos 476315829
real_0_bit 482258818
addir 482842919
affsr 501452068
stor 501767913
mpadd 572715449
negi 641048900
itor 716969555
Fl_neg 729219983
umodsu 734193788
expu 797147272
stoi 798817863
lg2prec 816001853
mpmul 835535356
rcopy 916959334
mpneg 926934173
affii 964603119
subrr 1006581842
cmpuu 1490553810
cgetg_copy 1492194761
cgetr 1876196853
togglesign 1953758647
minss 2027553277
absi 2069036144
mpabs 2139983162
setabssign 2207294663
Fl_sqr_pre 2337148008
nbits2lg 2403723701
expi 2425311178
Fl_mul 2436302573
addrr 2931931292
remii 3062528932
adduu 3447797577
stackdummy 3683443692
Fl_mul_pre 4219153190
leafcopy 5063816974
shift_right 5733331199
Fl_add 6156687739
dvmdsBIL 7151320952
Fl_sub 7394613715
Fl_addmul_pre 7657911984
subii 7719184219
shift_left 7798729120
uutoi 8937008993
icopy 9155547129
maxss 9700002658
utoi 12051085878
addii 12534177649
evalexpo 13397618163
utoipos 14266483941
gc_const 15655963990
cgetipos 16448835114
cgetg 25521267647
cgeti 27479543848
new_chunk 95148833218
evallg 96863642279
set_avma 131377223791

Generated by: LCOV version 1.16