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: 2025-12-08 09:22:00 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	27300
polrootsbound	27307
RgX_normalize1	35908
ZX_realroots_irred	48653
realroots	50627
ZX_sturm_irred	116803
ZX_sturm_i	123198
polsolve	166719
split_pols	166720
splitcauchy	166726
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267067
QX_complex_roots	296481
_gen_zero	326142
fix_roots1	398485
split_1	467925
conformal_mapping	467927
split_0_1	468289
split_0_2	468290
split_2	493975
logradius	493977
update_radius	493979
parameters	493981
optimize_split	493982
split_fromU	493982
split_0	494344
refine_F	502367
dft	502370
all_roots	536190
clean_roots	536232
fix_roots	537291
a_posteriori_errors	537293
mygprec_special	537295
logmodulus	606763
logpre_modulus	606764
abs_update_r	778677
ind_maxlog2	902690
isexactscalar	931714
isreal	961904
initdft	996351
dual_modulus	1012463
usp	1126043
ZX_sturmpart	1128147
check_ab	1178774
tocomplex	1214158
isvalidcoeff	1230270
ZX_Uspensky	1313814
conformal_basecase	1403891
conformal_pol	1404010
fujiwara_bound_real	1406858
split_complete	1525968
homothetie	1610116
append_clone	1614300
logmin_modulus	1614799
root_error	1912775
mygprecrc_special	2179376
ZX_rescale2prim	2233761
cmp_complex_appr	2238713
fujiwara_bound	2271851
checkbound	2354679
refine_H	2460479
scalepol	4289412
mygprec_absolute	4340566
_mp_mul	4374500
logmax_modulus	4450940
splitpoleval	5235651
bkeval_single_power	5235869
newton_polygon	5507253
X2XP1	5990475
_mp_sqr	6298171
dblexp	6549081
quicktofp	6979367
RgX_gtofp_bit	7031705
abs_update	8005347
mydbllogr	9546788
homothetie2n	9957897
_gen_nored	11202219
eval_rel_pol	13138374
fft	14159690
_gen_one	14473097
ZX_to_ZiX	16455494
pol_to_gaussint	17589228
_mp_add	24662518
_mp_cmul	34767432
myshiftrc	35507112
homothetie_gauss	36498169
findpower	40955867
lower_bound	40956114
graeffe	49506738
mydbllog2r	56183255
mygprec	63758276
ZiX_sqr	99030291
myshiftic	135825878
mygprecrc	215186063
mydbllog2i	226432520
dbllog2	302102886

Generated by: LCOV version 1.16