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
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296412
RgX_gtofp_bit	7031521
RgX_normalize1	35900
X2XP1	5990589
ZX_Uspensky	1313955
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15274
ZX_graeffe	5390
ZX_realroots_irred	48651
ZX_rescale2prim	2233902
ZX_sturm	6395
ZX_sturm_i	123170
ZX_sturm_irred	116775
ZX_sturmpart	1128309
ZX_to_ZiX	16454239
ZiX_sqr	99036942
_gen_nored	11200508
_gen_one	14473395
_gen_zero	326153
_intervalcmp	0
_mp_add	24660254
_mp_cmul	34762154
_mp_mul	4374475
_mp_sqr	6298406
_mp_sub	0
_sqrtnr	22709
a_posteriori_errors	537222
abs_update	8004796
abs_update_r	778674
all_roots	536120
append_clone	1614169
bkeval_single_power	5235914
check_ab	1178936
checkbound	2355002
checkvalidpol	267059
clean_roots	536163
cleanroots	231763
cmp_complex_appr	2238506
conformal_basecase	1403858
conformal_mapping	467915
conformal_pol	1403977
dblexp	6548948
dbllog2	302078111
dft	502359
dual_modulus	1012439
eval_rel_pol	13138142
fft	14158759
fft2	7462
findpower	40956905
fix_roots	537223
fix_roots1	398463
fujiwara_bound	2271849
fujiwara_bound_real	1406989
graeffe	49503487
homothetie	1610070
homothetie2n	9957606
homothetie_gauss	36495889
ind_maxlog2	902649
initdft	996325
isexactpol	239753
isexactscalar	931714
isreal	961882
isvalidcoeff	1230230
logmax_modulus	4450792
logmin_modulus	1614743
logmodulus	606747
logpre_modulus	606746
logradius	493959
lower_bound	40956458
mydbllog2i	226420473
mydbllog2r	56181520
mydbllogr	9546391
mygprec	63757465
mygprec_absolute	4339875
mygprec_special	537229
mygprecrc	215183202
mygprecrc_special	2179161
myshiftic	135805541
myshiftrc	35506591
newton_polygon	5507169
optimize_split	493969
parameters	493964
pol_to_gaussint	17588713
polgraeffe	14
polmod_to_embed	84
polrootsbound	27299
polrootsbound_i	27292
polsolve	166724
quicktofp	6979137
realroots	50627
refine_F	502353
refine_H	2460440
root_error	1912552
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4289302
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494331
split_0_1	468275
split_0_2	468275
split_1	467915
split_2	493966
split_complete	1525877
split_fromU	493969
split_pols	166726
splitcauchy	166729
splitpoleval	5235551
tocomplex	1213938
update_radius	493969
usp	1126076

Generated by: LCOV version 1.16