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: 1467 1530 95.9 % Date: 2025-11-22 09:22:46 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	5390
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15275
_sqrtnr	22710
polrootsbound_i	27291
polrootsbound	27298
RgX_normalize1	35899
ZX_realroots_irred	48655
realroots	50627
ZX_sturm_irred	116776
ZX_sturm_i	123171
polsolve	166719
split_pols	166722
splitcauchy	166727
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267058
QX_complex_roots	296410
_gen_zero	326144
fix_roots1	398467
conformal_mapping	467930
split_1	467930
split_0_1	468291
split_0_2	468291
logradius	493977
update_radius	493980
parameters	493981
split_2	493981
split_fromU	493983
optimize_split	493984
split_0	494344
refine_F	502367
dft	502374
all_roots	536118
clean_roots	536171
a_posteriori_errors	537222
fix_roots	537226
mygprec_special	537228
logpre_modulus	606757
logmodulus	606762
abs_update_r	778660
ind_maxlog2	902673
isexactscalar	931714
isreal	961912
initdft	996356
dual_modulus	1012465
usp	1126069
ZX_sturmpart	1128265
check_ab	1178892
tocomplex	1213970
isvalidcoeff	1230229
ZX_Uspensky	1313911
conformal_basecase	1403905
conformal_pol	1404025
fujiwara_bound_real	1406933
split_complete	1525907
homothetie	1610104
append_clone	1614186
logmin_modulus	1614841
root_error	1912575
mygprecrc_special	2179191
ZX_rescale2prim	2233878
cmp_complex_appr	2238554
fujiwara_bound	2271791
checkbound	2354916
refine_H	2460501
scalepol	4289431
mygprec_absolute	4339989
_mp_mul	4374497
logmax_modulus	4451023
splitpoleval	5235682
bkeval_single_power	5235904
newton_polygon	5507254
X2XP1	5990586
_mp_sqr	6298407
dblexp	6549167
quicktofp	6979213
RgX_gtofp_bit	7031630
abs_update	8005275
mydbllogr	9546871
homothetie2n	9957889
_gen_nored	11199456
eval_rel_pol	13138368
fft	14159214
_gen_one	14473264
ZX_to_ZiX	16460006
pol_to_gaussint	17589306
_mp_add	24659330
_mp_cmul	34760870
myshiftrc	35507762
homothetie_gauss	36498410
lower_bound	40955101
findpower	40957192
graeffe	49505958
mydbllog2r	56184830
mygprec	63758778
ZiX_sqr	99037679
myshiftic	135794609
mygprecrc	215202983
mydbllog2i	226418349
dbllog2	302076558

Generated by: LCOV version 1.16