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

Generated by: LCOV version 1.16