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 30587-f85873d515) Lines: 1467 1530 95.9 % Date: 2025-12-28 09:21:53 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	5390
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15198
_sqrtnr	22590
polrootsbound_i	27125
polrootsbound	27132
RgX_normalize1	35733
ZX_realroots_irred	48557
realroots	50627
ZX_sturm_irred	116577
ZX_sturm_i	122972
polsolve	166677
split_pols	166685
splitcauchy	166689
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	266892
QX_complex_roots	296164
_gen_zero	325941
fix_roots1	398347
conformal_mapping	467780
split_1	467782
split_0_1	468145
split_0_2	468145
update_radius	493830
logradius	493832
split_2	493834
parameters	493835
optimize_split	493836
split_fromU	493836
split_0	494198
refine_F	502218
dft	502226
all_roots	535868
clean_roots	535916
fix_roots	536972
a_posteriori_errors	536973
mygprec_special	536978
logpre_modulus	606533
logmodulus	606534
abs_update_r	778517
ind_maxlog2	902423
isexactscalar	931714
isreal	961617
initdft	996062
dual_modulus	1012171
usp	1125876
ZX_sturmpart	1128190
check_ab	1178819
tocomplex	1213140
isvalidcoeff	1228149
ZX_Uspensky	1313683
conformal_basecase	1403458
conformal_pol	1403576
fujiwara_bound_real	1406637
split_complete	1525366
homothetie	1609583
append_clone	1613489
logmin_modulus	1614327
root_error	1911591
mygprecrc_special	2178242
ZX_rescale2prim	2233496
cmp_complex_appr	2237216
fujiwara_bound	2270948
checkbound	2354768
refine_H	2459896
scalepol	4288091
mygprec_absolute	4337324
_mp_mul	4374567
logmax_modulus	4449502
bkeval_single_power	5234979
splitpoleval	5235005
newton_polygon	5505126
X2XP1	5989630
_mp_sqr	6298014
dblexp	6547072
quicktofp	6976639
RgX_gtofp_bit	7028882
abs_update	8003410
mydbllogr	9544385
homothetie2n	9954269
_gen_nored	11200423
eval_rel_pol	13133956
fft	14154452
_gen_one	14471870
ZX_to_ZiX	16449468
pol_to_gaussint	17583406
_mp_add	24660796
_mp_cmul	34763470
myshiftrc	35494495
homothetie_gauss	36485636
lower_bound	40943067
findpower	40943316
graeffe	49492809
mydbllog2r	56170001
mygprec	63740200
ZiX_sqr	99006228
myshiftic	135775444
mygprecrc	215118787
mydbllog2i	226358586
dbllog2	302017843

Generated by: LCOV version 1.16