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 30772-246cd0a587) Lines: 605 680 89.0 %
Date: 2026-03-28 09:27:57 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 44202
sdivsi 102150
stack_calloc 110675
gc_stoi 155903
dvdui 167195
subis 171740
Fl_ellj_pre 238060
mindd 264380
truedivis 268369
cmpri 284263
mod16 307026
Mod32 311108
uutoineg 364214
Mod16 389733
cgetg_block 426242
gc_utoi 468819
dvdiu 576275
mpdiv 665531
umodui 711392
cmpsr 796098
rdivss 839647
real2n 1068593
addri 1106293
equalis 1151098
equalsi 1151279
gc_utoipos 1153596
real_0 1157727
mpround 1216595
absrnz_equal2n 1300251
cmpss 1392943
Mod8 2074117
mpcmp 2226325
Mod2 2370133
udivuu_rem 2418379
gc_int 2742585
mulru 2765892
subir 3004970
equaliu 3021730
equalui 3021730
itou_or_0 3147030
maxdd 3211221
cmpis 3634571
negr 3683193
cmpsi 3866570
ceildivuu 3903055
Fl_center 4486151
absrnz_equal1 4553822
real_1_bit 4713925
mod4 5140917
subri 6062762
subsi 6184560
truedivsi 6202031
umuluu_or_0 6233268
affsi 6446068
maxuu 6611188
mulrs 7181596
fractor 7379036
umuluu_le 7617880
gc_NULL 7962587
cmpir 9460107
ugcdiu 10319433
affectsign_safe 10730958
uabsdiviu_rem 11892741
addrs 12360838
smodss 12667221
cmpiu 12988774
cmpui 12988856
rdivii 13109285
rdiviiz 13149117
mpabs_shallow 13428463
divii 14060720
utor 14334888
affur 14335013
mod8 15586403
subrs 16536279
dvdii 16901455
Fl_halve 18832365
modis 19638526
int_bit 20965402
smodis 21176088
hammingu 24048771
evalvalser 24359582
abscmpiu 33748329
abscmpui 33748394
mulri 38284923
mpexpo 38873690
absequaliu 39547364
absequalui 41297361
Mod4 43862848
itos_or_0 44912221
modsi 45242110
affui 45491532
Fl_div 46845771
stack_malloc 46928765
umodi2n 49006409
sdivsi_rem 51446455
gc_ulong 52088108
truedivii 54722513
stack_malloc_align 55534340
affrr_fixlg 56110141
gc_bool 56786769
absi_shallow 57796693
mod2 62590568
Fl_addmulmul_pre 64791989
minuu 69723233
remlll_pre 76439499
evalprecp 78684357
evalvalp 81641046
Fl_triple 88291604
mpsqr 91040191
Fl_sqr 99553345
addiu 99555844
addui 103631006
fixlg 105720874
mod2BIL 107451651
mpodd 116095015
icopyspec 117797543
subiu 133396659
real_1 133622289
subui 138372652
mpshift 153604624
togglesign_safe 157323259
dvmduBIL 163739821
itou 179081228
gc_double 184191837
shiftr 187938553
vali 190835746
addis 194709834
varncmp 198759955
gc_long 242625839
mpsub 251583569
utoineg 297818222
cgetineg 298679450
rtor 303779394
addsi 319897302
muliu 373452085
Fl_double 446371481
mulis 467121962
shiftr_inplace 467585787
itos 476297326
addir 483063003
real_0_bit 484677632
affsr 501447423
stor 501801816
mpadd 574968014
negi 640894782
itor 717226736
Fl_neg 729655859
umodsu 734217779
expu 797040667
stoi 799144581
lg2prec 816328551
mpmul 839278788
rcopy 916898028
mpneg 926579289
affii 966311488
subrr 1006536682
cgetg_copy 1490158095
cmpuu 1490495289
cgetr 1876618924
togglesign 1954075300
minss 2028088154
absi 2067160310
mpabs 2138140730
setabssign 2205166922
Fl_sqr_pre 2352738376
nbits2lg 2405920932
expi 2425578550
Fl_mul 2442384234
addrr 2935520844
remii 3065890788
adduu 3453954221
stackdummy 3694302566
Fl_mul_pre 4245884420
leafcopy 5061659001
shift_right 5740048043
Fl_add 6167916736
dvmdsBIL 7158173757
Fl_sub 7444332583
Fl_addmul_pre 7691378018
subii 7723469090
shift_left 7801290360
uutoi 8954390680
icopy 9161526617
maxss 9745116283
utoi 12073756157
addii 12554028689
evalexpo 13410106831
utoipos 14293941893
gc_const 15651879270
cgetipos 16480745204
cgetg 25571390574
cgeti 27509755819
new_chunk 95237399062
evallg 96971893579
set_avma 131507185887

Generated by: LCOV version 1.16