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 - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30316-0578a48613) Lines: 1467 1530 95.9 % Date: 2025-06-02 09:19:41 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	289562
RgX_gtofp_bit	7017719
RgX_normalize1	35705
X2XP1	5198509
ZX_Uspensky	1058766
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15247
ZX_graeffe	5383
ZX_realroots_irred	48350
ZX_rescale2prim	1934492
ZX_sturm	3735
ZX_sturm_i	120083
ZX_sturm_irred	116348
ZX_sturmpart	876193
ZX_to_ZiX	16450956
ZiX_sqr	98967018
_gen_nored	11122425
_gen_one	14369690
_gen_zero	323547
_intervalcmp	0
_mp_add	24576426
_mp_cmul	34600051
_mp_mul	4360553
_mp_sqr	6273787
_mp_sub	0
_sqrtnr	22682
a_posteriori_errors	530195
abs_update	7999380
abs_update_r	777936
all_roots	529153
append_clone	1601621
bkeval_single_power	5195587
check_ab	926806
checkbound	1850739
checkvalidpol	266759
clean_roots	529193
cleanroots	231644
cmp_complex_appr	2229135
conformal_basecase	1403359
conformal_mapping	467746
conformal_pol	1403477
dblexp	6544772
dbllog2	300306591
dft	501959
dual_modulus	1011646
eval_rel_pol	13126926
fft	14144619
fft2	7462
findpower	40933875
fix_roots	530192
fix_roots1	393864
fujiwara_bound	2005210
fujiwara_bound_real	1148873
graeffe	49473439
homothetie	1608613
homothetie2n	9949093
homothetie_gauss	36476877
ind_maxlog2	901868
initdft	995529
isexactpol	239634
isexactscalar	931280
isreal	961317
isvalidcoeff	1227239
logmax_modulus	4448336
logmin_modulus	1614062
logmodulus	606087
logpre_modulus	606083
logradius	493565
lower_bound	40932950
mydbllog2i	224215089
mydbllog2r	56091387
mydbllogr	9540356
mygprec	63671338
mygprec_absolute	4296394
mygprec_special	530200
mygprecrc	214910362
mygprecrc_special	2159187
myshiftic	135700154
myshiftrc	35480852
newton_polygon	5501151
optimize_split	493570
parameters	493571
pol_to_gaussint	17575274
polgraeffe	14
polmod_to_embed	84
polrootsbound	27118
polrootsbound_i	27111
polsolve	165672
quicktofp	6444261
realroots	50613
refine_F	501957
refine_H	2458888
root_error	1897268
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4287090
scalepol2n	0
sol_ok	3350
solve_exact_pol	231040
split_0	493891
split_0_1	468066
split_0_2	468066
split_1	467748
split_2	493571
split_complete	1517985
split_fromU	493570
split_pols	165670
splitcauchy	165680
splitpoleval	5195436
tocomplex	1199999
update_radius	493571
usp	936401

Generated by: LCOV version 1.16