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 30352-6fbc05cd7c) Lines: 1467 1530 95.9 % Date: 2025-06-28 09:22:12 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	290021
RgX_gtofp_bit	7023424
RgX_normalize1	35887
X2XP1	5989743
ZX_Uspensky	1313780
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15275
ZX_graeffe	5383
ZX_realroots_irred	48624
ZX_rescale2prim	2233526
ZX_sturm	6395
ZX_sturm_i	123155
ZX_sturm_irred	116760
ZX_sturmpart	1128173
ZX_to_ZiX	16454541
ZiX_sqr	99014367
_gen_nored	11172498
_gen_one	14442698
_gen_zero	325988
_intervalcmp	0
_mp_add	24651880
_mp_cmul	34722736
_mp_mul	4373497
_mp_sqr	6291997
_mp_sub	0
_sqrtnr	22710
a_posteriori_errors	530659
abs_update	8003161
abs_update_r	778423
all_roots	529614
append_clone	1603026
bkeval_single_power	5223425
check_ab	1178800
checkbound	2354730
checkvalidpol	266941
clean_roots	529656
cleanroots	231644
cmp_complex_appr	2231699
conformal_basecase	1403460
conformal_mapping	467782
conformal_pol	1403581
dblexp	6547273
dbllog2	300569580
dft	502218
dual_modulus	1012159
eval_rel_pol	13134838
fft	14157194
fft2	7462
findpower	40947781
fix_roots	530659
fix_roots1	394084
fujiwara_bound	2265026
fujiwara_bound_real	1406770
graeffe	49495929
homothetie	1609644
homothetie2n	9955103
homothetie_gauss	36488672
ind_maxlog2	902381
initdft	996047
isexactpol	239634
isexactscalar	931280
isreal	961614
isvalidcoeff	1229675
logmax_modulus	4449721
logmin_modulus	1614376
logmodulus	606597
logpre_modulus	606597
logradius	493828
lower_bound	40946283
mydbllog2i	224294731
mydbllog2r	56778578
mydbllogr	9544088
mygprec	63698985
mygprec_absolute	4300372
mygprec_special	530661
mygprecrc	214992521
mygprecrc_special	2161047
myshiftic	135774696
myshiftrc	35498920
newton_polygon	5505818
optimize_split	493831
parameters	493831
pol_to_gaussint	17584509
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166638
quicktofp	6960937
realroots	50627
refine_F	502219
refine_H	2459745
root_error	1899208
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4288087
scalepol2n	0
sol_ok	3378
solve_exact_pol	231040
split_0	494155
split_0_1	468106
split_0_2	468106
split_1	467783
split_2	493830
split_complete	1518965
split_fromU	493831
split_pols	166631
splitcauchy	166643
splitpoleval	5223662
tocomplex	1201000
update_radius	493830
usp	1125912

Generated by: LCOV version 1.16