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 30582-6e9af8ee1d) Lines: 1467 1530 95.9 % Date: 2025-12-20 09:23:49 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	15287
_sqrtnr	22763
polrootsbound_i	27314
polrootsbound	27321
RgX_normalize1	35922
ZX_realroots_irred	48685
realroots	50627
ZX_sturm_irred	116812
ZX_sturm_i	123207
polsolve	166755
split_pols	166764
splitcauchy	166770
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267081
QX_complex_roots	296430
_gen_zero	326361
fix_roots1	398435
conformal_mapping	467906
split_1	467910
split_0_1	468271
split_0_2	468272
parameters	493955
logradius	493958
split_2	493961
update_radius	493961
split_fromU	493962
optimize_split	493963
split_0	494325
refine_F	502342
dft	502351
all_roots	536135
clean_roots	536184
a_posteriori_errors	537237
fix_roots	537241
mygprec_special	537246
logmodulus	606739
logpre_modulus	606740
abs_update_r	778663
ind_maxlog2	902652
isexactscalar	931714
isreal	961871
initdft	996309
dual_modulus	1012428
usp	1126037
ZX_sturmpart	1128226
check_ab	1178855
tocomplex	1214010
isvalidcoeff	1230081
ZX_Uspensky	1313910
conformal_basecase	1403842
conformal_pol	1403959
fujiwara_bound_real	1406909
split_complete	1525884
homothetie	1610055
append_clone	1614172
logmin_modulus	1614792
root_error	1912656
mygprecrc_special	2179190
ZX_rescale2prim	2233948
cmp_complex_appr	2238669
fujiwara_bound	2271893
checkbound	2354838
refine_H	2460506
scalepol	4289244
mygprec_absolute	4340127
_mp_mul	4374479
logmax_modulus	4450922
splitpoleval	5236615
bkeval_single_power	5236906
newton_polygon	5506984
X2XP1	5990721
_mp_sqr	6298534
dblexp	6548920
quicktofp	6979352
RgX_gtofp_bit	7031424
abs_update	8005502
mydbllogr	9547066
homothetie2n	9957638
_gen_nored	11200733
eval_rel_pol	13137925
fft	14159406
_gen_one	14475262
ZX_to_ZiX	16457269
pol_to_gaussint	17588781
_mp_add	24661516
_mp_cmul	34764208
myshiftrc	35506595
homothetie_gauss	36498399
lower_bound	40956611
findpower	40957009
graeffe	49505408
mydbllog2r	56184527
mygprec	63758893
ZiX_sqr	99038129
myshiftic	135806790
mygprecrc	215200999
mydbllog2i	226435242
dbllog2	302102697

Generated by: LCOV version 1.16