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 30548-ec77dc363d) Lines: 1467 1530 95.9 % Date: 2025-11-14 09:22:38 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296420
RgX_gtofp_bit	7031630
RgX_normalize1	35901
X2XP1	5990259
ZX_Uspensky	1313867
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15272
ZX_graeffe	5390
ZX_realroots_irred	48652
ZX_rescale2prim	2233746
ZX_sturm	6395
ZX_sturm_i	123168
ZX_sturm_irred	116773
ZX_sturmpart	1128223
ZX_to_ZiX	16457705
ZiX_sqr	99034736
_gen_nored	11198636
_gen_one	14472679
_gen_zero	326155
_intervalcmp	0
_mp_add	24659410
_mp_cmul	34759513
_mp_mul	4374458
_mp_sqr	6298278
_mp_sub	0
_sqrtnr	22707
a_posteriori_errors	537222
abs_update	8005346
abs_update_r	778658
all_roots	536126
append_clone	1614186
bkeval_single_power	5235865
check_ab	1178850
checkbound	2354829
checkvalidpol	267060
clean_roots	536173
cleanroots	231763
cmp_complex_appr	2238573
conformal_basecase	1403878
conformal_mapping	467920
conformal_pol	1403999
dblexp	6549063
dbllog2	302080815
dft	502369
dual_modulus	1012456
eval_rel_pol	13138319
fft	14159438
fft2	7462
findpower	40956233
fix_roots	537225
fix_roots1	398469
fujiwara_bound	2271772
fujiwara_bound_real	1406898
graeffe	49504385
homothetie	1610101
homothetie2n	9957799
homothetie_gauss	36498505
ind_maxlog2	902657
initdft	996347
isexactpol	239753
isexactscalar	931714
isreal	961893
isvalidcoeff	1230235
logmax_modulus	4450889
logmin_modulus	1614787
logmodulus	606755
logpre_modulus	606763
logradius	493975
lower_bound	40956261
mydbllog2i	226417066
mydbllog2r	56181405
mydbllogr	9546886
mygprec	63757884
mygprec_absolute	4340029
mygprec_special	537233
mygprecrc	215192512
mygprecrc_special	2179202
myshiftic	135815396
myshiftrc	35507286
newton_polygon	5507237
optimize_split	493979
parameters	493977
pol_to_gaussint	17589247
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166724
quicktofp	6979005
realroots	50627
refine_F	502365
refine_H	2460474
root_error	1912590
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4289370
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494337
split_0_1	468282
split_0_2	468283
split_1	467919
split_2	493976
split_complete	1525898
split_fromU	493979
split_pols	166724
splitcauchy	166730
splitpoleval	5235694
tocomplex	1213980
update_radius	493976
usp	1126019

Generated by: LCOV version 1.16