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 30536-6f6fcf9613) Lines: 1467 1530 95.9 % Date: 2025-11-02 09:21:49 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	22709
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35901
ZX_realroots_irred	48654
realroots	50627
ZX_sturm_irred	116777
ZX_sturm_i	123172
polsolve	166720
split_pols	166726
splitcauchy	166728
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267060
QX_complex_roots	296419
_gen_zero	326151
fix_roots1	398464
conformal_mapping	467926
split_1	467926
split_0_1	468285
split_0_2	468286
logradius	493973
split_2	493976
optimize_split	493978
split_fromU	493978
update_radius	493978
parameters	493979
split_0	494341
dft	502364
refine_F	502366
all_roots	536124
clean_roots	536168
fix_roots	537222
a_posteriori_errors	537226
mygprec_special	537232
logmodulus	606753
logpre_modulus	606753
abs_update_r	778662
ind_maxlog2	902675
isexactscalar	931714
isreal	961903
initdft	996341
dual_modulus	1012448
usp	1126055
ZX_sturmpart	1128224
check_ab	1178850
tocomplex	1213954
isvalidcoeff	1230235
ZX_Uspensky	1313868
conformal_basecase	1403888
conformal_pol	1404007
fujiwara_bound_real	1406898
split_complete	1525907
homothetie	1610085
append_clone	1614182
logmin_modulus	1614795
root_error	1912592
mygprecrc_special	2179184
ZX_rescale2prim	2233771
cmp_complex_appr	2238537
fujiwara_bound	2271769
checkbound	2354828
refine_H	2460486
scalepol	4289397
mygprec_absolute	4339996
_mp_mul	4374504
logmax_modulus	4450911
splitpoleval	5235072
bkeval_single_power	5235425
newton_polygon	5507190
X2XP1	5990236
_mp_sqr	6298328
dblexp	6549042
quicktofp	6979051
RgX_gtofp_bit	7031551
abs_update	8005095
mydbllogr	9546594
homothetie2n	9957601
_gen_nored	11201211
eval_rel_pol	13138113
fft	14159155
_gen_one	14472181
ZX_to_ZiX	16457193
pol_to_gaussint	17589032
_mp_add	24660884
_mp_cmul	34763067
myshiftrc	35506682
homothetie_gauss	36498409
findpower	40957380
lower_bound	40957428
graeffe	49505523
mydbllog2r	56174346
mygprec	63757547
ZiX_sqr	99027020
myshiftic	135801413
mygprecrc	215187810
mydbllog2i	226443498
dbllog2	302103588

Generated by: LCOV version 1.16