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 30550-07450a7a86) Lines: 1467 1530 95.9 % Date: 2025-11-17 09:22:41 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	15274
_sqrtnr	22709
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35901
ZX_realroots_irred	48652
realroots	50627
ZX_sturm_irred	116773
ZX_sturm_i	123168
split_pols	166719
polsolve	166721
splitcauchy	166729
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267060
QX_complex_roots	296415
_gen_zero	326148
fix_roots1	398469
conformal_mapping	467926
split_1	467926
split_0_1	468291
split_0_2	468291
logradius	493974
split_2	493974
optimize_split	493977
split_fromU	493977
update_radius	493977
parameters	493978
split_0	494340
refine_F	502361
dft	502366
all_roots	536124
clean_roots	536168
a_posteriori_errors	537224
fix_roots	537225
mygprec_special	537229
logpre_modulus	606746
logmodulus	606753
abs_update_r	778658
ind_maxlog2	902664
isexactscalar	931714
isreal	961903
initdft	996340
dual_modulus	1012453
usp	1126056
ZX_sturmpart	1128238
check_ab	1178865
tocomplex	1213959
isvalidcoeff	1230235
ZX_Uspensky	1313879
conformal_basecase	1403892
conformal_pol	1404012
fujiwara_bound_real	1406920
split_complete	1525907
homothetie	1610084
append_clone	1614172
logmin_modulus	1614800
root_error	1912563
mygprecrc_special	2179185
ZX_rescale2prim	2233807
cmp_complex_appr	2238511
fujiwara_bound	2271781
checkbound	2354860
refine_H	2460457
scalepol	4289394
mygprec_absolute	4339967
_mp_mul	4374511
logmax_modulus	4450928
splitpoleval	5235601
bkeval_single_power	5235703
newton_polygon	5507199
X2XP1	5990474
_mp_sqr	6298264
dblexp	6549069
quicktofp	6979082
RgX_gtofp_bit	7031543
abs_update	8005102
mydbllogr	9546676
homothetie2n	9957767
_gen_nored	11199730
eval_rel_pol	13138112
fft	14158893
_gen_one	14472869
ZX_to_ZiX	16458815
pol_to_gaussint	17588964
_mp_add	24659670
_mp_cmul	34760008
myshiftrc	35507337
homothetie_gauss	36498421
lower_bound	40956345
findpower	40958764
graeffe	49506120
mydbllog2r	56184014
mygprec	63757897
ZiX_sqr	99039500
myshiftic	135802531
mygprecrc	215196009
mydbllog2i	226425858
dbllog2	302085638

Generated by: LCOV version 1.16