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
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	7742
numer	8631
gsubstpol	8722
poldeflate	8722
numerator	8925
var2_aux	10710
geval_gp	11020
ser2rfrac_i	11487
degree	11802
isinexactreal	14357
gdeflate	14651
gdvd	15835
qfeval	17023
gtovecsmall	18998
Itos	19019
serequalXk	21588
RgC_RgV_mulrealsym	21630
mkintn	24440
derivser	25872
liftall	26250
integser	26516
gimag	29365
gppoldegree	31217
centerliftii	42518
ser_inv	46732
gvar9	59444
centerlift	60473
uu32toineg	65563
floor_safe	70743
recvar	75236
mulimag	103649
_sercoef	111930
deriv	114128
gtovec	123983
gtovec0	128204
denominator	128625
content0	131005
mkvecsmalln	134029
poldegree	146018
is_realext	178271
denom	229385
gceil	235566
gge	248443
vecdenom	292169
roundr_safe	301936
deg2pol_shallow	320414
ZX_deflate_max	324518
gdiventgs	324723
issmall	326463
qfbeval	347816
qfnorm0	348019
qfeval0	348075
uu32toi	365284
gfrac	426531
isint	486854
qf_ZM_apply	496985
init_qf_apply	504648
ZX_deflate_order	521334
deg1pol	560429
RgX_degree	566158
gtrunc	597742
gnot	604716
lift_shallow	629278
padic_to_Q	689479
RgX_deflate_max	707955
subst_higher	724080
polcoef	727580
ser2pol_i_normalize	761099
precrealexact	878713
gtopoly	1042090
ceil_safe	1052399
RgX_deflate_order	1116084
gcvtoi	1134671
gmodulss	1171977
mkvecn	1213523
gmodulsg	1431363
gdivround	1452864
isrealappr	1875780
liftall_shallow	2002245
gmodulo	2039533
lift	2203760
ggt	2374934
RgX_cxeval	2410942
gtopolyrev	2434040
lift0	2592013
_polcoef	2603348
gsubst	2706888
ground	2801691
roundr	3101847
_gtopoly	3476131
polcoef_i	3613839
scalarpol_shallow	3680883
modRr_i	5079398
gfloor	5359920
mkpoln	5597763
gdiventsg	6201366
gdivent	6203554
glt	6328228
gle	7628237
deg1pol_shallow	8540905
numer_i	9050800
prec0	9651103
ser2pol_i	10166413
simplify	11556914
denom_i	12726755
poleval	13370446
gprecision	14391104
mulreal	15727925
gvar2	20673794
precCOMPLEX	21346326
liftpol_shallow	21678903
gmodgs	22029330
gmodsg	44996877
scalarpol	45210034
gmod	46152812
gshift	47113079
geq	47670645
round_i	53325723
gne	61324892
diviiround	64530025
grndtoi	90553456
_egal_i	108995537
_egal	108995538
gtrunc2n	116381092
isinexact	129201869
gvar	131308048
op_ReIm	202578408
imag_i	297291531
real_i	320334719
simplify_shallow	569297840
precREAL	964239688
precision	975554069

Generated by: LCOV version 1.16