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: 2025-12-11 09:22:11 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	22709
polrootsbound_i	27298
polrootsbound	27305
RgX_normalize1	35906
ZX_realroots_irred	48655
realroots	50627
ZX_sturm_irred	116799
ZX_sturm_i	123194
split_pols	166718
polsolve	166721
splitcauchy	166732
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267065
QX_complex_roots	296481
_gen_zero	326134
fix_roots1	398484
conformal_mapping	467920
split_1	467923
split_0_1	468286
split_0_2	468286
split_2	493966
logradius	493967
parameters	493968
update_radius	493969
optimize_split	493970
split_fromU	493971
split_0	494334
refine_F	502353
dft	502357
all_roots	536188
clean_roots	536233
fix_roots	537290
a_posteriori_errors	537292
mygprec_special	537294
logmodulus	606753
logpre_modulus	606754
abs_update_r	778660
ind_maxlog2	902667
isexactscalar	931714
isreal	961892
initdft	996322
dual_modulus	1012447
usp	1126070
ZX_sturmpart	1128239
check_ab	1178866
tocomplex	1214144
isvalidcoeff	1230264
ZX_Uspensky	1313904
conformal_basecase	1403876
conformal_pol	1403997
fujiwara_bound_real	1406951
split_complete	1525960
homothetie	1610090
append_clone	1614289
logmin_modulus	1614761
root_error	1912753
mygprecrc_special	2179357
ZX_rescale2prim	2233757
cmp_complex_appr	2238698
fujiwara_bound	2271944
checkbound	2354862
refine_H	2460443
scalepol	4289345
mygprec_absolute	4340532
_mp_mul	4374559
logmax_modulus	4450841
splitpoleval	5235751
bkeval_single_power	5235888
newton_polygon	5507208
X2XP1	5990347
_mp_sqr	6298281
dblexp	6548951
quicktofp	6979525
RgX_gtofp_bit	7031650
abs_update	8005281
mydbllogr	9546795
homothetie2n	9957709
_gen_nored	11203638
eval_rel_pol	13138131
fft	14159002
_gen_one	14473386
ZX_to_ZiX	16456160
pol_to_gaussint	17588981
_mp_add	24662879
_mp_cmul	34767952
myshiftrc	35506135
homothetie_gauss	36495946
lower_bound	40955094
findpower	40959580
graeffe	49506555
mydbllog2r	56182357
mygprec	63757807
ZiX_sqr	99026145
myshiftic	135826359
mygprecrc	215190263
mydbllog2i	226434615
dbllog2	302110798

Generated by: LCOV version 1.16