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 30531-d68fd7cb7d) Lines: 1467 1530 95.9 % Date: 2025-10-15 09:22:51 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	27293
polrootsbound	27300
RgX_normalize1	35901
ZX_realroots_irred	48653
realroots	50627
ZX_sturm_irred	116777
ZX_sturm_i	123172
polsolve	166720
split_pols	166725
splitcauchy	166732
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267060
QX_complex_roots	296413
_gen_zero	326148
fix_roots1	398468
conformal_mapping	467930
split_1	467932
split_0_1	468293
split_0_2	468293
logradius	493979
split_2	493981
parameters	493983
split_fromU	493983
update_radius	493983
optimize_split	493984
split_0	494342
refine_F	502365
dft	502368
all_roots	536119
clean_roots	536165
a_posteriori_errors	537219
fix_roots	537222
mygprec_special	537228
logpre_modulus	606755
logmodulus	606756
abs_update_r	778657
ind_maxlog2	902678
isexactscalar	931714
isreal	961913
initdft	996352
dual_modulus	1012465
usp	1126012
ZX_sturmpart	1128167
check_ab	1178794
tocomplex	1213959
isvalidcoeff	1230235
ZX_Uspensky	1313814
conformal_basecase	1403907
conformal_pol	1404029
fujiwara_bound_real	1406850
split_complete	1525904
homothetie	1610102
append_clone	1614177
logmin_modulus	1614814
root_error	1912582
mygprecrc_special	2179184
ZX_rescale2prim	2233669
cmp_complex_appr	2238544
fujiwara_bound	2271714
checkbound	2354718
refine_H	2460525
scalepol	4289439
mygprec_absolute	4339960
_mp_mul	4374513
logmax_modulus	4450962
bkeval_single_power	5235719
splitpoleval	5235842
newton_polygon	5507196
X2XP1	5990151
_mp_sqr	6298228
dblexp	6549135
quicktofp	6978974
RgX_gtofp_bit	7031569
abs_update	8005451
mydbllogr	9546881
homothetie2n	9957690
_gen_nored	11202199
eval_rel_pol	13138197
fft	14159210
_gen_one	14472956
ZX_to_ZiX	16458980
pol_to_gaussint	17589198
_mp_add	24660891
_mp_cmul	34764386
myshiftrc	35507148
homothetie_gauss	36499176
lower_bound	40956789
findpower	40957434
graeffe	49506415
mydbllog2r	56770681
mygprec	63758673
ZiX_sqr	99029515
myshiftic	135803131
mygprecrc	215193152
mydbllog2i	226448114
dbllog2	302707125

Generated by: LCOV version 1.16