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 30536-6f6fcf9613) Lines: 1467 1530 95.9 % Date: 2025-11-01 09:21:23 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	27291
polrootsbound	27298
RgX_normalize1	35899
ZX_realroots_irred	48651
realroots	50627
ZX_sturm_irred	116766
ZX_sturm_i	123161
polsolve	166720
split_pols	166721
splitcauchy	166722
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267058
QX_complex_roots	296415
_gen_zero	326103
fix_roots1	398473
split_1	467921
conformal_mapping	467922
split_0_1	468283
split_0_2	468283
logradius	493974
update_radius	493975
optimize_split	493976
split_fromU	493976
split_2	493977
parameters	493978
split_0	494339
refine_F	502360
dft	502368
all_roots	536120
clean_roots	536171
a_posteriori_errors	537224
fix_roots	537232
mygprec_special	537233
logpre_modulus	606760
logmodulus	606767
abs_update_r	778673
ind_maxlog2	902658
isexactscalar	931714
isreal	961896
initdft	996346
dual_modulus	1012461
usp	1125965
ZX_sturmpart	1128205
check_ab	1178833
tocomplex	1213967
isvalidcoeff	1230229
ZX_Uspensky	1313844
conformal_basecase	1403885
conformal_pol	1404004
fujiwara_bound_real	1406879
split_complete	1525892
homothetie	1610100
append_clone	1614189
logmin_modulus	1614781
root_error	1912579
mygprecrc_special	2179207
ZX_rescale2prim	2233683
cmp_complex_appr	2238558
fujiwara_bound	2271748
checkbound	2354798
refine_H	2460485
scalepol	4289369
mygprec_absolute	4339985
_mp_mul	4374427
logmax_modulus	4450879
bkeval_single_power	5235160
splitpoleval	5235504
newton_polygon	5507298
X2XP1	5990115
_mp_sqr	6298125
dblexp	6549042
quicktofp	6978889
RgX_gtofp_bit	7031682
abs_update	8005232
mydbllogr	9546831
homothetie2n	9957661
_gen_nored	11200453
eval_rel_pol	13138278
fft	14159610
_gen_one	14471064
ZX_to_ZiX	16456524
pol_to_gaussint	17589175
_mp_add	24660303
_mp_cmul	34761962
myshiftrc	35506613
homothetie_gauss	36496695
lower_bound	40955405
findpower	40955713
graeffe	49503988
mydbllog2r	56172783
mygprec	63757084
ZiX_sqr	99023344
myshiftic	135796178
mygprecrc	215183254
mydbllog2i	226433257
dbllog2	302098028

Generated by: LCOV version 1.16