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 30368-f792e9816c) Lines: 1467 1530 95.9 % Date: 2025-07-04 09:22:57 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	27293
polrootsbound	27300
RgX_normalize1	35887
ZX_realroots_irred	48623
realroots	50627
ZX_sturm_irred	116760
ZX_sturm_i	123155
polsolve	166627
split_pols	166629
splitcauchy	166640
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266941
QX_complex_roots	290016
_gen_zero	325991
fix_roots1	394085
conformal_mapping	467785
split_1	467787
split_0_1	468111
split_0_2	468111
logradius	493832
parameters	493833
split_2	493833
update_radius	493834
optimize_split	493835
split_fromU	493835
split_0	494157
refine_F	502217
dft	502225
all_roots	529608
clean_roots	529652
fix_roots	530654
a_posteriori_errors	530655
mygprec_special	530659
logmodulus	606599
logpre_modulus	606605
abs_update_r	778410
ind_maxlog2	902409
isexactscalar	931280
isreal	961621
initdft	996059
dual_modulus	1012180
usp	1125927
ZX_sturmpart	1128222
check_ab	1178849
tocomplex	1200998
isvalidcoeff	1229675
ZX_Uspensky	1313829
conformal_basecase	1403483
conformal_pol	1403600
fujiwara_bound_real	1406814
split_complete	1518965
append_clone	1603027
homothetie	1609663
logmin_modulus	1614396
root_error	1899194
mygprecrc_special	2161060
cmp_complex_appr	2231716
ZX_rescale2prim	2233632
fujiwara_bound	2265051
checkbound	2354828
refine_H	2459792
scalepol	4288128
mygprec_absolute	4300429
_mp_mul	4373400
logmax_modulus	4449772
splitpoleval	5223734
bkeval_single_power	5223988
newton_polygon	5505859
X2XP1	5990023
_mp_sqr	6291997
dblexp	6547329
quicktofp	6960932
RgX_gtofp_bit	7023457
abs_update	8003914
mydbllogr	9544706
homothetie2n	9955276
_gen_nored	11176121
eval_rel_pol	13135047
fft	14157615
_gen_one	14443671
ZX_to_ZiX	16457913
pol_to_gaussint	17584820
_mp_add	24651182
_mp_cmul	34728347
myshiftrc	35499101
homothetie_gauss	36491908
lower_bound	40948133
findpower	40949003
graeffe	49496144
mydbllog2r	56780350
mygprec	63700930
ZiX_sqr	99017948
myshiftic	135776009
mygprecrc	215010635
mydbllog2i	224326500
dbllog2	300608009

Generated by: LCOV version 1.16