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 30556-bb9f5f8fc8) Lines: 2476 2664 92.9 % Date: 2025-11-25 09:20:50 Functions: 237 247 96.0 % Legend: Lines: hit not hit

Function Name	Hit count
Itos	19019
QpV_to_QV	196
Qp_to_Q	735
RgC_RgV_mulrealsym	21630
RgM_mulreal	0
RgXY_cxevalx	63
RgX_cxeval	2410942
RgX_deflate_max	707955
RgX_deflate_order	1116084
RgX_degree	566158
RgX_derivn	833
RgX_integ	105
ZX_deflate_max	324518
ZX_deflate_order	521334
_abs	518
_egal	108995538
_egal_i	108995537
_gtopoly	3476131
_polcoef	2603348
_quot	875
_quotfi	7
_quotfs	301
_quotqs	28
_quotri	7
_quotrs	28
_quotsf	35
_quotsq	70
_quotsr	70
_rfraccoef	21
_sercoef	111930
ceil_safe	1052399
ceilr	2504
centerlift	60473
centerlift0	707
centerliftii	42518
compo	327
constmat	14
content0	131005
deg1pol	560429
deg1pol_shallow	8540905
deg2pol_shallow	320414
degree	11802
denom	229385
denom_i	12726755
denominator	128625
denominator_v	287
denompol	119
deriv	114128
derivn	1379
derivnser	210
derivser	25872
diffop	3535
diffop0	42
diviiround	64530025
divrem	1057
err_intformal	35
floor_safe	70743
gceil	235566
gcvtoi	1134671
gdeflate	14651
gdivent	6203554
gdiventgs	324723
gdiventres	1064
gdiventsg	6201366
gdivmod	0
gdivround	1452864
gdvd	15835
geq	47670645
geval	0
geval_gp	11020
gfloor	5359920
gfrac	426531
gge	248443
ggrando	7049
ggt	2374934
gimag	29365
gle	7628237
glt	6328228
gmod	46152812
gmodgs	22029330
gmodsg	44996877
gmodulo	2039533
gmodulsg	1431363
gmodulss	1171977
gne	61324892
gnot	604716
gppadicprec	105
gppoldegree	31217
gprecision	14391104
gpserprec	42
greal	6958
grndtoi	90553456
ground	2801691
gshift	47113079
gsubst	2706888
gsubst_v	84
gsubstpol	8722
gsubstvec	980
gtocol	350
gtocol0	3808
gtocolrev	0
gtocolrev0	294
gtopoly	1042090
gtopolyrev	2434040
gtovec	123983
gtovec0	128204
gtovecpost	1092
gtovecpre	3619
gtovecrev	0
gtovecrev0	308
gtovecsmall	18998
gtovecsmall0	7742
gtovecsmallpost	98
gtovecsmallpre	98
gtrunc	597742
gtrunc2n	116381092
gvar	131308048
gvar2	20673794
gvar9	59444
hqfeval	168
imag_i	297291531
init_qf_apply	504648
init_vectopre	3563
integ	350
integ_act	14
integser	26516
is_realext	178271
is_realquad	1099
iscomplex	0
isinexact	129201869
isinexactreal	14357
isint	486854
isrationalzeroscalar	0
isrealappr	1875780
issmall	326463
lift	2203760
lift0	2592013
lift_shallow	629278
liftall	26250
liftall_shallow	2002245
liftint	119
liftint_shallow	546
liftpol	5726
liftpol_shallow	21678903
listdeflate	21
lookup	833
mkcoln	1379
mkintn	24440
mkpoln	5597763
mkvecn	1213523
mkvecsmalln	134029
modRr_i	5079398
modRr_safe	0
mod_r	210
modrs	14
modsf	35
modsr	35
mulimag	103649
mulreal	15727925
numer	8631
numer_i	9050800
numerator	8925
op_ReIm	202578408
padic_to_Q	689479
padic_to_Q_shallow	14
padicprec	4172
padicprec_relative	2303
polcoef	727580
polcoef_i	3613839
poldeflate	8722
poldegree	146018
poleval	13370446
pollead	1211
prec0	9651103
precCOMPLEX	21346326
precREAL	964239688
precision	975554069
precrealexact	878713
qf_RgM_apply	7663
qf_ZM_apply	496985
qfb_ZM_apply	14
qfb_ZM_apply_i	14
qfbeval	347816
qfbevalb	7
qfbil	0
qfeval	17023
qfeval0	348075
qfevalb	567
qfnorm	0
qfnorm0	348019
quad_floor	518
quot	777
quotfi	7
quotfs	301
quotqs	14
quotrem	518
quotri	7
quotrs	14
quotsf	35
quotsq	35
quotsr	35
real_i	320334719
recvar	75236
rfrac_deriv	56
rfrac_derivn	42
round0	6097
round_i	53325723
roundr	3101847
roundr_safe	301936
safe_polmod	1358
scalarmat2	56
scalarpol	45210034
scalarpol_shallow	3680883
ser2pol_i	10166413
ser2pol_i_normalize	761099
ser2rfrac	707
ser2rfrac_i	11487
ser_inv	46732
ser_unscale	4193
serdeflate	5866
serdiffop	7
serequalXk	21588
serprec	70
serreverse	98
sertrunc	70
sertrunc_copy	2317
simplify	11556914
simplify_shallow	569297840
subst_higher	724080
subst_polmod	574
swapvar_act	28
tayl	21
tayl_act	14
trunc0	217
uu32toi	365284
uu32toineg	65563
var2_aux	10710
var2_polmod	3479
var2_rfrac	7231
variables_vec	42
variables_vecsmall	1288
vdeflate	63
vec_padicprec	826
vec_padicprec_relative	399
vec_serprec	14
vecdenom	292169
vecdenompol	14

Generated by: LCOV version 1.16