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 - gen3.c (source / functions) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 92.9 % 2658 2470 Test Date: 2026-07-23 17:04:59 Functions: 95.9 % 246 236 Legend: Lines:     hit not hit

Function Name	Hit count
RgM_mulreal	0
gdivmod	0
geval	0
gtocolrev	0
gtovecrev	0
iscomplex	0
isrationalzeroscalar	0
modRr_safe	0
qfbil	0
qfnorm	0
_quotfi	7
_quotri	7
qfbevalb	7
quotfi	7
quotri	7
serdiffop	7
constmat	14
integ_act	14
modrs	14
padic_to_Q_shallow	14
quotqs	14
tayl_act	14
vec_serprec	14
vecdenompol	14
_rfraccoef	21
listdeflate	21
qfb_ZM_apply	21
qfb_ZM_apply_i	21
tayl	21
_quotqs	28
swapvar_act	28
_quotsf	35
err_intformal	35
modsf	35
modsr	35
quotsf	35
quotsq	35
quotsr	35
diffop0	42
gpserprec	42
rfrac_derivn	42
rfrac_deriv	56
scalarmat2	56
RgXY_cxevalx	63
vdeflate	63
_quotsq	70
_quotsr	70
serprec	70
sertrunc	77
gsubst_v	84
gtovecsmallpost	98
gtovecsmallpre	98
serreverse	98
variables_vec	98
RgX_integ	105
gppadicprec	105
denompol	119
liftint	119
hqfeval	168
QpV_to_QV	196
derivnser	210
mod_r	210
trunc0	217
quotrs	266
_quotrs	280
denominator_v	287
gtocolrev0	294
_quotfs	301
quotfs	301
gtovecrev0	308
compo	327
gtocol	350
integ	350
vec_padicprec_relative	371
_abs	518
quotrem	518
liftint_shallow	546
qfevalb	567
subst_polmod	574
centerlift0	707
ser2rfrac	707
Qp_to_Q	735
quad_floor	742
quot	777
vec_padicprec	826
lookup	833
_quot	875
gsubstvec	980
divrem	1057
gdiventres	1064
gtovecpost	1092
is_realquad	1099
pollead	1211
variables_vecsmall	1344
safe_polmod	1358
derivn	1379
mkcoln	1379
padicprec_relative	2275
sertrunc_copy	2338
ceilr	2721
diffop	3535
var2_polmod	3570
init_vectopre	3773
gtovecpre	3829
gtocol0	4004
padicprec	4172
ser_unscale	4193
liftpol	5726
round0	6237
serdeflate	6818
var2_rfrac	6895
greal	7000
ggrando	7210
qf_RgM_apply	7663
gtovecsmall0	7819
gsubstpol	8302
poldeflate	8302
numer	8631
numerator	8925
var2_aux	10465
geval_gp	11020
degree	11314
ser2rfrac_i	11641
isinexactreal	14833
gdeflate	15183
gdvd	16055
qfeval	17023
Itos	19145
gtovecsmall	19187
RgC_RgV_mulrealsym	21630
mkintn	24804
serequalXk	25081
liftall	26264
derivser	29344
gimag	29477
integser	29988
gppoldegree	31392
centerliftii	42518
ser_inv	50015
centerlift	60473
gvar9	62846
floor_safe	72059
recvar	75691
mulimag	103649
_sercoef	111958
deriv	112910
uu32toineg	114643
gtovec	119447
gtovec0	123878
denominator	128149
content0	131005
mkvecsmalln	153621
poldegree	180439
is_realext	188978
denom	228909
gceil	235307
vecdenom	242315
gge	248443
roundr_safe	314432
deg2pol_shallow	324129
issmall	326463
gdiventgs	328076
uu32toi	328944
ZX_deflate_max	330313
deg1pol	334445
qfbeval	347816
qfnorm0	348026
qfeval0	348082
gfrac	426531
qf_ZM_apply	497055
init_qf_apply	504718
ZX_deflate_order	530252
RgX_degree	566892
gtrunc	597763
gnot	606149
lift_shallow	652418
isint	673894
padic_to_Q	689519
polcoef	727580
RgX_deflate_max	730396
subst_higher	730968
ser2pol_i_normalize	899117
gtopoly	1044992
ceil_safe	1058914
gmodulss	1074361
gcvtoi	1142511
mkvecn	1221225
RgX_deflate_order	1256813
gmodulsg	1343357
gdivround	1481201
isrealappr	1891216
gmodulo	1959902
liftall_shallow	2004499
precrealexact	2007084
lift	2205748
ggt	2375133
gtopolyrev	2434040
RgX_cxeval	2472913
lift0	2523007
_polcoef	2601098
gsubst	2741615
ground	3424936
_gtopoly	3479032
polcoef_i	3613484
roundr	3635924
scalarpol_shallow	3975112
modRr_i	5105155
gfloor	5539697
mkpoln	5629980
gdiventsg	6202773
gdivent	6204961
glt	6328264
gle	7628237
numer_i	9050681
deg1pol_shallow	9726617
prec0	9762998
simplify	11592339
ser2pol_i	11869399
denom_i	12319313
poleval	13415490
gprecision	15067335
gvar2	20672254
gmodgs	22032998
liftpol_shallow	22577944
precCOMPLEX	23097458
mulreal	29809725
gmodsg	45014195
scalarpol	45306395
gmod	46175890
gshift	47409545
geq	47673975
round_i	54676539
gne	61369738
diviiround	68081799
grndtoi	92451965
_egal	109043713
_egal_i	109043713
gtrunc2n	117762989
isinexact	129401112
gvar	133413089
op_ReIm	204306921
imag_i	301930374
real_i	328231247
simplify_shallow	523432520
precREAL	985697394
precision	997535321

Generated by: LCOV version 2.0-1