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
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296172
RgX_gtofp_bit	7028994
RgX_normalize1	35731
X2XP1	5989919
ZX_Uspensky	1313719
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15198
ZX_graeffe	5390
ZX_realroots_irred	48555
ZX_rescale2prim	2233591
ZX_sturm	6395
ZX_sturm_i	122970
ZX_sturm_irred	116574
ZX_sturmpart	1128233
ZX_to_ZiX	16452251
ZiX_sqr	99012325
_gen_nored	11203192
_gen_one	14471861
_gen_zero	325944
_intervalcmp	0
_mp_add	24662390
_mp_cmul	34770087
_mp_mul	4374584
_mp_sqr	6297993
_mp_sub	0
_sqrtnr	22591
a_posteriori_errors	536977
abs_update	8003846
abs_update_r	778518
all_roots	535875
append_clone	1613505
bkeval_single_power	5234962
check_ab	1178860
checkbound	2354849
checkvalidpol	266890
clean_roots	535921
cleanroots	231763
cmp_complex_appr	2237197
conformal_basecase	1403491
conformal_mapping	467793
conformal_pol	1403613
dblexp	6547312
dbllog2	302061389
dft	502235
dual_modulus	1012205
eval_rel_pol	13134439
fft	14155502
fft2	7462
findpower	40946233
fix_roots	536975
fix_roots1	398352
fujiwara_bound	2270991
fujiwara_bound_real	1406690
graeffe	49496058
homothetie	1609628
homothetie2n	9954465
homothetie_gauss	36487516
ind_maxlog2	902439
initdft	996079
isexactpol	239753
isexactscalar	931714
isreal	961634
isvalidcoeff	1228143
logmax_modulus	4449629
logmin_modulus	1614387
logmodulus	606544
logpre_modulus	606541
logradius	493841
lower_bound	40945086
mydbllog2i	226385359
mydbllog2r	56171520
mydbllogr	9544836
mygprec	63742819
mygprec_absolute	4337404
mygprec_special	536983
mygprecrc	215125278
mygprecrc_special	2178265
myshiftic	135804669
myshiftrc	35495447
newton_polygon	5505189
optimize_split	493846
parameters	493844
pol_to_gaussint	17584039
polgraeffe	14
polmod_to_embed	84
polrootsbound	27130
polrootsbound_i	27123
polsolve	166682
quicktofp	6976778
realroots	50627
refine_F	502231
refine_H	2459947
root_error	1911603
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4288215
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494211
split_0_1	468155
split_0_2	468155
split_1	467791
split_2	493846
split_complete	1525387
split_fromU	493845
split_pols	166679
splitcauchy	166685
splitpoleval	5235068
tocomplex	1213159
update_radius	493844
usp	1125939

Generated by: LCOV version 1.16