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 30571-c0dfe82732) Lines: 1467 1530 95.9 % Date: 2025-12-06 09:22:10 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	27300
polrootsbound	27307
RgX_normalize1	35908
ZX_realroots_irred	48655
realroots	50627
ZX_sturm_irred	116805
ZX_sturm_i	123200
polsolve	166722
split_pols	166727
splitcauchy	166731
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267067
QX_complex_roots	296483
_gen_zero	326148
fix_roots1	398483
conformal_mapping	467925
split_1	467927
split_0_1	468288
split_0_2	468288
logradius	493972
update_radius	493978
parameters	493980
split_2	493980
optimize_split	493982
split_fromU	493982
split_0	494341
refine_F	502360
dft	502369
all_roots	536185
clean_roots	536232
fix_roots	537283
a_posteriori_errors	537284
mygprec_special	537294
logpre_modulus	606761
logmodulus	606765
abs_update_r	778676
ind_maxlog2	902666
isexactscalar	931714
isreal	961909
initdft	996351
dual_modulus	1012452
usp	1126015
ZX_sturmpart	1128169
check_ab	1178796
tocomplex	1214157
isvalidcoeff	1230270
ZX_Uspensky	1313836
conformal_basecase	1403894
conformal_pol	1404013
fujiwara_bound_real	1406881
split_complete	1525977
homothetie	1610099
append_clone	1614301
logmin_modulus	1614798
root_error	1912754
mygprecrc_special	2179371
ZX_rescale2prim	2233683
cmp_complex_appr	2238682
fujiwara_bound	2271875
checkbound	2354722
refine_H	2460486
scalepol	4289401
mygprec_absolute	4340514
_mp_mul	4374438
logmax_modulus	4450968
splitpoleval	5235594
bkeval_single_power	5235845
newton_polygon	5507262
X2XP1	5990168
_mp_sqr	6298268
dblexp	6549089
quicktofp	6979366
RgX_gtofp_bit	7031677
abs_update	8005039
mydbllogr	9546566
homothetie2n	9957869
_gen_nored	11202655
eval_rel_pol	13138122
fft	14159216
_gen_one	14472979
ZX_to_ZiX	16456291
pol_to_gaussint	17589031
_mp_add	24661581
_mp_cmul	34765469
myshiftrc	35507718
homothetie_gauss	36496519
findpower	40955286
lower_bound	40955296
graeffe	49507702
mydbllog2r	56183662
mygprec	63758571
ZiX_sqr	99028382
myshiftic	135819835
mygprecrc	215189441
mydbllog2i	226431916
dbllog2	302104992

Generated by: LCOV version 1.16