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 30571-c0dfe82732) Lines: 1467 1530 95.9 % Date: 2025-12-10 09:22:03 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	27298
polrootsbound	27305
RgX_normalize1	35906
ZX_realroots_irred	48652
realroots	50627
ZX_sturm_irred	116805
ZX_sturm_i	123200
split_pols	166717
polsolve	166719
splitcauchy	166725
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267065
QX_complex_roots	296487
_gen_zero	326140
fix_roots1	398488
split_1	467935
conformal_mapping	467937
split_0_1	468300
split_0_2	468301
logradius	493985
parameters	493989
update_radius	493990
split_2	493991
optimize_split	493992
split_fromU	493992
split_0	494357
refine_F	502372
dft	502381
all_roots	536199
clean_roots	536242
a_posteriori_errors	537290
fix_roots	537296
mygprec_special	537302
logmodulus	606780
logpre_modulus	606781
abs_update_r	778681
ind_maxlog2	902714
isexactscalar	931714
isreal	961926
initdft	996371
dual_modulus	1012492
usp	1126061
ZX_sturmpart	1128243
check_ab	1178870
tocomplex	1214188
isvalidcoeff	1230264
ZX_Uspensky	1313910
conformal_basecase	1403926
conformal_pol	1404044
fujiwara_bound_real	1406949
split_complete	1526005
homothetie	1610153
append_clone	1614330
logmin_modulus	1614856
root_error	1912804
mygprecrc_special	2179407
ZX_rescale2prim	2233705
cmp_complex_appr	2238744
fujiwara_bound	2271960
checkbound	2354870
refine_H	2460547
scalepol	4289504
mygprec_absolute	4340666
_mp_mul	4374541
logmax_modulus	4451077
bkeval_single_power	5235800
splitpoleval	5235868
newton_polygon	5507406
X2XP1	5990254
_mp_sqr	6298219
dblexp	6549309
quicktofp	6979527
RgX_gtofp_bit	7031866
abs_update	8005440
mydbllogr	9546949
homothetie2n	9958149
_gen_nored	11203846
eval_rel_pol	13138758
fft	14159793
_gen_one	14473140
ZX_to_ZiX	16458009
pol_to_gaussint	17589775
_mp_add	24662689
_mp_cmul	34768031
myshiftrc	35508835
homothetie_gauss	36499186
findpower	40956702
lower_bound	40956884
graeffe	49509925
mydbllog2r	56185661
mygprec	63760483
ZiX_sqr	99033799
myshiftic	135842458
mygprecrc	215203285
mydbllog2i	226454215
dbllog2	302139771

Generated by: LCOV version 1.16