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: 2025-12-13 09:22:30 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	15275
_sqrtnr	22710
polrootsbound_i	27300
polrootsbound	27307
RgX_normalize1	35908
ZX_realroots_irred	48655
realroots	50627
ZX_sturm_irred	116803
ZX_sturm_i	123198
split_pols	166721
polsolve	166726
splitcauchy	166729
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267067
QX_complex_roots	296486
_gen_zero	326134
fix_roots1	398490
split_1	467931
conformal_mapping	467936
split_0_1	468294
split_0_2	468295
logradius	493985
split_2	493988
parameters	493991
update_radius	493991
optimize_split	493993
split_fromU	493993
split_0	494353
refine_F	502372
dft	502374
all_roots	536189
clean_roots	536236
fix_roots	537296
a_posteriori_errors	537297
mygprec_special	537301
logmodulus	606781
logpre_modulus	606785
abs_update_r	778696
ind_maxlog2	902692
isexactscalar	931714
isreal	961924
initdft	996365
dual_modulus	1012498
usp	1126018
ZX_sturmpart	1128259
check_ab	1178886
tocomplex	1214182
isvalidcoeff	1230270
ZX_Uspensky	1313930
conformal_basecase	1403919
conformal_pol	1404036
fujiwara_bound_real	1406977
split_complete	1526002
homothetie	1610166
append_clone	1614332
logmin_modulus	1614828
root_error	1912800
mygprecrc_special	2179406
ZX_rescale2prim	2233682
cmp_complex_appr	2238669
fujiwara_bound	2271983
checkbound	2354901
refine_H	2460557
scalepol	4289488
mygprec_absolute	4340674
_mp_mul	4374511
logmax_modulus	4451025
bkeval_single_power	5235632
splitpoleval	5235740
newton_polygon	5507421
X2XP1	5990141
_mp_sqr	6298241
dblexp	6549237
quicktofp	6979562
RgX_gtofp_bit	7031910
abs_update	8005806
mydbllogr	9547324
homothetie2n	9958069
_gen_nored	11202752
eval_rel_pol	13138764
fft	14160224
_gen_one	14472852
ZX_to_ZiX	16457000
pol_to_gaussint	17589694
_mp_add	24662001
_mp_cmul	34765795
myshiftrc	35507797
homothetie_gauss	36496388
findpower	40955297
lower_bound	40955835
graeffe	49507676
mydbllog2r	56184923
mygprec	63759935
ZiX_sqr	99030063
myshiftic	135823022
mygprecrc	215200485
mydbllog2i	226434024
dbllog2	302111652

Generated by: LCOV version 1.16