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: 2025-05-31 09:20:01 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	22682
polrootsbound_i	27109
polrootsbound	27116
RgX_normalize1	35703
ZX_realroots_irred	48351
realroots	50613
ZX_sturm_irred	116349
ZX_sturm_i	120084
polsolve	165663
split_pols	165670
splitcauchy	165681
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266757
QX_complex_roots	289558
_gen_zero	323549
fix_roots1	393862
conformal_mapping	467750
split_1	467750
split_0_1	468071
split_0_2	468072
split_2	493566
logradius	493568
update_radius	493568
optimize_split	493569
parameters	493569
split_fromU	493569
split_0	493894
refine_F	501950
dft	501958
all_roots	529148
clean_roots	529191
a_posteriori_errors	530188
fix_roots	530194
mygprec_special	530196
logmodulus	606079
logpre_modulus	606079
abs_update_r	777908
ZX_sturmpart	876192
ind_maxlog2	901887
check_ab	926805
isexactscalar	931280
usp	936395
isreal	961318
initdft	995527
dual_modulus	1011640
ZX_Uspensky	1058768
fujiwara_bound_real	1148866
tocomplex	1199976
isvalidcoeff	1227233
conformal_basecase	1403358
conformal_pol	1403479
split_complete	1517974
append_clone	1601605
homothetie	1608602
logmin_modulus	1614067
checkbound	1850737
root_error	1897263
ZX_rescale2prim	1934432
fujiwara_bound	2005196
mygprecrc_special	2159156
cmp_complex_appr	2229113
refine_H	2458899
scalepol	4287113
mygprec_absolute	4296367
_mp_mul	4360559
logmax_modulus	4448358
splitpoleval	5195416
bkeval_single_power	5195663
X2XP1	5198398
newton_polygon	5501091
_mp_sqr	6273729
quicktofp	6444202
dblexp	6544720
RgX_gtofp_bit	7017621
abs_update	7999799
mydbllogr	9540754
homothetie2n	9949092
_gen_nored	11121252
eval_rel_pol	13126850
fft	14144412
_gen_one	14369684
ZX_to_ZiX	16453651
pol_to_gaussint	17575188
_mp_add	24575137
_mp_cmul	34597418
myshiftrc	35480512
homothetie_gauss	36477799
lower_bound	40934168
findpower	40935131
graeffe	49473961
mydbllog2r	56091850
mygprec	63672576
ZiX_sqr	98973480
myshiftic	135700613
mygprecrc	214922318
mydbllog2i	224223428
dbllog2	300319993

Generated by: LCOV version 1.16