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 30572-91e0396466) Lines: 1467 1530 95.9 % Date: 2025-12-12 09:22:23 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	5390
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15273
_sqrtnr	22708
polrootsbound_i	27300
polrootsbound	27307
RgX_normalize1	35908
ZX_realroots_irred	48652
realroots	50627
ZX_sturm_irred	116804
ZX_sturm_i	123199
split_pols	166714
polsolve	166723
splitcauchy	166728
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267067
QX_complex_roots	296491
_gen_zero	326147
fix_roots1	398487
conformal_mapping	467934
split_1	467934
split_0_2	468298
split_0_1	468299
parameters	493980
update_radius	493986
logradius	493987
optimize_split	493988
split_2	493988
split_fromU	493988
split_0	494352
refine_F	502373
dft	502376
all_roots	536197
clean_roots	536239
fix_roots	537294
a_posteriori_errors	537295
mygprec_special	537301
logpre_modulus	606775
logmodulus	606776
abs_update_r	778689
ind_maxlog2	902679
isexactscalar	931714
isreal	961920
initdft	996358
dual_modulus	1012482
usp	1126016
ZX_sturmpart	1128217
check_ab	1178845
tocomplex	1214177
isvalidcoeff	1230270
ZX_Uspensky	1313888
conformal_basecase	1403919
conformal_pol	1404037
fujiwara_bound_real	1406928
split_complete	1525998
homothetie	1610137
append_clone	1614317
logmin_modulus	1614851
root_error	1912784
mygprecrc_special	2179404
ZX_rescale2prim	2233670
cmp_complex_appr	2238659
fujiwara_bound	2271925
checkbound	2354820
refine_H	2460538
scalepol	4289483
mygprec_absolute	4340638
_mp_mul	4374490
logmax_modulus	4451029
bkeval_single_power	5235897
splitpoleval	5235940
newton_polygon	5507341
X2XP1	5990111
_mp_sqr	6298202
dblexp	6549210
quicktofp	6979524
RgX_gtofp_bit	7031816
abs_update	8005213
mydbllogr	9546787
homothetie2n	9958040
_gen_nored	11202631
eval_rel_pol	13138526
fft	14159519
_gen_one	14473391
ZX_to_ZiX	16456886
pol_to_gaussint	17589467
_mp_add	24662752
_mp_cmul	34767948
myshiftrc	35508177
homothetie_gauss	36497644
findpower	40955995
lower_bound	40956003
graeffe	49508370
mydbllog2r	56185116
mygprec	63759531
ZiX_sqr	99031747
myshiftic	135829199
mygprecrc	215199151
mydbllog2i	226438630
dbllog2	302114743

Generated by: LCOV version 1.16