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 30425-4669acb345) Lines: 1467 1530 95.9 % Date: 2025-07-30 09:23:31 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	290022
RgX_gtofp_bit	7024741
RgX_normalize1	35887
X2XP1	5990346
ZX_Uspensky	1313924
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15275
ZX_graeffe	5383
ZX_realroots_irred	48624
ZX_rescale2prim	2233749
ZX_sturm	6395
ZX_sturm_i	123155
ZX_sturm_irred	116760
ZX_sturmpart	1128313
ZX_to_ZiX	16457993
ZiX_sqr	99037434
_gen_nored	11175289
_gen_one	14442528
_gen_zero	325992
_intervalcmp	0
_mp_add	24652874
_mp_cmul	34726401
_mp_mul	4373499
_mp_sqr	6291927
_mp_sub	0
_sqrtnr	22710
a_posteriori_errors	530774
abs_update	8004873
abs_update_r	778627
all_roots	529722
append_clone	1603384
bkeval_single_power	5223707
check_ab	1178939
checkbound	2355010
checkvalidpol	267053
clean_roots	529771
cleanroots	231756
cmp_complex_appr	2232072
conformal_basecase	1403850
conformal_mapping	467909
conformal_pol	1403969
dblexp	6548833
dbllog2	302676753
dft	502347
dual_modulus	1012430
eval_rel_pol	13137716
fft	14158928
fft2	7462
findpower	40957947
fix_roots	530773
fix_roots1	394200
fujiwara_bound	2265321
fujiwara_bound_real	1406909
graeffe	49507976
homothetie	1610035
homothetie2n	9957361
homothetie_gauss	36498825
ind_maxlog2	902654
initdft	996306
isexactpol	239746
isexactscalar	931728
isreal	961869
isvalidcoeff	1230123
logmax_modulus	4450901
logmin_modulus	1614829
logmodulus	606718
logpre_modulus	606720
logradius	493956
lower_bound	40957027
mydbllog2i	226379897
mydbllog2r	56786784
mydbllogr	9546117
mygprec	63713806
mygprec_absolute	4301019
mygprec_special	530776
mygprecrc	215031579
mygprecrc_special	2161525
myshiftic	135824515
myshiftrc	35506436
newton_polygon	5506874
optimize_split	493958
parameters	493957
pol_to_gaussint	17588564
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166631
quicktofp	6961851
realroots	50627
refine_F	502343
refine_H	2460309
root_error	1899554
roots	8018
roots_aux	239774
roots_com	239746
rootsdeg0	42
scalepol	4289252
scalepol2n	0
sol_ok	3378
solve_exact_pol	231152
split_0	494284
split_0_1	468231
split_0_2	468232
split_1	467910
split_2	493956
split_complete	1519330
split_fromU	493958
split_pols	166632
splitcauchy	166639
splitpoleval	5223747
tocomplex	1201121
update_radius	493959
usp	1126035

Generated by: LCOV version 1.16