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 30072-2ccdc2326c) Lines: 1467 1530 95.9 % Date: 2025-03-12 09:19:58 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	289848
RgX_gtofp_bit	7018755
RgX_normalize1	35873
X2XP1	5201779
ZX_Uspensky	1059536
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15308
ZX_graeffe	5383
ZX_realroots_irred	48412
ZX_rescale2prim	1935757
ZX_sturm	3735
ZX_sturm_i	120239
ZX_sturm_irred	116504
ZX_sturmpart	876852
ZX_to_ZiX	16458643
ZiX_sqr	99003023
_gen_nored	11121318
_gen_one	14371802
_gen_zero	323550
_intervalcmp	0
_mp_add	24575684
_mp_cmul	34598984
_mp_mul	4360415
_mp_sqr	6273832
_mp_sub	0
_sqrtnr	22757
a_posteriori_errors	530487
abs_update	8000799
abs_update_r	778000
all_roots	529441
append_clone	1602225
bkeval_single_power	5196074
check_ab	927465
checkbound	1852060
checkvalidpol	266927
clean_roots	529486
cleanroots	231644
cmp_complex_appr	2226977
conformal_basecase	1403609
conformal_mapping	467829
conformal_pol	1403729
dblexp	6545670
dbllog2	300228399
dft	502025
dual_modulus	1011802
eval_rel_pol	13128812
fft	14145173
fft2	7462
findpower	40945204
fix_roots	530486
fix_roots1	394022
fujiwara_bound	2006561
fujiwara_bound_real	1149726
graeffe	49490276
homothetie	1608862
homothetie2n	9950742
homothetie_gauss	36491416
ind_maxlog2	902079
initdft	995661
isexactpol	239634
isexactscalar	931280
isreal	961470
isvalidcoeff	1227645
logmax_modulus	4449327
logmin_modulus	1614381
logmodulus	606145
logpre_modulus	606139
logradius	493636
lower_bound	40943316
mydbllog2i	224282988
mydbllog2r	55929688
mydbllogr	9541814
mygprec	63646941
mygprec_absolute	4296717
mygprec_special	530491
mygprecrc	214854534
mygprecrc_special	2160084
myshiftic	135775079
myshiftrc	35485214
newton_polygon	5501773
optimize_split	493639
parameters	493638
pol_to_gaussint	17578091
polgraeffe	14
polmod_to_embed	84
polrootsbound	27286
polrootsbound_i	27279
polsolve	165678
quicktofp	6447529
realroots	50613
refine_F	502018
refine_H	2459120
root_error	1897505
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4287796
scalepol2n	0
sol_ok	3350
solve_exact_pol	231040
split_0	493961
split_0_1	468149
split_0_2	468147
split_1	467831
split_2	493636
split_complete	1518404
split_fromU	493639
split_pols	165673
splitcauchy	165684
splitpoleval	5195694
tocomplex	1199992
update_radius	493637
usp	937101

Generated by: LCOV version 1.16