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 30483-b6b1f87815) Lines: 1467 1530 95.9 % Date: 2025-09-12 09:24:16 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296374
RgX_gtofp_bit	7031321
RgX_normalize1	35885
X2XP1	5990470
ZX_Uspensky	1313891
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15272
ZX_graeffe	5383
ZX_realroots_irred	48635
ZX_rescale2prim	2233805
ZX_sturm	6395
ZX_sturm_i	123163
ZX_sturm_irred	116768
ZX_sturmpart	1128262
ZX_to_ZiX	16455786
ZiX_sqr	99045255
_gen_nored	11197654
_gen_one	14468937
_gen_zero	326152
_intervalcmp	0
_mp_add	24658949
_mp_cmul	34758092
_mp_mul	4373723
_mp_sqr	6297221
_mp_sub	0
_sqrtnr	22707
a_posteriori_errors	537111
abs_update	8004991
abs_update_r	778671
all_roots	536069
append_clone	1613941
bkeval_single_power	5234752
check_ab	1178889
checkbound	2354908
checkvalidpol	267044
clean_roots	536114
cleanroots	231749
cmp_complex_appr	2238511
conformal_basecase	1403835
conformal_mapping	467908
conformal_pol	1403956
dblexp	6548856
dbllog2	302678693
dft	502346
dual_modulus	1012428
eval_rel_pol	13138005
fft	14159139
fft2	7462
findpower	40958738
fix_roots	537112
fix_roots1	398398
fujiwara_bound	2271667
fujiwara_bound_real	1406903
graeffe	49507904
homothetie	1610055
homothetie2n	9957517
homothetie_gauss	36501731
ind_maxlog2	902642
initdft	996304
isexactpol	239739
isexactscalar	931700
isreal	961863
isvalidcoeff	1230089
logmax_modulus	4450805
logmin_modulus	1614775
logmodulus	606735
logpre_modulus	606739
logradius	493951
lower_bound	40957940
mydbllog2i	226439658
mydbllog2r	56754537
mydbllogr	9546158
mygprec	63754960
mygprec_absolute	4339234
mygprec_special	537120
mygprecrc	215179300
mygprecrc_special	2178434
myshiftic	135823883
myshiftrc	35506799
newton_polygon	5507094
optimize_split	493957
parameters	493958
pol_to_gaussint	17588832
polgraeffe	14
polmod_to_embed	84
polrootsbound	27298
polrootsbound_i	27291
polsolve	166682
quicktofp	6978855
realroots	50627
refine_F	502339
refine_H	2460323
root_error	1912285
roots	8018
roots_aux	239767
roots_com	239739
rootsdeg0	42
scalepol	4289204
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494279
split_0_1	468227
split_0_2	468227
split_1	467908
split_2	493957
split_complete	1525666
split_fromU	493957
split_pols	166674
splitcauchy	166684
splitpoleval	5234228
tocomplex	1213847
update_radius	493958
usp	1126068

Generated by: LCOV version 1.16