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 30387-12623f1693) Lines: 1467 1530 95.9 % Date: 2025-07-10 09:22:50 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	5383
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15275
_sqrtnr	22710
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35887
ZX_realroots_irred	48624
realroots	50627
ZX_sturm_irred	116762
ZX_sturm_i	123157
split_pols	166625
polsolve	166634
splitcauchy	166643
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266941
QX_complex_roots	290027
_gen_zero	325971
fix_roots1	394090
conformal_mapping	467788
split_1	467790
split_0_1	468112
split_0_2	468112
logradius	493840
split_2	493840
optimize_split	493841
parameters	493841
split_fromU	493841
update_radius	493842
split_0	494164
refine_F	502220
dft	502230
all_roots	529611
clean_roots	529662
fix_roots	530662
a_posteriori_errors	530663
mygprec_special	530668
logpre_modulus	606627
logmodulus	606629
abs_update_r	778456
ind_maxlog2	902421
isexactscalar	931280
isreal	961630
initdft	996071
dual_modulus	1012192
usp	1125948
ZX_sturmpart	1128232
check_ab	1178859
tocomplex	1201046
isvalidcoeff	1229675
ZX_Uspensky	1313842
conformal_basecase	1403486
conformal_pol	1403606
fujiwara_bound_real	1406824
split_complete	1518987
append_clone	1603077
homothetie	1609699
logmin_modulus	1614382
root_error	1899244
mygprecrc_special	2161099
cmp_complex_appr	2231787
ZX_rescale2prim	2233550
fujiwara_bound	2265082
checkbound	2354848
refine_H	2459832
scalepol	4288178
mygprec_absolute	4300504
_mp_mul	4373446
logmax_modulus	4449783
splitpoleval	5223527
bkeval_single_power	5223758
newton_polygon	5506067
X2XP1	5989839
_mp_sqr	6291953
dblexp	6547499
quicktofp	6961053
RgX_gtofp_bit	7023704
abs_update	8003660
mydbllogr	9544783
homothetie2n	9955422
_gen_nored	11177337
eval_rel_pol	13135336
fft	14157412
_gen_one	14443327
ZX_to_ZiX	16451784
pol_to_gaussint	17585153
_mp_add	24650715
_mp_cmul	34730885
myshiftrc	35500259
homothetie_gauss	36489727
lower_bound	40947216
findpower	40947404
graeffe	49495080
mydbllog2r	56779135
mygprec	63702148
ZiX_sqr	99017600
myshiftic	135791392
mygprecrc	215001890
mydbllog2i	226321772
dbllog2	302596779

Generated by: LCOV version 1.16