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 30862-ea47bd413c) Lines: 2467 2655 92.9 % Date: 2026-05-05 09:26:54 Functions: 236 246 95.9 % 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
tayl_act	14
vec_serprec	14
vecdenompol	14
_rfraccoef	21
listdeflate	21
tayl	21
_quotqs	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
RgX_integ	77
sertrunc	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
quotrs	266
_quotrs	280
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
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	2338
ceilr	2868
diffop	3535
var2_polmod	3570
init_vectopre	3773
gtovecpre	3829
gtocol0	4004
padicprec	4172
ser_unscale	4193
var2_rfrac	4907
liftpol	5726
round0	6237
serdeflate	6818
greal	7000
ggrando	7203
qf_RgM_apply	7663
gtovecsmall0	7819
poldeflate	8267
gsubstpol	8302
var2_aux	8477
numer	8631
numerator	8925
geval_gp	11020
degree	11314
ser2rfrac_i	11641
isinexactreal	14833
gdeflate	15183
gdvd	15894
qfeval	17023
Itos	19145
gtovecsmall	19187
RgC_RgV_mulrealsym	21630
mkintn	24531
serequalXk	25081
liftall	26264
derivser	29344
gimag	29477
integser	29988
gppoldegree	31392
centerliftii	42518
ser_inv	49931
gvar9	58814
centerlift	60473
floor_safe	72103
recvar	75236
mulimag	103649
_sercoef	111958
deriv	114128
uu32toineg	114648
gtovec	119447
gtovec0	123878
denominator	128149
content0	131005
poldegree	147411
mkvecsmalln	153604
is_realext	177888
denom	228909
gceil	235440
vecdenom	242315
gge	248443
roundr_safe	302481
deg2pol_shallow	322722
issmall	326463
gdiventgs	328017
uu32toi	328458
ZX_deflate_max	329122
deg1pol	334459
qfbeval	347816
qfnorm0	348019
qfeval0	348075
gfrac	426531
isint	493812
qf_ZM_apply	497034
init_qf_apply	504697
ZX_deflate_order	528097
RgX_degree	566858
gtrunc	597763
gnot	606151
lift_shallow	652411
padic_to_Q	689502
polcoef	727580
RgX_deflate_max	729408
subst_higher	731115
precrealexact	879629
ser2pol_i_normalize	899033
gtopoly	1043069
ceil_safe	1057557
gmodulss	1074313
gcvtoi	1141201
mkvecn	1220905
RgX_deflate_order	1252967
gmodulsg	1343638
gdivround	1459078
isrealappr	1886544
gmodulo	1959969
liftall_shallow	2004485
lift	2204755
ggt	2375133
gtopolyrev	2434040
RgX_cxeval	2442379
lift0	2521496
_polcoef	2601006
gsubst	2734713
ground	2843277
roundr	3139279
_gtopoly	3477109
polcoef_i	3613273
scalarpol_shallow	3979901
modRr_i	5104791
gfloor	5363650
mkpoln	5612803
gdiventsg	6202773
gdivent	6204961
glt	6328264
gle	7628237
numer_i	8948579
scalarpol	9098984
deg1pol_shallow	9724981
prec0	9764660
simplify	11593165
ser2pol_i	11869315
denom_i	12211779
poleval	13306272
gprecision	14498948
mulreal	15746521
gvar2	20439015
precCOMPLEX	21521278
gmodgs	22030548
liftpol_shallow	22481818
gmodsg	45014125
gmod	46171620
gshift	47183780
geq	47673633
round_i	54205127
gne	61369398
diviiround	67801584
grndtoi	91661359
_egal_i	109043035
_egal	109043042
gtrunc2n	117588303
isinexact	126756728
gvar	137695611
op_ReIm	204012728
imag_i	299663236
real_i	325289982
simplify_shallow	514973504
precREAL	983773741
precision	995549094

Generated by: LCOV version 1.16