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 30552-d1d0643eee) Lines: 1468 1530 95.9 % Date: 2025-11-23 09:22:56 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296414
RgX_gtofp_bit	7031643
RgX_normalize1	35900
X2XP1	5990719
ZX_Uspensky	1313966
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15274
ZX_graeffe	5390
ZX_realroots_irred	48654
ZX_rescale2prim	2233926
ZX_sturm	6395
ZX_sturm_i	123171
ZX_sturm_irred	116776
ZX_sturmpart	1128323
ZX_to_ZiX	16461618
ZiX_sqr	99036160
_gen_nored	11200461
_gen_one	14473282
_gen_zero	326148
_intervalcmp	0
_mp_add	24659776
_mp_cmul	34760580
_mp_mul	4374500
_mp_sqr	6298415
_mp_sub	0
_sqrtnr	22709
a_posteriori_errors	537223
abs_update	8005416
abs_update_r	778656
all_roots	536117
append_clone	1614177
bkeval_single_power	5235854
check_ab	1178951
checkbound	2355032
checkvalidpol	267059
clean_roots	536168
cleanroots	231763
cmp_complex_appr	2238523
conformal_basecase	1403919
conformal_mapping	467935
conformal_pol	1404037
dblexp	6549224
dbllog2	302084781
dft	502376
dual_modulus	1012484
eval_rel_pol	13138448
fft	14160005
fft2	7462
findpower	40957045
fix_roots	537217
fix_roots1	398464
fujiwara_bound	2271859
fujiwara_bound_real	1406997
graeffe	49507640
homothetie	1610130
homothetie2n	9957991
homothetie_gauss	36499532
ind_maxlog2	902694
initdft	996363
isexactpol	239753
isexactscalar	931714
isreal	961925
isvalidcoeff	1230230
logmax_modulus	4451085
logmin_modulus	1614865
logmodulus	606764
logpre_modulus	606765
logradius	493989
lower_bound	40955566
mydbllog2i	226421479
mydbllog2r	56185184
mydbllogr	9547088
mygprec	63759212
mygprec_absolute	4339984
mygprec_special	537227
mygprecrc	215206912
mygprecrc_special	2179186
myshiftic	135801749
myshiftrc	35507765
newton_polygon	5507232
optimize_split	493988
parameters	493988
pol_to_gaussint	17589496
polgraeffe	14
polmod_to_embed	84
polrootsbound	27299
polrootsbound_i	27292
polsolve	166725
quicktofp	6979301
realroots	50627
refine_F	502373
refine_H	2460523
root_error	1912579
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4289489
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494352
split_0_1	468299
split_0_2	468299
split_1	467937
split_2	493988
split_complete	1525924
split_fromU	493988
split_pols	166720
splitcauchy	166730
splitpoleval	5235794
tocomplex	1213961
update_radius	493987
usp	1126106

Generated by: LCOV version 1.16