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 30592-30cd175d91) Lines: 2476 2664 92.9 % Date: 2026-01-03 09:20:22 Functions: 237 247 96.0 % Legend: Lines: hit not hit

Function Name	Hit count
Itos	19103
QpV_to_QV	196
Qp_to_Q	735
RgC_RgV_mulrealsym	21630
RgM_mulreal	0
RgXY_cxevalx	63
RgX_cxeval	2441074
RgX_deflate_max	728857
RgX_deflate_order	1136981
RgX_degree	566833
RgX_derivn	833
RgX_integ	105
ZX_deflate_max	327542
ZX_deflate_order	526318
_abs	518
_egal	108992971
_egal_i	108992975
_gtopoly	3476882
_polcoef	2600872
_quot	875
_quotfi	7
_quotfs	301
_quotqs	28
_quotri	7
_quotrs	28
_quotsf	35
_quotsq	70
_quotsr	70
_rfraccoef	21
_sercoef	111930
ceil_safe	1056508
ceilr	2504
centerlift	60473
centerlift0	707
centerliftii	42518
compo	327
constmat	14
content0	131005
deg1pol	560640
deg1pol_shallow	8577209
deg2pol_shallow	321228
degree	11314
denom	228909
denom_i	12319110
denominator	128149
denominator_v	287
denompol	119
deriv	114128
derivn	1379
derivnser	210
derivser	25872
diffop	3535
diffop0	42
diviiround	64773533
divrem	1057
err_intformal	35
floor_safe	72096
gceil	235566
gcvtoi	1140149
gdeflate	14231
gdivent	6204674
gdiventgs	326330
gdiventres	1064
gdiventsg	6202486
gdivmod	0
gdivround	1459110
gdvd	15884
geq	47667897
geval	0
geval_gp	11020
gfloor	5360091
gfrac	426531
gge	248443
ggrando	7049
ggt	2374976
gimag	29365
gle	7628237
glt	6328228
gmod	46155650
gmodgs	22029330
gmodsg	44997997
gmodulo	1937285
gmodulsg	1320705
gmodulss	1053453
gne	61325067
gnot	604905
gppadicprec	105
gppoldegree	31231
gprecision	14433403
gpserprec	42
greal	6958
grndtoi	91193724
ground	2837168
gshift	47150730
gsubst	2708743
gsubst_v	84
gsubstpol	8302
gsubstvec	980
gtocol	350
gtocol0	3808
gtocolrev	0
gtocolrev0	294
gtopoly	1042841
gtopolyrev	2434040
gtovec	119447
gtovec0	123668
gtovecpost	1092
gtovecpre	3619
gtovecrev	0
gtovecrev0	308
gtovecsmall	19040
gtovecsmall0	7784
gtovecsmallpost	98
gtovecsmallpre	98
gtrunc	597740
gtrunc2n	117318378
gvar	131715054
gvar2	20673633
gvar9	59444
hqfeval	168
imag_i	298936167
init_qf_apply	504697
init_vectopre	3563
integ	350
integ_act	14
integser	26516
is_realext	177888
is_realquad	1099
iscomplex	0
isinexact	129230659
isinexactreal	14357
isint	486854
isrationalzeroscalar	0
isrealappr	1885606
issmall	326463
lift	2204734
lift0	2521566
lift_shallow	651662
liftall	26250
liftall_shallow	2003694
liftint	119
liftint_shallow	546
liftpol	5726
liftpol_shallow	22009644
listdeflate	21
lookup	833
mkcoln	1379
mkintn	24531
mkpoln	5599286
mkvecn	1217884
mkvecsmalln	134018
modRr_i	5097821
modRr_safe	0
mod_r	210
modrs	14
modsf	35
modsr	35
mulimag	103649
mulreal	15739698
numer	8631
numer_i	9050513
numerator	8925
op_ReIm	203557662
padic_to_Q	689484
padic_to_Q_shallow	14
padicprec	4172
padicprec_relative	2303
polcoef	727580
polcoef_i	3613036
poldeflate	8302
poldegree	146516
poleval	13392244
pollead	1211
prec0	9751651
precCOMPLEX	21399583
precREAL	969671287
precision	981008531
precrealexact	878693
qf_RgM_apply	7663
qf_ZM_apply	497034
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	322153820
recvar	75236
rfrac_deriv	56
rfrac_derivn	42
round0	6097
round_i	53750563
roundr	3135917
roundr_safe	302145
safe_polmod	1358
scalarmat2	56
scalarpol	45232315
scalarpol_shallow	3682885
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	11568504
simplify_shallow	570930607
subst_higher	725410
subst_polmod	574
swapvar_act	28
tayl	21
tayl_act	14
trunc0	217
uu32toi	328530
uu32toineg	114635
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	242315
vecdenompol	14

Generated by: LCOV version 1.16