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 30145-32f0acf4da) Lines: 1467 1530 95.9 % Date: 2025-04-18 09:18:41 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	3350
ZX_sturm	3735
ZX_graeffe	5383
fft2	7462
roots	8018
ZX_deg1root	15212
_sqrtnr	22647
polrootsbound_i	27034
polrootsbound	27041
RgX_normalize1	35628
ZX_realroots_irred	48309
realroots	50613
ZX_sturm_irred	116277
ZX_sturm_i	120012
split_pols	165658
polsolve	165663
splitcauchy	165670
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266682
QX_complex_roots	289487
_gen_zero	323598
fix_roots1	393852
conformal_mapping	467735
split_1	467736
split_0_1	468059
split_0_2	468059
logradius	493536
update_radius	493539
parameters	493540
split_2	493540
optimize_split	493543
split_fromU	493543
split_0	493862
refine_F	501928
dft	501931
all_roots	529072
clean_roots	529120
fix_roots	530120
a_posteriori_errors	530127
mygprec_special	530129
logpre_modulus	606025
logmodulus	606028
abs_update_r	777862
ZX_sturmpart	876918
ind_maxlog2	901837
check_ab	927532
isexactscalar	931280
usp	936944
isreal	961279
initdft	995474
dual_modulus	1011594
ZX_Uspensky	1059460
fujiwara_bound_real	1149562
tocomplex	1199229
isvalidcoeff	1226651
conformal_basecase	1403316
conformal_pol	1403435
split_complete	1517847
append_clone	1601479
homothetie	1608531
logmin_modulus	1614016
checkbound	1852191
root_error	1896459
ZX_rescale2prim	1935535
fujiwara_bound	2005684
mygprecrc_special	2158964
cmp_complex_appr	2226056
refine_H	2458771
scalepol	4286933
mygprec_absolute	4294069
_mp_mul	4360468
logmax_modulus	4448110
bkeval_single_power	5194698
splitpoleval	5194860
X2XP1	5201152
newton_polygon	5500634
_mp_sqr	6273183
quicktofp	6445074
dblexp	6544462
RgX_gtofp_bit	7017116
abs_update	7998890
mydbllogr	9539746
homothetie2n	9948248
_gen_nored	11120987
eval_rel_pol	13126078
fft	14143241
_gen_one	14368415
ZX_to_ZiX	16450533
pol_to_gaussint	17574138
_mp_add	24575064
_mp_cmul	34597608
myshiftrc	35477862
homothetie_gauss	36476120
lower_bound	40930140
findpower	40932059
graeffe	49472789
mydbllog2r	55919175
mygprec	63632559
ZiX_sqr	98966123
myshiftic	135732034
mygprecrc	214789196
mydbllog2i	224205666
dbllog2	300142408

Generated by: LCOV version 1.16