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 30569-8181146aa1) Lines: 1467 1530 95.9 % Date: 2025-12-02 09:22:09 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	15272
_sqrtnr	22705
polrootsbound_i	27300
polrootsbound	27307
RgX_normalize1	35908
ZX_realroots_irred	48650
realroots	50627
ZX_sturm_irred	116798
ZX_sturm_i	123194
split_pols	166721
polsolve	166724
splitcauchy	166727
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267067
QX_complex_roots	296480
_gen_zero	326142
fix_roots1	398485
split_1	467938
conformal_mapping	467940
split_0_1	468303
split_0_2	468303
split_2	493987
logradius	493989
parameters	493991
update_radius	493992
split_fromU	493993
optimize_split	493994
split_0	494354
refine_F	502370
dft	502377
all_roots	536188
clean_roots	536233
a_posteriori_errors	537288
fix_roots	537290
mygprec_special	537298
logmodulus	606775
logpre_modulus	606775
abs_update_r	778664
ind_maxlog2	902692
isexactscalar	931714
isreal	961931
initdft	996368
dual_modulus	1012482
usp	1126061
ZX_sturmpart	1128261
check_ab	1178888
tocomplex	1214169
isvalidcoeff	1230270
ZX_Uspensky	1313926
conformal_basecase	1403936
conformal_pol	1404053
fujiwara_bound_real	1406961
split_complete	1525994
homothetie	1610139
append_clone	1614317
logmin_modulus	1614874
root_error	1912771
mygprecrc_special	2179380
ZX_rescale2prim	2233684
cmp_complex_appr	2238713
fujiwara_bound	2271951
checkbound	2354906
refine_H	2460597
scalepol	4289516
mygprec_absolute	4340594
_mp_mul	4374458
logmax_modulus	4451114
splitpoleval	5235834
bkeval_single_power	5235860
newton_polygon	5507355
X2XP1	5990192
_mp_sqr	6298252
dblexp	6549317
quicktofp	6979562
RgX_gtofp_bit	7031810
abs_update	8005463
mydbllogr	9547019
homothetie2n	9958039
_gen_nored	11203532
eval_rel_pol	13138501
fft	14159682
_gen_one	14473432
ZX_to_ZiX	16459268
pol_to_gaussint	17589441
_mp_add	24662496
_mp_cmul	34765447
myshiftrc	35508745
homothetie_gauss	36498394
findpower	40955443
lower_bound	40956237
graeffe	49508989
mydbllog2r	56185743
mygprec	63760565
ZiX_sqr	99031141
myshiftic	135832672
mygprecrc	215207496
mydbllog2i	226440759
dbllog2	302118899

Generated by: LCOV version 1.16