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 30563-682842a727) Lines: 1467 1530 95.9 % Date: 2025-11-29 09:23:24 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	27292
polrootsbound	27299
RgX_normalize1	35900
ZX_realroots_irred	48651
realroots	50627
ZX_sturm_irred	116775
ZX_sturm_i	123170
polsolve	166724
split_pols	166726
splitcauchy	166729
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267059
QX_complex_roots	296412
_gen_zero	326153
fix_roots1	398463
conformal_mapping	467915
split_1	467915
split_0_1	468275
split_0_2	468275
logradius	493959
parameters	493964
split_2	493966
optimize_split	493969
split_fromU	493969
update_radius	493969
split_0	494331
refine_F	502353
dft	502359
all_roots	536120
clean_roots	536163
a_posteriori_errors	537222
fix_roots	537223
mygprec_special	537229
logpre_modulus	606746
logmodulus	606747
abs_update_r	778674
ind_maxlog2	902649
isexactscalar	931714
isreal	961882
initdft	996325
dual_modulus	1012439
usp	1126076
ZX_sturmpart	1128309
check_ab	1178936
tocomplex	1213938
isvalidcoeff	1230230
ZX_Uspensky	1313955
conformal_basecase	1403858
conformal_pol	1403977
fujiwara_bound_real	1406989
split_complete	1525877
homothetie	1610070
append_clone	1614169
logmin_modulus	1614743
root_error	1912552
mygprecrc_special	2179161
ZX_rescale2prim	2233902
cmp_complex_appr	2238506
fujiwara_bound	2271849
checkbound	2355002
refine_H	2460440
scalepol	4289302
mygprec_absolute	4339875
_mp_mul	4374475
logmax_modulus	4450792
splitpoleval	5235551
bkeval_single_power	5235914
newton_polygon	5507169
X2XP1	5990589
_mp_sqr	6298406
dblexp	6548948
quicktofp	6979137
RgX_gtofp_bit	7031521
abs_update	8004796
mydbllogr	9546391
homothetie2n	9957606
_gen_nored	11200508
eval_rel_pol	13138142
fft	14158759
_gen_one	14473395
ZX_to_ZiX	16454239
pol_to_gaussint	17588713
_mp_add	24660254
_mp_cmul	34762154
myshiftrc	35506591
homothetie_gauss	36495889
lower_bound	40956458
findpower	40956905
graeffe	49503487
mydbllog2r	56181520
mygprec	63757465
ZiX_sqr	99036942
myshiftic	135805541
mygprecrc	215183202
mydbllog2i	226420473
dbllog2	302078111

Generated by: LCOV version 1.16