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 30497-174c393803) Lines: 1467 1530 95.9 % Date: 2025-09-15 09:23:33 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296415
RgX_gtofp_bit	7031299
RgX_normalize1	35885
X2XP1	5990129
ZX_Uspensky	1313840
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15274
ZX_graeffe	5390
ZX_realroots_irred	48652
ZX_rescale2prim	2233663
ZX_sturm	6395
ZX_sturm_i	123170
ZX_sturm_irred	116775
ZX_sturmpart	1128197
ZX_to_ZiX	16455254
ZiX_sqr	99034500
_gen_nored	11200961
_gen_one	14474606
_gen_zero	326164
_intervalcmp	0
_mp_add	24663766
_mp_cmul	34765470
_mp_mul	4374551
_mp_sqr	6298336
_mp_sub	0
_sqrtnr	22709
a_posteriori_errors	537152
abs_update	8004601
abs_update_r	778662
all_roots	536105
append_clone	1613979
bkeval_single_power	5236469
check_ab	1178824
checkbound	2354778
checkvalidpol	267044
clean_roots	536153
cleanroots	231749
cmp_complex_appr	2238482
conformal_basecase	1403816
conformal_mapping	467901
conformal_pol	1403935
dblexp	6548783
dbllog2	302681402
dft	502343
dual_modulus	1012402
eval_rel_pol	13137673
fft	14158894
fft2	7462
findpower	40955546
fix_roots	537155
fix_roots1	398400
fujiwara_bound	2271726
fujiwara_bound_real	1406866
graeffe	49506886
homothetie	1610028
homothetie2n	9957422
homothetie_gauss	36497450
ind_maxlog2	902625
initdft	996295
isexactpol	239739
isexactscalar	931700
isreal	961854
isvalidcoeff	1230089
logmax_modulus	4450751
logmin_modulus	1614773
logmodulus	606736
logpre_modulus	606737
logradius	493952
lower_bound	40955449
mydbllog2i	226421711
mydbllog2r	56769113
mydbllogr	9545748
mygprec	63752638
mygprec_absolute	4339367
mygprec_special	537159
mygprecrc	215173046
mygprecrc_special	2178503
myshiftic	135828622
myshiftrc	35506816
newton_polygon	5507043
optimize_split	493954
parameters	493951
pol_to_gaussint	17588411
polgraeffe	14
polmod_to_embed	84
polrootsbound	27298
polrootsbound_i	27291
polsolve	166720
quicktofp	6978858
realroots	50627
refine_F	502339
refine_H	2460260
root_error	1912365
roots	8018
roots_aux	239767
roots_com	239739
rootsdeg0	42
scalepol	4289151
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494276
split_0_1	468223
split_0_2	468223
split_1	467900
split_2	493954
split_complete	1525704
split_fromU	493955
split_pols	166722
splitcauchy	166731
splitpoleval	5235968
tocomplex	1213926
update_radius	493950
usp	1125987

Generated by: LCOV version 1.16