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 30213-f9b05da6c0) Lines: 1467 1530 95.9 % Date: 2025-04-26 09:18:30 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	289538
RgX_gtofp_bit	7017529
RgX_normalize1	35649
X2XP1	5201873
ZX_Uspensky	1059467
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15209
ZX_graeffe	5383
ZX_realroots_irred	48305
ZX_rescale2prim	1935824
ZX_sturm	3735
ZX_sturm_i	120034
ZX_sturm_irred	116299
ZX_sturmpart	876911
ZX_to_ZiX	16451975
ZiX_sqr	98969354
_gen_nored	11121182
_gen_one	14369686
_gen_zero	323627
_intervalcmp	0
_mp_add	24575032
_mp_cmul	34597343
_mp_mul	4360531
_mp_sqr	6273314
_mp_sub	0
_sqrtnr	22644
a_posteriori_errors	530175
abs_update	7999428
abs_update_r	777901
all_roots	529129
append_clone	1601595
bkeval_single_power	5195335
check_ab	927524
checkbound	1852178
checkvalidpol	266703
clean_roots	529169
cleanroots	231644
cmp_complex_appr	2226201
conformal_basecase	1403317
conformal_mapping	467733
conformal_pol	1403437
dblexp	6544647
dbllog2	300145519
dft	501949
dual_modulus	1011629
eval_rel_pol	13126629
fft	14144312
fft2	7462
findpower	40931638
fix_roots	530171
fix_roots1	393870
fujiwara_bound	2005773
fujiwara_bound_real	1149579
graeffe	49474209
homothetie	1608586
homothetie2n	9948794
homothetie_gauss	36475535
ind_maxlog2	901872
initdft	995506
isexactpol	239634
isexactscalar	931280
isreal	961290
isvalidcoeff	1226826
logmax_modulus	4448172
logmin_modulus	1614016
logmodulus	606072
logpre_modulus	606068
logradius	493551
lower_bound	40931892
mydbllog2i	224215681
mydbllog2r	55920702
mydbllogr	9540316
mygprec	63635735
mygprec_absolute	4294505
mygprec_special	530180
mygprecrc	214805871
mygprecrc_special	2159138
myshiftic	135714194
myshiftrc	35480080
newton_polygon	5501009
optimize_split	493558
parameters	493558
pol_to_gaussint	17574744
polgraeffe	14
polmod_to_embed	84
polrootsbound	27062
polrootsbound_i	27055
polsolve	165666
quicktofp	6445521
realroots	50613
refine_F	501944
refine_H	2458823
root_error	1896615
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4286966
scalepol2n	0
sol_ok	3350
solve_exact_pol	231040
split_0	493881
split_0_1	468055
split_0_2	468056
split_1	467734
split_2	493556
split_complete	1517939
split_fromU	493558
split_pols	165658
splitcauchy	165666
splitpoleval	5195034
tocomplex	1199369
update_radius	493556
usp	937041

Generated by: LCOV version 1.16