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: 2025-11-03 09:21:41 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296416
RgX_gtofp_bit	7031672
RgX_normalize1	35901
X2XP1	5990536
ZX_Uspensky	1313919
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15275
ZX_graeffe	5390
ZX_realroots_irred	48654
ZX_rescale2prim	2233839
ZX_sturm	6395
ZX_sturm_i	123169
ZX_sturm_irred	116774
ZX_sturmpart	1128272
ZX_to_ZiX	16458186
ZiX_sqr	99031719
_gen_nored	11201147
_gen_one	14472533
_gen_zero	326127
_intervalcmp	0
_mp_add	24660029
_mp_cmul	34763351
_mp_mul	4374450
_mp_sqr	6298224
_mp_sub	0
_sqrtnr	22710
a_posteriori_errors	537229
abs_update	8005552
abs_update_r	778667
all_roots	536126
append_clone	1614184
bkeval_single_power	5235067
check_ab	1178900
checkbound	2354929
checkvalidpol	267060
clean_roots	536172
cleanroots	231763
cmp_complex_appr	2238553
conformal_basecase	1403910
conformal_mapping	467933
conformal_pol	1404032
dblexp	6549154
dbllog2	302108812
dft	502375
dual_modulus	1012474
eval_rel_pol	13138416
fft	14159715
fft2	7462
findpower	40957960
fix_roots	537219
fix_roots1	398465
fujiwara_bound	2271811
fujiwara_bound_real	1406945
graeffe	49507137
homothetie	1610121
homothetie2n	9957846
homothetie_gauss	36499925
ind_maxlog2	902665
initdft	996358
isexactpol	239753
isexactscalar	931714
isreal	961920
isvalidcoeff	1230235
logmax_modulus	4450999
logmin_modulus	1614828
logmodulus	606764
logpre_modulus	606766
logradius	493984
lower_bound	40956766
mydbllog2i	226447146
mydbllog2r	56173920
mydbllogr	9547060
mygprec	63758265
mygprec_absolute	4339996
mygprec_special	537233
mygprecrc	215192380
mygprecrc_special	2179200
myshiftic	135804028
myshiftrc	35507225
newton_polygon	5507280
optimize_split	493987
parameters	493984
pol_to_gaussint	17589439
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166729
quicktofp	6979101
realroots	50627
refine_F	502372
refine_H	2460529
root_error	1912577
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4289455
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494348
split_0_1	468295
split_0_2	468295
split_1	467933
split_2	493982
split_complete	1525915
split_fromU	493987
split_pols	166727
splitcauchy	166731
splitpoleval	5235709
tocomplex	1213980
update_radius	493986
usp	1126071

Generated by: LCOV version 1.16