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: 2025-12-14 09:22:17 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	22708
polrootsbound_i	27300
polrootsbound	27307
RgX_normalize1	35908
ZX_realroots_irred	48651
realroots	50627
ZX_sturm_irred	116804
ZX_sturm_i	123199
polsolve	166728
split_pols	166728
splitcauchy	166728
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267067
QX_complex_roots	296487
_gen_zero	326165
fix_roots1	398485
conformal_mapping	467920
split_1	467925
split_0_1	468283
split_0_2	468284
logradius	493973
split_2	493975
optimize_split	493977
parameters	493977
split_fromU	493977
update_radius	493978
split_0	494343
refine_F	502364
dft	502368
all_roots	536195
clean_roots	536237
a_posteriori_errors	537291
fix_roots	537294
mygprec_special	537298
logpre_modulus	606763
logmodulus	606765
abs_update_r	778688
ind_maxlog2	902684
isexactscalar	931714
isreal	961902
initdft	996344
dual_modulus	1012464
usp	1126036
ZX_sturmpart	1128186
check_ab	1178813
tocomplex	1214158
isvalidcoeff	1230270
ZX_Uspensky	1313850
conformal_basecase	1403884
conformal_pol	1404004
fujiwara_bound_real	1406890
split_complete	1525979
homothetie	1610114
append_clone	1614304
logmin_modulus	1614774
root_error	1912781
mygprecrc_special	2179374
ZX_rescale2prim	2233723
cmp_complex_appr	2238717
fujiwara_bound	2271894
checkbound	2354756
refine_H	2460460
scalepol	4289388
mygprec_absolute	4340589
_mp_mul	4374538
logmax_modulus	4450901
splitpoleval	5235873
bkeval_single_power	5235890
newton_polygon	5507278
X2XP1	5990275
_mp_sqr	6298231
dblexp	6549063
quicktofp	6979430
RgX_gtofp_bit	7031728
abs_update	8005165
mydbllogr	9546633
homothetie2n	9957838
_gen_nored	11203901
eval_rel_pol	13138346
fft	14159494
_gen_one	14473318
ZX_to_ZiX	16454699
pol_to_gaussint	17589183
_mp_add	24662488
_mp_cmul	34767865
myshiftrc	35507126
homothetie_gauss	36496179
lower_bound	40954894
findpower	40954961
graeffe	49506769
mydbllog2r	56183397
mygprec	63757642
ZiX_sqr	99027683
myshiftic	135825273
mygprecrc	215184628
mydbllog2i	226427694
dbllog2	302105850

Generated by: LCOV version 1.16