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 30390-1de8c4c561) Lines: 1467 1530 95.9 % Date: 2025-07-13 09:22:39 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	290019
RgX_gtofp_bit	7023335
RgX_normalize1	35887
X2XP1	5990341
ZX_Uspensky	1313924
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15274
ZX_graeffe	5383
ZX_realroots_irred	48623
ZX_rescale2prim	2233780
ZX_sturm	6395
ZX_sturm_i	123157
ZX_sturm_irred	116762
ZX_sturmpart	1128315
ZX_to_ZiX	16453497
ZiX_sqr	99009806
_gen_nored	11175120
_gen_one	14443270
_gen_zero	325983
_intervalcmp	0
_mp_add	24649491
_mp_cmul	34727121
_mp_mul	4373469
_mp_sqr	6291937
_mp_sub	0
_sqrtnr	22709
a_posteriori_errors	530659
abs_update	8003613
abs_update_r	778435
all_roots	529607
append_clone	1603030
bkeval_single_power	5223821
check_ab	1178942
checkbound	2355012
checkvalidpol	266941
clean_roots	529654
cleanroots	231644
cmp_complex_appr	2231673
conformal_basecase	1403460
conformal_mapping	467780
conformal_pol	1403579
dblexp	6547265
dbllog2	302592036
dft	502220
dual_modulus	1012174
eval_rel_pol	13134729
fft	14157255
fft2	7462
findpower	40945401
fix_roots	530652
fix_roots1	394079
fujiwara_bound	2265161
fujiwara_bound_real	1406914
graeffe	49492627
homothetie	1609643
homothetie2n	9955055
homothetie_gauss	36489005
ind_maxlog2	902422
initdft	996049
isexactpol	239634
isexactscalar	931280
isreal	961612
isvalidcoeff	1229675
logmax_modulus	4449672
logmin_modulus	1614355
logmodulus	606597
logpre_modulus	606597
logradius	493829
lower_bound	40945677
mydbllog2i	226315597
mydbllog2r	56779165
mydbllogr	9544623
mygprec	63699516
mygprec_absolute	4300340
mygprec_special	530661
mygprecrc	214988188
mygprecrc_special	2161048
myshiftic	135769296
myshiftrc	35498294
newton_polygon	5505750
optimize_split	493831
parameters	493827
pol_to_gaussint	17584451
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166628
quicktofp	6961186
realroots	50627
refine_F	502218
refine_H	2459731
root_error	1899210
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4288062
scalepol2n	0
sol_ok	3378
solve_exact_pol	231040
split_0	494155
split_0_1	468102
split_0_2	468103
split_1	467782
split_2	493828
split_complete	1518966
split_fromU	493831
split_pols	166630
splitcauchy	166641
splitpoleval	5223433
tocomplex	1200996
update_radius	493829
usp	1126009

Generated by: LCOV version 1.16