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 30318-7d854b8994) Lines: 1467 1530 95.9 % Date: 2025-06-07 09:19:48 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	289561
RgX_gtofp_bit	7017652
RgX_normalize1	35705
X2XP1	5198412
ZX_Uspensky	1058798
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15245
ZX_graeffe	5383
ZX_realroots_irred	48350
ZX_rescale2prim	1934410
ZX_sturm	3735
ZX_sturm_i	120082
ZX_sturm_irred	116347
ZX_sturmpart	876217
ZX_to_ZiX	16454498
ZiX_sqr	98977473
_gen_nored	11121978
_gen_one	14370492
_gen_zero	323549
_intervalcmp	0
_mp_add	24575006
_mp_cmul	34597281
_mp_mul	4360524
_mp_sqr	6273642
_mp_sub	0
_sqrtnr	22680
a_posteriori_errors	530202
abs_update	7999513
abs_update_r	777902
all_roots	529151
append_clone	1601618
bkeval_single_power	5195590
check_ab	926837
checkbound	1850804
checkvalidpol	266759
clean_roots	529199
cleanroots	231644
cmp_complex_appr	2229138
conformal_basecase	1403378
conformal_mapping	467753
conformal_pol	1403496
dblexp	6544836
dbllog2	300336884
dft	501963
dual_modulus	1011647
eval_rel_pol	13126825
fft	14144026
fft2	7462
findpower	40935042
fix_roots	530201
fix_roots1	393868
fujiwara_bound	2005241
fujiwara_bound_real	1148896
graeffe	49474593
homothetie	1608613
homothetie2n	9949237
homothetie_gauss	36479557
ind_maxlog2	901891
initdft	995539
isexactpol	239634
isexactscalar	931280
isreal	961329
isvalidcoeff	1227239
logmax_modulus	4448467
logmin_modulus	1614109
logmodulus	606083
logpre_modulus	606084
logradius	493571
lower_bound	40934994
mydbllog2i	224233386
mydbllog2r	56092969
mydbllogr	9540440
mygprec	63673683
mygprec_absolute	4296455
mygprec_special	530203
mygprecrc	214928279
mygprecrc_special	2159198
myshiftic	135737702
myshiftrc	35481484
newton_polygon	5501086
optimize_split	493576
parameters	493574
pol_to_gaussint	17575307
polgraeffe	14
polmod_to_embed	84
polrootsbound	27118
polrootsbound_i	27111
polsolve	165676
quicktofp	6444282
realroots	50620
refine_F	501958
refine_H	2458921
root_error	1897281
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4287156
scalepol2n	0
sol_ok	3378
solve_exact_pol	231040
split_0	493899
split_0_1	468074
split_0_2	468074
split_1	467753
split_2	493573
split_complete	1517993
split_fromU	493576
split_pols	165672
splitcauchy	165678
splitpoleval	5195531
tocomplex	1199995
update_radius	493574
usp	936432

Generated by: LCOV version 1.16