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 30535-d1c72762fc) Lines: 1467 1530 95.9 % Date: 2025-10-26 09:21:42 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296413
RgX_gtofp_bit	7031615
RgX_normalize1	35900
X2XP1	5990291
ZX_Uspensky	1313817
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15275
ZX_graeffe	5390
ZX_realroots_irred	48653
ZX_rescale2prim	2233741
ZX_sturm	6395
ZX_sturm_i	123168
ZX_sturm_irred	116773
ZX_sturmpart	1128175
ZX_to_ZiX	16455720
ZiX_sqr	99028034
_gen_nored	11201664
_gen_one	14473088
_gen_zero	326151
_intervalcmp	0
_mp_add	24660696
_mp_cmul	34765040
_mp_mul	4374512
_mp_sqr	6298333
_mp_sub	0
_sqrtnr	22710
a_posteriori_errors	537223
abs_update	8005230
abs_update_r	778674
all_roots	536119
append_clone	1614179
bkeval_single_power	5235833
check_ab	1178802
checkbound	2354733
checkvalidpol	267060
clean_roots	536167
cleanroots	231763
cmp_complex_appr	2238553
conformal_basecase	1403876
conformal_mapping	467920
conformal_pol	1403995
dblexp	6549002
dbllog2	302094570
dft	502360
dual_modulus	1012456
eval_rel_pol	13138220
fft	14159225
fft2	7462
findpower	40956365
fix_roots	537222
fix_roots1	398464
fujiwara_bound	2271715
fujiwara_bound_real	1406853
graeffe	49505940
homothetie	1610093
homothetie2n	9957534
homothetie_gauss	36498248
ind_maxlog2	902662
initdft	996330
isexactpol	239753
isexactscalar	931714
isreal	961889
isvalidcoeff	1230235
logmax_modulus	4450814
logmin_modulus	1614761
logmodulus	606758
logpre_modulus	606757
logradius	493967
lower_bound	40955456
mydbllog2i	226437443
mydbllog2r	56172294
mydbllogr	9546760
mygprec	63757146
mygprec_absolute	4339925
mygprec_special	537231
mygprecrc	215181519
mygprecrc_special	2179182
myshiftic	135800085
myshiftrc	35506049
newton_polygon	5507241
optimize_split	493972
parameters	493971
pol_to_gaussint	17589065
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166727
quicktofp	6978897
realroots	50627
refine_F	502355
refine_H	2460446
root_error	1912560
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4289332
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494331
split_0_1	468275
split_0_2	468277
split_1	467918
split_2	493968
split_complete	1525882
split_fromU	493972
split_pols	166727
splitcauchy	166730
splitpoleval	5235868
tocomplex	1213955
update_radius	493971
usp	1126012

Generated by: LCOV version 1.16