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 30565-738e569de9) Lines: 1467 1530 95.9 % Date: 2025-11-30 09:23:42 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	15273
_sqrtnr	22708
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35901
ZX_realroots_irred	48653
realroots	50627
ZX_sturm_irred	116774
ZX_sturm_i	123169
polsolve	166722
split_pols	166727
splitcauchy	166730
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267060
QX_complex_roots	296417
_gen_zero	326145
fix_roots1	398471
conformal_mapping	467927
split_1	467929
split_0_1	468292
split_0_2	468292
logradius	493973
update_radius	493976
split_2	493977
parameters	493979
split_fromU	493979
optimize_split	493980
split_0	494342
refine_F	502366
dft	502372
all_roots	536126
clean_roots	536170
fix_roots	537224
a_posteriori_errors	537230
mygprec_special	537231
logmodulus	606757
logpre_modulus	606757
abs_update_r	778656
ind_maxlog2	902679
isexactscalar	931714
isreal	961907
initdft	996352
dual_modulus	1012474
usp	1126061
ZX_sturmpart	1128231
check_ab	1178857
tocomplex	1213957
isvalidcoeff	1230235
ZX_Uspensky	1313877
conformal_basecase	1403896
conformal_pol	1404016
fujiwara_bound_real	1406903
split_complete	1525909
homothetie	1610112
append_clone	1614179
logmin_modulus	1614810
root_error	1912569
mygprecrc_special	2179190
ZX_rescale2prim	2233843
cmp_complex_appr	2238534
fujiwara_bound	2271769
checkbound	2354844
refine_H	2460499
scalepol	4289415
mygprec_absolute	4339959
_mp_mul	4374475
logmax_modulus	4450959
splitpoleval	5235588
bkeval_single_power	5236009
newton_polygon	5507226
X2XP1	5990519
_mp_sqr	6298362
dblexp	6549051
quicktofp	6979093
RgX_gtofp_bit	7031580
abs_update	8005178
mydbllogr	9546810
homothetie2n	9957787
_gen_nored	11200373
eval_rel_pol	13138394
fft	14159354
_gen_one	14473421
ZX_to_ZiX	16458535
pol_to_gaussint	17589308
_mp_add	24660579
_mp_cmul	34761158
myshiftrc	35507013
homothetie_gauss	36498051
lower_bound	40958172
findpower	40958594
graeffe	49506358
mydbllog2r	56183044
mygprec	63758708
ZiX_sqr	99041032
myshiftic	135803532
mygprecrc	215197930
mydbllog2i	226428713
dbllog2	302086691

Generated by: LCOV version 1.16