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 30532-0c728fd268) Lines: 1467 1530 95.9 % Date: 2025-10-17 09:22:15 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296412
RgX_gtofp_bit	7031694
RgX_normalize1	35899
X2XP1	5990809
ZX_Uspensky	1313944
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15274
ZX_graeffe	5390
ZX_realroots_irred	48651
ZX_rescale2prim	2233955
ZX_sturm	6395
ZX_sturm_i	123171
ZX_sturm_irred	116776
ZX_sturmpart	1128300
ZX_to_ZiX	16459760
ZiX_sqr	99029265
_gen_nored	11201287
_gen_one	14471252
_gen_zero	326136
_intervalcmp	0
_mp_add	24659917
_mp_cmul	34763939
_mp_mul	4374518
_mp_sqr	6298239
_mp_sub	0
_sqrtnr	22709
a_posteriori_errors	537224
abs_update	8005342
abs_update_r	778660
all_roots	536121
append_clone	1614197
bkeval_single_power	5235503
check_ab	1178928
checkbound	2354985
checkvalidpol	267058
clean_roots	536167
cleanroots	231763
cmp_complex_appr	2238528
conformal_basecase	1403926
conformal_mapping	467935
conformal_pol	1404045
dblexp	6549218
dbllog2	302714298
dft	502376
dual_modulus	1012470
eval_rel_pol	13138425
fft	14159623
fft2	7462
findpower	40958138
fix_roots	537226
fix_roots1	398470
fujiwara_bound	2271834
fujiwara_bound_real	1406980
graeffe	49507161
homothetie	1610111
homothetie2n	9957832
homothetie_gauss	36499435
ind_maxlog2	902684
initdft	996364
isexactpol	239753
isexactscalar	931714
isreal	961920
isvalidcoeff	1230229
logmax_modulus	4451061
logmin_modulus	1614856
logmodulus	606768
logpre_modulus	606756
logradius	493979
lower_bound	40957577
mydbllog2i	226451017
mydbllog2r	56771875
mydbllogr	9546884
mygprec	63758723
mygprec_absolute	4339985
mygprec_special	537230
mygprecrc	215198844
mygprecrc_special	2179202
myshiftic	135809284
myshiftrc	35507559
newton_polygon	5507313
optimize_split	493990
parameters	493989
pol_to_gaussint	17589485
polgraeffe	14
polmod_to_embed	84
polrootsbound	27298
polrootsbound_i	27291
polsolve	166717
quicktofp	6979216
realroots	50627
refine_F	502374
refine_H	2460529
root_error	1912579
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4289497
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494346
split_0_1	468297
split_0_2	468298
split_1	467936
split_2	493985
split_complete	1525919
split_fromU	493990
split_pols	166719
splitcauchy	166729
splitpoleval	5235688
tocomplex	1213981
update_radius	493988
usp	1126119

Generated by: LCOV version 1.16