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) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30586-ccf601f509) Lines: 2476 2664 92.9 % Date: 2025-12-24 09:20:59 Functions: 237 247 96.0 % 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
qfb_ZM_apply	14
qfb_ZM_apply_i	14
quotqs	14
quotrs	14
tayl_act	14
vec_serprec	14
vecdenompol	14
_rfraccoef	21
listdeflate	21
tayl	21
_quotqs	28
_quotrs	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
variables_vec	42
rfrac_deriv	56
scalarmat2	56
RgXY_cxevalx	63
vdeflate	63
_quotsq	70
_quotsr	70
serprec	70
sertrunc	70
gsubst_v	84
gtovecsmallpost	98
gtovecsmallpre	98
serreverse	98
RgX_integ	105
gppadicprec	105
denompol	119
liftint	119
hqfeval	168
QpV_to_QV	196
derivnser	210
mod_r	210
trunc0	217
denominator_v	287
gtocolrev0	294
_quotfs	301
quotfs	301
gtovecrev0	308
compo	327
gtocol	350
integ	350
vec_padicprec_relative	399
_abs	518
quad_floor	518
quotrem	518
liftint_shallow	546
qfevalb	567
subst_polmod	574
centerlift0	707
ser2rfrac	707
Qp_to_Q	735
quot	777
vec_padicprec	826
RgX_derivn	833
lookup	833
_quot	875
gsubstvec	980
divrem	1057
gdiventres	1064
gtovecpost	1092
is_realquad	1099
pollead	1211
variables_vecsmall	1288
safe_polmod	1358
derivn	1379
mkcoln	1379
padicprec_relative	2303
sertrunc_copy	2317
ceilr	2504
var2_polmod	3479
diffop	3535
init_vectopre	3563
gtovecpre	3619
gtocol0	3808
padicprec	4172
ser_unscale	4193
liftpol	5726
serdeflate	5866
round0	6097
greal	6958
ggrando	7049
var2_rfrac	7231
qf_RgM_apply	7663
gtovecsmall0	7784
gsubstpol	8302
poldeflate	8302
numer	8631
numerator	8925
var2_aux	10710
geval_gp	11020
degree	11314
ser2rfrac_i	11487
gdeflate	14231
isinexactreal	14357
gdvd	15884
qfeval	17023
gtovecsmall	19040
Itos	19103
serequalXk	21588
RgC_RgV_mulrealsym	21630
mkintn	24531
derivser	25872
liftall	26250
integser	26516
gimag	29365
gppoldegree	31231
centerliftii	42518
ser_inv	46732
gvar9	59444
centerlift	60473
floor_safe	71951
recvar	75236
mulimag	103649
_sercoef	111930
deriv	114128
uu32toineg	114617
gtovec	119447
gtovec0	123668
denominator	128149
content0	131005
mkvecsmalln	134043
poldegree	146510
is_realext	177888
denom	228909
gceil	235566
vecdenom	242315
gge	248443
roundr_safe	302145
deg2pol_shallow	321224
gdiventgs	326356
issmall	326463
ZX_deflate_max	327534
uu32toi	328483
qfbeval	347816
qfnorm0	348019
qfeval0	348075
gfrac	426531
isint	486854
qf_ZM_apply	497034
init_qf_apply	504697
ZX_deflate_order	526289
deg1pol	560641
RgX_degree	566820
gtrunc	597742
gnot	604905
lift_shallow	651662
padic_to_Q	689486
subst_higher	725410
polcoef	727580
RgX_deflate_max	728858
ser2pol_i_normalize	761099
precrealexact	878720
gtopoly	1042868
gmodulss	1053451
ceil_safe	1056544
RgX_deflate_order	1136805
gcvtoi	1140036
mkvecn	1217864
gmodulsg	1320645
gdivround	1459138
isrealappr	1885602
gmodulo	1937227
liftall_shallow	2003694
lift	2204716
ggt	2374976
gtopolyrev	2434040
RgX_cxeval	2441080
lift0	2521548
_polcoef	2600532
gsubst	2708743
ground	2837129
roundr	3135897
_gtopoly	3476910
polcoef_i	3612577
scalarpol_shallow	3682912
modRr_i	5097828
gfloor	5360091
mkpoln	5601310
gdiventsg	6202486
gdivent	6204674
glt	6328228
gle	7628236
deg1pol_shallow	8577328
numer_i	9050513
prec0	9752197
ser2pol_i	10166413
simplify	11568504
denom_i	12319110
poleval	13392221
gprecision	14433361
mulreal	15739462
gvar2	20673633
precCOMPLEX	21399801
liftpol_shallow	22009750
gmodgs	22029330
gmodsg	44997997
scalarpol	45232407
gmod	46155650
gshift	47149328
geq	47668086
round_i	53754703
gne	61325067
diviiround	64774090
grndtoi	91203135
_egal	108993152
_egal_i	108993153
gtrunc2n	117322868
isinexact	129230140
gvar	131714834
op_ReIm	203557553
imag_i	298943468
real_i	322157647
simplify_shallow	570929613
precREAL	969688826
precision	981026094

Generated by: LCOV version 1.16