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: 2025-12-03 09:22:05 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	15273
_sqrtnr	22707
polrootsbound_i	27300
polrootsbound	27307
RgX_normalize1	35908
ZX_realroots_irred	48652
realroots	50627
ZX_sturm_irred	116795
ZX_sturm_i	123190
polsolve	166718
split_pols	166719
splitcauchy	166729
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267067
QX_complex_roots	296483
_gen_zero	326138
fix_roots1	398483
split_1	467918
conformal_mapping	467920
split_0_1	468280
split_0_2	468280
logradius	493970
split_2	493970
update_radius	493971
parameters	493974
optimize_split	493975
split_fromU	493975
split_0	494336
refine_F	502357
dft	502361
all_roots	536190
clean_roots	536233
fix_roots	537289
a_posteriori_errors	537290
mygprec_special	537298
logmodulus	606759
logpre_modulus	606760
abs_update_r	778690
ind_maxlog2	902663
isexactscalar	931714
isreal	961891
initdft	996334
dual_modulus	1012463
usp	1126040
ZX_sturmpart	1128277
check_ab	1178904
tocomplex	1214162
isvalidcoeff	1230270
ZX_Uspensky	1313939
conformal_basecase	1403879
conformal_pol	1403997
fujiwara_bound_real	1406980
split_complete	1525953
homothetie	1610103
append_clone	1614294
logmin_modulus	1614752
root_error	1912774
mygprecrc_special	2179372
ZX_rescale2prim	2233656
cmp_complex_appr	2238709
fujiwara_bound	2271981
checkbound	2354938
refine_H	2460444
scalepol	4289351
mygprec_absolute	4340571
_mp_mul	4374579
logmax_modulus	4450820
splitpoleval	5235619
bkeval_single_power	5235771
newton_polygon	5507252
X2XP1	5990097
_mp_sqr	6298258
dblexp	6548978
quicktofp	6979568
RgX_gtofp_bit	7031680
abs_update	8005097
mydbllogr	9546579
homothetie2n	9957706
_gen_nored	11202621
eval_rel_pol	13138245
fft	14159024
_gen_one	14472900
ZX_to_ZiX	16453142
pol_to_gaussint	17588984
_mp_add	24662116
_mp_cmul	34767251
myshiftrc	35506498
homothetie_gauss	36495801
findpower	40954231
lower_bound	40954386
graeffe	49504812
mydbllog2r	56181589
mygprec	63757776
ZiX_sqr	99027011
myshiftic	135817565
mygprecrc	215176628
mydbllog2i	226419384
dbllog2	302085964

Generated by: LCOV version 1.16