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

Generated by: LCOV version 1.16