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 30589-01bb95f8b7) Lines: 1467 1530 95.9 % Date: 2025-12-30 09:21:31 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	15198
_sqrtnr	22590
polrootsbound_i	27125
polrootsbound	27132
RgX_normalize1	35733
ZX_realroots_irred	48557
realroots	50627
ZX_sturm_irred	116580
ZX_sturm_i	122975
split_pols	166677
polsolve	166680
splitcauchy	166688
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	266892
QX_complex_roots	296167
_gen_zero	325947
fix_roots1	398351
conformal_mapping	467785
split_1	467785
split_0_1	468146
split_0_2	468146
logradius	493832
update_radius	493836
parameters	493837
split_2	493837
optimize_split	493838
split_fromU	493838
split_0	494202
refine_F	502223
dft	502228
all_roots	535880
clean_roots	535919
a_posteriori_errors	536975
fix_roots	536979
mygprec_special	536983
logpre_modulus	606542
logmodulus	606545
abs_update_r	778514
ind_maxlog2	902421
isexactscalar	931714
isreal	961621
initdft	996065
dual_modulus	1012180
usp	1125875
ZX_sturmpart	1128153
check_ab	1178780
tocomplex	1213156
isvalidcoeff	1228149
ZX_Uspensky	1313650
conformal_basecase	1403472
conformal_pol	1403592
fujiwara_bound_real	1406609
split_complete	1525374
homothetie	1609605
append_clone	1613506
logmin_modulus	1614337
root_error	1911603
mygprecrc_special	2178247
ZX_rescale2prim	2233515
cmp_complex_appr	2237200
fujiwara_bound	2270926
checkbound	2354690
refine_H	2459908
scalepol	4288127
mygprec_absolute	4337383
_mp_mul	4374552
logmax_modulus	4449506
splitpoleval	5234849
bkeval_single_power	5234963
newton_polygon	5505198
X2XP1	5989718
_mp_sqr	6298030
dblexp	6547175
quicktofp	6976604
RgX_gtofp_bit	7029013
abs_update	8003666
mydbllogr	9544770
homothetie2n	9954354
_gen_nored	11200901
eval_rel_pol	13134162
fft	14155364
_gen_one	14470689
ZX_to_ZiX	16450356
pol_to_gaussint	17583686
_mp_add	24660765
_mp_cmul	34763832
myshiftrc	35495074
homothetie_gauss	36486328
lower_bound	40943745
findpower	40943754
graeffe	49491672
mydbllog2r	56170552
mygprec	63740090
ZiX_sqr	99007058
myshiftic	135767399
mygprecrc	215124294
mydbllog2i	226359575
dbllog2	302016952

Generated by: LCOV version 1.16