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 30556-bb9f5f8fc8) Lines: 1467 1530 95.9 % Date: 2025-11-25 09:20:50 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	293333
RgX_gtofp_bit	6988291
RgX_normalize1	35832
X2XP1	5978884
ZX_Uspensky	1311839
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	14909
ZX_graeffe	5320
ZX_realroots_irred	47708
ZX_rescale2prim	2229845
ZX_sturm	6389
ZX_sturm_i	121805
ZX_sturm_irred	115416
ZX_sturmpart	1127773
ZX_to_ZiX	16276554
ZiX_sqr	98539336
_gen_nored	11086854
_gen_one	14336827
_gen_zero	325271
_intervalcmp	0
_mp_add	24463371
_mp_cmul	34467655
_mp_mul	4336477
_mp_sqr	6244415
_mp_sub	0
_sqrtnr	22385
a_posteriori_errors	534149
abs_update	7931079
abs_update_r	776482
all_roots	533044
append_clone	1605250
bkeval_single_power	5187452
check_ab	1178401
checkbound	2353932
checkvalidpol	266991
clean_roots	533085
cleanroots	231763
cmp_complex_appr	2223699
conformal_basecase	1397594
conformal_mapping	465828
conformal_pol	1397712
dblexp	6513626
dbllog2	300176345
dft	500063
dual_modulus	1007545
eval_rel_pol	13060799
fft	14029244
fft2	7462
findpower	40763125
fix_roots	534143
fix_roots1	396442
fujiwara_bound	2262630
fujiwara_bound_real	1403392
graeffe	49256267
homothetie	1601687
homothetie2n	9904540
homothetie_gauss	36325754
ind_maxlog2	898965
initdft	991816
isexactpol	239753
isexactscalar	931714
isreal	957579
isvalidcoeff	1229503
logmax_modulus	4430141
logmin_modulus	1607148
logmodulus	603267
logpre_modulus	603265
logradius	491747
lower_bound	40763234
mydbllog2i	225017236
mydbllog2r	55941306
mydbllogr	9464473
mygprec	63443214
mygprec_absolute	4309937
mygprec_special	534149
mygprecrc	213621456
mygprecrc_special	2167188
myshiftic	134936239
myshiftrc	35290424
newton_polygon	5474757
optimize_split	491755
parameters	491752
pol_to_gaussint	17490837
polgraeffe	14
polmod_to_embed	84
polrootsbound	27231
polrootsbound_i	27224
polsolve	165190
quicktofp	6947838
realroots	50627
refine_F	500056
refine_H	2449636
root_error	1901777
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4270151
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	492115
split_0_1	466187
split_0_2	466188
split_1	465827
split_2	491753
split_complete	1518377
split_fromU	491755
split_pols	165191
splitcauchy	165196
splitpoleval	5187136
tocomplex	1204411
update_radius	491750
usp	1122989

Generated by: LCOV version 1.16