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 30365-beea1ff998) Lines: 1467 1530 95.9 % Date: 2025-07-02 09:21:24 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	3378
ZX_graeffe	5383
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15274
_sqrtnr	22709
polrootsbound_i	27293
polrootsbound	27299
RgX_normalize1	35887
ZX_realroots_irred	48624
realroots	50627
ZX_sturm_irred	116759
ZX_sturm_i	123154
split_pols	166632
polsolve	166634
splitcauchy	166638
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266941
QX_complex_roots	290019
_gen_zero	325972
fix_roots1	394079
conformal_mapping	467771
split_1	467774
split_0_1	468094
split_0_2	468094
logradius	493817
update_radius	493819
parameters	493821
split_2	493821
optimize_split	493822
split_fromU	493822
split_0	494145
dft	502209
refine_F	502210
all_roots	529607
clean_roots	529658
fix_roots	530655
a_posteriori_errors	530659
mygprec_special	530663
logmodulus	606591
logpre_modulus	606594
abs_update_r	778435
ind_maxlog2	902406
isexactscalar	931280
isreal	961596
initdft	996032
dual_modulus	1012156
usp	1125946
ZX_sturmpart	1128205
check_ab	1178832
tocomplex	1201016
isvalidcoeff	1229675
ZX_Uspensky	1313819
conformal_basecase	1403433
conformal_pol	1403552
fujiwara_bound_real	1406796
split_complete	1518930
append_clone	1603018
homothetie	1609625
logmin_modulus	1614317
root_error	1899213
mygprecrc_special	2161049
cmp_complex_appr	2231713
ZX_rescale2prim	2233696
fujiwara_bound	2265034
checkbound	2354794
refine_H	2459702
scalepol	4288032
mygprec_absolute	4300420
_mp_mul	4373512
logmax_modulus	4449574
bkeval_single_power	5223181
splitpoleval	5223367
newton_polygon	5505714
X2XP1	5990127
_mp_sqr	6291821
dblexp	6547129
quicktofp	6960905
RgX_gtofp_bit	7023276
abs_update	8003081
mydbllogr	9544052
homothetie2n	9954880
_gen_nored	11176647
eval_rel_pol	13134421
fft	14156680
_gen_one	14442014
ZX_to_ZiX	16450269
pol_to_gaussint	17584231
_mp_add	24650972
_mp_cmul	34729004
myshiftrc	35497744
homothetie_gauss	36483397
lower_bound	40942227
findpower	40942412
graeffe	49490567
mydbllog2r	56776200
mygprec	63697326
ZiX_sqr	98996499
myshiftic	135776907
mygprecrc	214975256
mydbllog2i	224278593
dbllog2	300556329

Generated by: LCOV version 1.16