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 30569-8181146aa1) Lines: 1467 1530 95.9 % Date: 2025-12-04 09:22:12 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	15274
_sqrtnr	22707
polrootsbound_i	27299
polrootsbound	27306
RgX_normalize1	35907
ZX_realroots_irred	48653
realroots	50627
ZX_sturm_irred	116801
ZX_sturm_i	123196
split_pols	166723
polsolve	166727
splitcauchy	166729
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267066
QX_complex_roots	296480
_gen_zero	326136
fix_roots1	398488
split_1	467927
conformal_mapping	467929
split_0_1	468290
split_0_2	468290
logradius	493976
update_radius	493980
parameters	493981
split_2	493981
split_fromU	493982
optimize_split	493983
split_0	494347
refine_F	502367
dft	502369
all_roots	536191
clean_roots	536236
a_posteriori_errors	537296
fix_roots	537297
mygprec_special	537297
logpre_modulus	606771
logmodulus	606772
abs_update_r	778682
ind_maxlog2	902701
isexactscalar	931714
isreal	961906
initdft	996347
dual_modulus	1012476
usp	1125993
ZX_sturmpart	1128199
check_ab	1178826
tocomplex	1214175
isvalidcoeff	1230265
ZX_Uspensky	1313867
conformal_basecase	1403895
conformal_pol	1404015
fujiwara_bound_real	1406912
split_complete	1525984
homothetie	1610137
append_clone	1614318
logmin_modulus	1614812
root_error	1912793
mygprecrc_special	2179374
ZX_rescale2prim	2233597
cmp_complex_appr	2238681
fujiwara_bound	2271905
checkbound	2354784
refine_H	2460490
scalepol	4289421
mygprec_absolute	4340632
_mp_mul	4374573
logmax_modulus	4450964
splitpoleval	5235642
bkeval_single_power	5235858
newton_polygon	5507344
X2XP1	5989970
_mp_sqr	6298227
dblexp	6549070
quicktofp	6979429
RgX_gtofp_bit	7031806
abs_update	8005291
mydbllogr	9546768
homothetie2n	9957917
_gen_nored	11203861
eval_rel_pol	13138497
fft	14159496
_gen_one	14473415
ZX_to_ZiX	16456385
pol_to_gaussint	17589388
_mp_add	24662977
_mp_cmul	34769320
myshiftrc	35507093
homothetie_gauss	36497316
findpower	40955184
lower_bound	40955323
graeffe	49507193
mydbllog2r	56183499
mygprec	63758575
ZiX_sqr	99029803
myshiftic	135821382
mygprecrc	215192866
mydbllog2i	226431706
dbllog2	302103718

Generated by: LCOV version 1.16