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 30640-c2c58e18c5) Lines: 2476 2664 92.9 % Date: 2026-01-27 08:51:18 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	2107621
RgX_deflate_max	654363
RgX_deflate_order	997285
RgX_degree	316562
RgX_derivn	833
RgX_integ	105
ZX_deflate_max	260515
ZX_deflate_order	398350
_abs	518
_egal	108989996
_egal_i	108989994
_gtopoly	3339816
_polcoef	2266862
_quot	875
_quotfi	7
_quotfs	301
_quotqs	28
_quotri	7
_quotrs	28
_quotsf	35
_quotsq	70
_quotsr	70
_rfraccoef	21
_sercoef	111930
ceil_safe	933125
ceilr	2504
centerlift	60473
centerlift0	707
centerliftii	42518
compo	327
constmat	14
content0	131005
deg1pol	560434
deg1pol_shallow	7977924
deg2pol_shallow	309811
degree	11284
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	59308185
divrem	1057
err_intformal	35
floor_safe	55902
gceil	235565
gcvtoi	1000566
gdeflate	14231
gdivent	6204674
gdiventgs	253229
gdiventres	1064
gdiventsg	6202486
gdivmod	0
gdivround	1387777
gdvd	10359
geq	47664930
geval	0
geval_gp	11020
gfloor	5355573
gfrac	426531
gge	248443
ggrando	7049
ggt	2369300
gimag	29365
gle	7628236
glt	6328228
gmod	46150125
gmodgs	22029330
gmodsg	44997997
gmodulo	1937212
gmodulsg	1320641
gmodulss	1052087
gne	61325067
gnot	605924
gppadicprec	105
gppoldegree	31231
gprecision	13109823
gpserprec	42
greal	6958
grndtoi	85391624
ground	2533616
gshift	45786363
gsubst	2617889
gsubst_v	84
gsubstpol	8302
gsubstvec	980
gtocol	350
gtocol0	3808
gtocolrev	0
gtocolrev0	294
gtopoly	905774
gtopolyrev	2434040
gtovec	119447
gtovec0	123668
gtovecpost	1092
gtovecpre	3619
gtovecrev	0
gtovecrev0	308
gtovecsmall	19040
gtovecsmall0	7784
gtovecsmallpost	98
gtovecsmallpre	98
gtrunc	597741
gtrunc2n	101424053
gvar	129605149
gvar2	20673633
gvar9	59444
hqfeval	168
imag_i	267326478
init_qf_apply	504676
init_vectopre	3563
integ	350
integ_act	14
integser	26516
is_realext	151200
is_realquad	1099
iscomplex	0
isinexact	128689311
isinexactreal	14357
isint	486854
isrationalzeroscalar	0
isrealappr	1577238
issmall	326463
lift	2182267
lift0	2499099
lift_shallow	607538
liftall	26250
liftall_shallow	2001210
liftint	119
liftint_shallow	546
liftpol	5726
liftpol_shallow	21429469
listdeflate	21
lookup	833
mkcoln	1379
mkintn	24531
mkpoln	5513033
mkvecn	816318
mkvecsmalln	133768
modRr_i	4819157
modRr_safe	0
mod_r	210
modrs	14
modsf	35
modsr	35
mulimag	103649
mulreal	15526943
numer	8631
numer_i	9050513
numerator	8925
op_ReIm	183974030
padic_to_Q	689478
padic_to_Q_shallow	14
padicprec	4172
padicprec_relative	2303
polcoef	727580
polcoef_i	2994042
poldeflate	8302
poldegree	134568
poleval	13317410
pollead	1211
prec0	8577498
precCOMPLEX	20323569
precREAL	926930339
precision	937826691
precrealexact	878690
qf_RgM_apply	7663
qf_ZM_apply	497013
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	288423947
recvar	75236
rfrac_deriv	56
rfrac_derivn	42
round0	6097
round_i	50436802
roundr	2894760
roundr_safe	284336
safe_polmod	1358
scalarmat2	56
scalarpol	45172077
scalarpol_shallow	3519400
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	11568427
simplify_shallow	570905651
subst_higher	686204
subst_polmod	574
swapvar_act	28
tayl	21
tayl_act	14
trunc0	217
uu32toi	328538
uu32toineg	114646
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