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 30111-a34de28cf8) Lines: 1467 1530 95.9 % Date: 2025-04-02 09:20:49 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	3350
ZX_sturm	3735
ZX_graeffe	5383
fft2	7462
roots	8018
ZX_deg1root	15212
_sqrtnr	22647
polrootsbound_i	27034
polrootsbound	27040
RgX_normalize1	35628
ZX_realroots_irred	48308
realroots	50613
ZX_sturm_irred	116277
ZX_sturm_i	120012
polsolve	165650
split_pols	165660
splitcauchy	165667
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266682
QX_complex_roots	289495
_gen_zero	323607
fix_roots1	393860
conformal_mapping	467736
split_1	467739
split_0_1	468061
split_0_2	468061
split_2	493543
logradius	493545
optimize_split	493547
split_fromU	493547
parameters	493548
update_radius	493548
split_0	493871
refine_F	501932
dft	501938
all_roots	529082
clean_roots	529128
fix_roots	530129
a_posteriori_errors	530131
mygprec_special	530134
logmodulus	606042
logpre_modulus	606044
abs_update_r	777868
ZX_sturmpart	876868
ind_maxlog2	901847
check_ab	927481
isexactscalar	931280
usp	936936
isreal	961286
initdft	995483
dual_modulus	1011595
ZX_Uspensky	1059409
fujiwara_bound_real	1149501
tocomplex	1199255
isvalidcoeff	1226651
conformal_basecase	1403324
conformal_pol	1403442
split_complete	1517868
append_clone	1601509
homothetie	1608547
logmin_modulus	1614023
checkbound	1852092
root_error	1896476
ZX_rescale2prim	1935644
fujiwara_bound	2005640
mygprecrc_special	2159010
cmp_complex_appr	2226099
refine_H	2458827
scalepol	4286966
mygprec_absolute	4294161
_mp_mul	4360547
logmax_modulus	4448179
splitpoleval	5195105
bkeval_single_power	5195401
X2XP1	5201439
newton_polygon	5500816
_mp_sqr	6273408
quicktofp	6445113
dblexp	6544561
RgX_gtofp_bit	7017319
abs_update	7999088
mydbllogr	9539709
homothetie2n	9948658
_gen_nored	11120694
eval_rel_pol	13126373
fft	14143299
_gen_one	14370136
ZX_to_ZiX	16453323
pol_to_gaussint	17574544
_mp_add	24575648
_mp_cmul	34597937
myshiftrc	35479285
homothetie_gauss	36479875
lower_bound	40933146
findpower	40934038
graeffe	49475897
mydbllog2r	55920164
mygprec	63634939
ZiX_sqr	98973629
myshiftic	135737244
mygprecrc	214807182
mydbllog2i	224241879
dbllog2	300173438

Generated by: LCOV version 1.16