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 30504-e6f76a2795) Lines: 1467 1530 95.9 % Date: 2025-09-29 09:23:05 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296410
RgX_gtofp_bit	7031263
RgX_normalize1	35885
X2XP1	5990432
ZX_Uspensky	1313829
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15273
ZX_graeffe	5390
ZX_realroots_irred	48651
ZX_rescale2prim	2233811
ZX_sturm	6395
ZX_sturm_i	123167
ZX_sturm_irred	116771
ZX_sturmpart	1128184
ZX_to_ZiX	16454781
ZiX_sqr	99025743
_gen_nored	11203314
_gen_one	14473392
_gen_zero	326158
_intervalcmp	0
_mp_add	24662092
_mp_cmul	34767898
_mp_mul	4374538
_mp_sqr	6298262
_mp_sub	0
_sqrtnr	22708
a_posteriori_errors	537155
abs_update	8005021
abs_update_r	778653
all_roots	536110
append_clone	1613974
bkeval_single_power	5235985
check_ab	1178811
checkbound	2354751
checkvalidpol	267044
clean_roots	536151
cleanroots	231749
cmp_complex_appr	2238487
conformal_basecase	1403811
conformal_mapping	467901
conformal_pol	1403931
dblexp	6548763
dbllog2	302681767
dft	502341
dual_modulus	1012411
eval_rel_pol	13137619
fft	14159128
fft2	7462
findpower	40954084
fix_roots	537155
fix_roots1	398397
fujiwara_bound	2271708
fujiwara_bound_real	1406851
graeffe	49504687
homothetie	1610027
homothetie2n	9957313
homothetie_gauss	36496572
ind_maxlog2	902614
initdft	996291
isexactpol	239739
isexactscalar	931700
isreal	961853
isvalidcoeff	1230089
logmax_modulus	4450704
logmin_modulus	1614748
logmodulus	606734
logpre_modulus	606731
logradius	493945
lower_bound	40953739
mydbllog2i	226419745
mydbllog2r	56768706
mydbllogr	9546366
mygprec	63752970
mygprec_absolute	4339411
mygprec_special	537160
mygprecrc	215169390
mygprecrc_special	2178499
myshiftic	135829404
myshiftrc	35505995
newton_polygon	5506938
optimize_split	493954
parameters	493950
pol_to_gaussint	17588248
polgraeffe	14
polmod_to_embed	84
polrootsbound	27298
polrootsbound_i	27291
polsolve	166719
quicktofp	6978933
realroots	50627
refine_F	502335
refine_H	2460276
root_error	1912373
roots	8018
roots_aux	239767
roots_com	239739
rootsdeg0	42
scalepol	4289155
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494276
split_0_1	468221
split_0_2	468222
split_1	467900
split_2	493949
split_complete	1525704
split_fromU	493953
split_pols	166716
splitcauchy	166727
splitpoleval	5235791
tocomplex	1213912
update_radius	493952
usp	1126019

Generated by: LCOV version 1.16