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

Generated by: LCOV version 1.16