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 30316-0578a48613) Lines: 1467 1530 95.9 % Date: 2025-06-04 09:19:51 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	15247
_sqrtnr	22681
polrootsbound_i	27109
polrootsbound	27116
RgX_normalize1	35703
ZX_realroots_irred	48350
realroots	50613
ZX_sturm_irred	116348
ZX_sturm_i	120083
split_pols	165670
polsolve	165673
splitcauchy	165681
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266757
QX_complex_roots	289562
_gen_zero	323553
fix_roots1	393864
conformal_mapping	467746
split_1	467749
split_0_1	468073
split_0_2	468073
logradius	493567
parameters	493572
update_radius	493572
split_fromU	493573
optimize_split	493574
split_2	493574
split_0	493897
refine_F	501957
dft	501962
all_roots	529151
clean_roots	529197
a_posteriori_errors	530191
fix_roots	530192
mygprec_special	530200
logpre_modulus	606079
logmodulus	606083
abs_update_r	777908
ZX_sturmpart	876232
ind_maxlog2	901910
check_ab	926845
isexactscalar	931280
usp	936390
isreal	961321
initdft	995535
dual_modulus	1011656
ZX_Uspensky	1058807
fujiwara_bound_real	1148908
tocomplex	1199986
isvalidcoeff	1227233
conformal_basecase	1403363
conformal_pol	1403483
split_complete	1517987
append_clone	1601619
homothetie	1608613
logmin_modulus	1614090
checkbound	1850819
root_error	1897282
ZX_rescale2prim	1934392
fujiwara_bound	2005247
mygprecrc_special	2159169
cmp_complex_appr	2229145
refine_H	2458915
scalepol	4287133
mygprec_absolute	4296399
_mp_mul	4360491
logmax_modulus	4448396
splitpoleval	5195511
bkeval_single_power	5195630
X2XP1	5198340
newton_polygon	5501139
_mp_sqr	6273729
quicktofp	6444298
dblexp	6544741
RgX_gtofp_bit	7017682
abs_update	7999515
mydbllogr	9540494
homothetie2n	9949137
_gen_nored	11121757
eval_rel_pol	13126920
fft	14144237
_gen_one	14370641
ZX_to_ZiX	16454224
pol_to_gaussint	17575360
_mp_add	24575242
_mp_cmul	34598158
myshiftrc	35480720
homothetie_gauss	36478446
lower_bound	40934646
findpower	40935548
graeffe	49475455
mydbllog2r	56092256
mygprec	63672913
ZiX_sqr	98974719
myshiftic	135707134
mygprecrc	214921433
mydbllog2i	224226123
dbllog2	300324212

Generated by: LCOV version 1.16