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 30370-b9c4b6d044) Lines: 1467 1530 95.9 % Date: 2025-07-05 09:22:59 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	5383
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15274
_sqrtnr	22709
polrootsbound_i	27291
polrootsbound	27297
RgX_normalize1	35885
ZX_realroots_irred	48623
realroots	50627
ZX_sturm_irred	116761
ZX_sturm_i	123156
split_pols	166632
polsolve	166633
splitcauchy	166637
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266938
QX_complex_roots	290019
_gen_zero	326013
fix_roots1	394080
split_1	467783
conformal_mapping	467784
split_0_1	468107
split_0_2	468107
logradius	493823
update_radius	493825
split_2	493827
optimize_split	493829
parameters	493829
split_fromU	493829
split_0	494150
refine_F	502213
dft	502216
all_roots	529611
clean_roots	529653
fix_roots	530652
a_posteriori_errors	530654
mygprec_special	530659
logmodulus	606590
logpre_modulus	606592
abs_update_r	778399
ind_maxlog2	902408
isexactscalar	931280
isreal	961613
initdft	996043
dual_modulus	1012168
usp	1125930
ZX_sturmpart	1128166
check_ab	1178793
tocomplex	1201002
isvalidcoeff	1229664
ZX_Uspensky	1313774
conformal_basecase	1403465
conformal_pol	1403584
fujiwara_bound_real	1406778
split_complete	1518952
append_clone	1603018
homothetie	1609642
logmin_modulus	1614388
root_error	1899186
mygprecrc_special	2161033
cmp_complex_appr	2231690
ZX_rescale2prim	2233648
fujiwara_bound	2265019
checkbound	2354716
refine_H	2459746
scalepol	4288083
mygprec_absolute	4300385
_mp_mul	4373429
logmax_modulus	4449729
splitpoleval	5223896
bkeval_single_power	5224243
newton_polygon	5505708
X2XP1	5990016
_mp_sqr	6292087
dblexp	6547253
quicktofp	6960961
RgX_gtofp_bit	7023303
abs_update	8003592
mydbllogr	9544467
homothetie2n	9955042
_gen_nored	11177287
eval_rel_pol	13134815
fft	14157150
_gen_one	14443976
ZX_to_ZiX	16457935
pol_to_gaussint	17584512
_mp_add	24652123
_mp_cmul	34730881
myshiftrc	35498418
homothetie_gauss	36493423
lower_bound	40947371
findpower	40948570
graeffe	49498592
mydbllog2r	56780139
mygprec	63700479
ZiX_sqr	99022414
myshiftic	135786300
mygprecrc	215009384
mydbllog2i	224313917
dbllog2	300593753

Generated by: LCOV version 1.16