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 30381-2cde8c54db) Lines: 1467 1530 95.9 % Date: 2025-07-09 09:23:19 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	7023566
RgX_normalize1	35885
X2XP1	5990490
ZX_Uspensky	1313878
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15273
ZX_graeffe	5383
ZX_realroots_irred	48620
ZX_rescale2prim	2233860
ZX_sturm	6395
ZX_sturm_i	123157
ZX_sturm_irred	116762
ZX_sturmpart	1128270
ZX_to_ZiX	16452735
ZiX_sqr	99015204
_gen_nored	11174909
_gen_one	14442785
_gen_zero	326003
_intervalcmp	0
_mp_add	24652475
_mp_cmul	34728090
_mp_mul	4373464
_mp_sqr	6291913
_mp_sub	0
_sqrtnr	22707
a_posteriori_errors	530660
abs_update	8003211
abs_update_r	778449
all_roots	529608
append_clone	1603049
bkeval_single_power	5223619
check_ab	1178897
checkbound	2354924
checkvalidpol	266939
clean_roots	529655
cleanroots	231644
cmp_complex_appr	2231710
conformal_basecase	1403467
conformal_mapping	467784
conformal_pol	1403587
dblexp	6547357
dbllog2	302607870
dft	502218
dual_modulus	1012162
eval_rel_pol	13134961
fft	14157057
fft2	7462
findpower	40947843
fix_roots	530654
fix_roots1	394084
fujiwara_bound	2265112
fujiwara_bound_real	1406866
graeffe	49497074
homothetie	1609665
homothetie2n	9955197
homothetie_gauss	36489267
ind_maxlog2	902386
initdft	996048
isexactpol	239634
isexactscalar	931280
isreal	961613
isvalidcoeff	1229669
logmax_modulus	4449673
logmin_modulus	1614346
logmodulus	606613
logpre_modulus	606616
logradius	493827
lower_bound	40946109
mydbllog2i	226325678
mydbllog2r	56779503
mydbllogr	9543961
mygprec	63699712
mygprec_absolute	4300440
mygprec_special	530663
mygprecrc	214991803
mygprecrc_special	2161080
myshiftic	135793630
myshiftrc	35499903
newton_polygon	5505934
optimize_split	493830
parameters	493828
pol_to_gaussint	17584672
polgraeffe	14
polmod_to_embed	84
polrootsbound	27298
polrootsbound_i	27291
polsolve	166625
quicktofp	6961226
realroots	50627
refine_F	502217
refine_H	2459749
root_error	1899217
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4288092
scalepol2n	0
sol_ok	3378
solve_exact_pol	231040
split_0	494152
split_0_1	468108
split_0_2	468108
split_1	467784
split_2	493831
split_complete	1518956
split_fromU	493830
split_pols	166626
splitcauchy	166637
splitpoleval	5223734
tocomplex	1201029
update_radius	493830
usp	1126026

Generated by: LCOV version 1.16