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 30590-f14e077362) Lines: 1467 1530 95.9 % Date: 2025-12-31 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	15198
_sqrtnr	22591
polrootsbound_i	27123
polrootsbound	27130
RgX_normalize1	35731
ZX_realroots_irred	48555
realroots	50627
ZX_sturm_irred	116574
ZX_sturm_i	122970
split_pols	166679
polsolve	166682
splitcauchy	166685
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	266890
QX_complex_roots	296172
_gen_zero	325944
fix_roots1	398352
split_1	467791
conformal_mapping	467793
split_0_1	468155
split_0_2	468155
logradius	493841
parameters	493844
update_radius	493844
split_fromU	493845
optimize_split	493846
split_2	493846
split_0	494211
refine_F	502231
dft	502235
all_roots	535875
clean_roots	535921
fix_roots	536975
a_posteriori_errors	536977
mygprec_special	536983
logpre_modulus	606541
logmodulus	606544
abs_update_r	778518
ind_maxlog2	902439
isexactscalar	931714
isreal	961634
initdft	996079
dual_modulus	1012205
usp	1125939
ZX_sturmpart	1128233
check_ab	1178860
tocomplex	1213159
isvalidcoeff	1228143
ZX_Uspensky	1313719
conformal_basecase	1403491
conformal_pol	1403613
fujiwara_bound_real	1406690
split_complete	1525387
homothetie	1609628
append_clone	1613505
logmin_modulus	1614387
root_error	1911603
mygprecrc_special	2178265
ZX_rescale2prim	2233591
cmp_complex_appr	2237197
fujiwara_bound	2270991
checkbound	2354849
refine_H	2459947
scalepol	4288215
mygprec_absolute	4337404
_mp_mul	4374584
logmax_modulus	4449629
bkeval_single_power	5234962
splitpoleval	5235068
newton_polygon	5505189
X2XP1	5989919
_mp_sqr	6297993
dblexp	6547312
quicktofp	6976778
RgX_gtofp_bit	7028994
abs_update	8003846
mydbllogr	9544836
homothetie2n	9954465
_gen_nored	11203192
eval_rel_pol	13134439
fft	14155502
_gen_one	14471861
ZX_to_ZiX	16452251
pol_to_gaussint	17584039
_mp_add	24662390
_mp_cmul	34770087
myshiftrc	35495447
homothetie_gauss	36487516
lower_bound	40945086
findpower	40946233
graeffe	49496058
mydbllog2r	56171520
mygprec	63742819
ZiX_sqr	99012325
myshiftic	135804669
mygprecrc	215125278
mydbllog2i	226385359
dbllog2	302061389

Generated by: LCOV version 1.16