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 30209-fa4743ed68) Lines: 1467 1530 95.9 % Date: 2025-04-25 09:18:24 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	15210
_sqrtnr	22644
polrootsbound_i	27034
polrootsbound	27041
RgX_normalize1	35628
ZX_realroots_irred	48307
realroots	50613
ZX_sturm_irred	116279
ZX_sturm_i	120014
polsolve	165653
split_pols	165656
splitcauchy	165665
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266682
QX_complex_roots	289487
_gen_zero	323616
fix_roots1	393857
conformal_mapping	467735
split_1	467736
split_0_1	468056
split_0_2	468056
logradius	493538
split_2	493543
update_radius	493543
optimize_split	493544
parameters	493544
split_fromU	493544
split_0	493866
refine_F	501928
dft	501929
all_roots	529078
clean_roots	529126
fix_roots	530126
a_posteriori_errors	530129
mygprec_special	530130
logpre_modulus	606024
logmodulus	606026
abs_update_r	777863
ZX_sturmpart	876860
ind_maxlog2	901862
check_ab	927474
isexactscalar	931280
usp	936945
isreal	961279
initdft	995473
dual_modulus	1011602
ZX_Uspensky	1059404
fujiwara_bound_real	1149500
tocomplex	1199238
isvalidcoeff	1226651
conformal_basecase	1403311
conformal_pol	1403433
split_complete	1517851
append_clone	1601477
homothetie	1608538
logmin_modulus	1614020
checkbound	1852077
root_error	1896461
ZX_rescale2prim	1935608
fujiwara_bound	2005635
mygprecrc_special	2158977
cmp_complex_appr	2226089
refine_H	2458789
scalepol	4286955
mygprec_absolute	4294068
_mp_mul	4360508
logmax_modulus	4448102
splitpoleval	5195386
bkeval_single_power	5195732
X2XP1	5201275
newton_polygon	5500635
_mp_sqr	6273358
quicktofp	6445072
dblexp	6544441
RgX_gtofp_bit	7017082
abs_update	7999302
mydbllogr	9540150
homothetie2n	9948438
_gen_nored	11124098
eval_rel_pol	13126183
fft	14143085
_gen_one	14370329
ZX_to_ZiX	16453685
pol_to_gaussint	17574229
_mp_add	24575873
_mp_cmul	34602175
myshiftrc	35478300
homothetie_gauss	36476534
findpower	40932826
lower_bound	40933301
graeffe	49473369
mydbllog2r	55919074
mygprec	63635090
ZiX_sqr	98971843
myshiftic	135732711
mygprecrc	214800808
mydbllog2i	224211662
dbllog2	300142338

Generated by: LCOV version 1.16