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 30347-cb65b7994e) Lines: 1468 1530 95.9 % Date: 2025-06-27 09:22:08 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
_intervalcmp	0
_mp_sub	0
scalepol2n	0
ZX_Uspensky_equal_yes	14
polgraeffe	14
ZX_Uspensky_no	21
ZX_Uspensky_equal	28
rootsdeg0	42
FFT	56
FFTinv	56
polmod_to_embed	84
FFT_i	98
sol_ok	3378
ZX_graeffe	5383
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15275
_sqrtnr	22710
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35887
ZX_realroots_irred	48625
realroots	50627
ZX_sturm_irred	116762
ZX_sturm_i	123157
polsolve	166631
split_pols	166632
splitcauchy	166638
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266941
QX_complex_roots	290021
_gen_zero	325988
fix_roots1	394085
conformal_mapping	467779
split_1	467783
split_0_1	468103
split_0_2	468103
logradius	493825
update_radius	493826
optimize_split	493830
parameters	493830
split_2	493830
split_fromU	493830
split_0	494153
refine_F	502214
dft	502216
all_roots	529608
clean_roots	529653
fix_roots	530655
a_posteriori_errors	530656
mygprec_special	530661
logpre_modulus	606600
logmodulus	606601
abs_update_r	778445
ind_maxlog2	902396
isexactscalar	931280
isreal	961612
initdft	996046
dual_modulus	1012167
usp	1125907
ZX_sturmpart	1128175
check_ab	1178802
tocomplex	1201013
isvalidcoeff	1229675
ZX_Uspensky	1313782
conformal_basecase	1403458
conformal_pol	1403575
fujiwara_bound_real	1406769
split_complete	1518961
append_clone	1603031
homothetie	1609656
logmin_modulus	1614356
root_error	1899191
mygprecrc_special	2161050
cmp_complex_appr	2231728
ZX_rescale2prim	2233613
fujiwara_bound	2265020
checkbound	2354732
refine_H	2459752
scalepol	4288083
mygprec_absolute	4300448
_mp_mul	4373463
logmax_modulus	4449677
bkeval_single_power	5223425
splitpoleval	5223685
newton_polygon	5505823
X2XP1	5989895
_mp_sqr	6291967
dblexp	6547311
quicktofp	6960991
RgX_gtofp_bit	7023462
abs_update	8003726
mydbllogr	9544639
homothetie2n	9955132
_gen_nored	11174281
eval_rel_pol	13134982
fft	14157489
_gen_one	14443045
ZX_to_ZiX	16453066
pol_to_gaussint	17584597
_mp_add	24651779
_mp_cmul	34725020
myshiftrc	35498759
homothetie_gauss	36488880
lower_bound	40945498
findpower	40946843
graeffe	49495872
mydbllog2r	56778762
mygprec	63699794
ZiX_sqr	99013361
myshiftic	135783815
mygprecrc	214995259
mydbllog2i	224297146
dbllog2	300574760

Generated by: LCOV version 1.16