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 30773-2078653b96) Lines: 2476 2664 92.9 % Date: 2026-04-01 09:27:34 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
RgX_integ	77
gsubst_v	84
gtovecsmallpost	98
gtovecsmallpre	98
serreverse	98
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	371
_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
RgX_derivn	798
vec_padicprec	826
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	2275
sertrunc_copy	2317
ceilr	2854
diffop	3535
var2_polmod	3570
init_vectopre	3773
gtovecpre	3829
gtocol0	4004
padicprec	4172
ser_unscale	4193
var2_rfrac	4907
liftpol	5726
round0	6097
serdeflate	6566
greal	6958
ggrando	7175
qf_RgM_apply	7663
gtovecsmall0	7819
poldeflate	8267
gsubstpol	8302
var2_aux	8477
numer	8631
numerator	8925
geval_gp	11020
degree	11314
ser2rfrac_i	11487
isinexactreal	14707
gdeflate	14931
gdvd	15895
qfeval	17023
Itos	19145
gtovecsmall	19187
RgC_RgV_mulrealsym	21630
serequalXk	24388
mkintn	24531
liftall	26264
derivser	28672
integser	29316
gimag	29365
gppoldegree	31231
centerliftii	42518
ser_inv	48846
gvar9	58814
centerlift	60473
floor_safe	72099
recvar	75236
mulimag	103649
_sercoef	111958
deriv	114128
uu32toineg	114628
gtovec	119447
gtovec0	123878
denominator	128149
content0	131005
poldegree	147244
mkvecsmalln	153603
is_realext	177888
denom	228909
gceil	236266
vecdenom	242315
gge	248443
roundr_safe	302180
deg2pol_shallow	321776
issmall	326463
gdiventgs	327755
ZX_deflate_max	327830
uu32toi	328528
deg1pol	334355
qfbeval	347816
qfnorm0	348019
qfeval0	348075
gfrac	426531
isint	492454
qf_ZM_apply	497034
init_qf_apply	504697
ZX_deflate_order	526757
RgX_degree	566853
gtrunc	597763
gnot	606088
lift_shallow	652411
padic_to_Q	689503
polcoef	727580
subst_higher	727797
RgX_deflate_max	729349
ser2pol_i_normalize	864727
precrealexact	878746
gtopoly	1043107
ceil_safe	1056905
gmodulss	1074299
RgX_deflate_order	1137180
gcvtoi	1140545
mkvecn	1219994
gmodulsg	1341710
gdivround	1459137
isrealappr	1886466
gmodulo	1958040
liftall_shallow	2004485
lift	2204770
ggt	2374979
gtopolyrev	2434040
RgX_cxeval	2442004
lift0	2521511
_polcoef	2600942
gsubst	2726873
ground	2839953
roundr	3136456
_gtopoly	3477148
polcoef_i	3613231
scalarpol_shallow	3874043
modRr_i	5098329
gfloor	5362541
mkpoln	5608319
gdiventsg	6202486
gdivent	6204674
glt	6328208
gle	7628237
numer_i	8948607
scalarpol	9061260
deg1pol_shallow	9395191
prec0	9759264
ser2pol_i	11412844
simplify	11572914
denom_i	12211807
poleval	13305472
gprecision	14470020
mulreal	15745365
gvar2	20438756
precCOMPLEX	21497870
liftpol_shallow	21928897
gmodgs	22030548
gmodsg	45014125
gmod	46171621
gshift	47179073
geq	47668170
round_i	54195708
gne	61325067
diviiround	67778179
grndtoi	91642804
_egal	108993242
_egal_i	108993246
gtrunc2n	117608317
isinexact	126609308
gvar	136482345
op_ReIm	204031183
imag_i	299677766
real_i	325156351
simplify_shallow	513782922
precREAL	978910208
precision	990684777

Generated by: LCOV version 1.16