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 30580-ef5a862e7f) Lines: 1467 1530 95.9 % Date: 2025-12-19 09:23:05 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296431
RgX_gtofp_bit	7031264
RgX_normalize1	35922
X2XP1	5990278
ZX_Uspensky	1313833
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15289
ZX_graeffe	5390
ZX_realroots_irred	48682
ZX_rescale2prim	2233767
ZX_sturm	6395
ZX_sturm_i	123211
ZX_sturm_irred	116816
ZX_sturmpart	1128151
ZX_to_ZiX	16454186
ZiX_sqr	99037739
_gen_nored	11196615
_gen_one	14471864
_gen_zero	326349
_intervalcmp	0
_mp_add	24657811
_mp_cmul	34753494
_mp_mul	4374300
_mp_sqr	6298367
_mp_sub	0
_sqrtnr	22766
a_posteriori_errors	537241
abs_update	8005086
abs_update_r	778663
all_roots	536140
append_clone	1614150
bkeval_single_power	5235935
check_ab	1178778
checkbound	2354685
checkvalidpol	267081
clean_roots	536181
cleanroots	231763
cmp_complex_appr	2238648
conformal_basecase	1403789
conformal_mapping	467889
conformal_pol	1403909
dblexp	6548628
dbllog2	302088998
dft	502331
dual_modulus	1012391
eval_rel_pol	13137567
fft	14158991
fft2	7462
findpower	40957143
fix_roots	537244
fix_roots1	398435
fujiwara_bound	2271821
fujiwara_bound_real	1406827
graeffe	49504859
homothetie	1609990
homothetie2n	9957229
homothetie_gauss	36497017
ind_maxlog2	902641
initdft	996270
isexactpol	239753
isexactscalar	931714
isreal	961832
isvalidcoeff	1230081
logmax_modulus	4450645
logmin_modulus	1614686
logmodulus	606723
logpre_modulus	606716
logradius	493935
lower_bound	40956549
mydbllog2i	226425863
mydbllog2r	56181535
mydbllogr	9546511
mygprec	63756533
mygprec_absolute	4340083
mygprec_special	537247
mygprecrc	215177463
mygprecrc_special	2179172
myshiftic	135799439
myshiftrc	35504817
newton_polygon	5506920
optimize_split	493942
parameters	493938
pol_to_gaussint	17588196
polgraeffe	14
polmod_to_embed	84
polrootsbound	27321
polrootsbound_i	27314
polsolve	166764
quicktofp	6979123
realroots	50627
refine_F	502329
refine_H	2460360
root_error	1912634
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4289092
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494303
split_0_1	468252
split_0_2	468252
split_1	467891
split_2	493940
split_complete	1525849
split_fromU	493942
split_pols	166760
splitcauchy	166767
splitpoleval	5236053
tocomplex	1213993
update_radius	493942
usp	1125971

Generated by: LCOV version 1.16