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 30367-364c17a628) Lines: 1467 1530 95.9 % Date: 2025-07-03 09:21:30 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	290015
RgX_gtofp_bit	7023189
RgX_normalize1	35887
X2XP1	5990096
ZX_Uspensky	1313786
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15273
ZX_graeffe	5383
ZX_realroots_irred	48624
ZX_rescale2prim	2233689
ZX_sturm	6395
ZX_sturm_i	123156
ZX_sturm_irred	116761
ZX_sturmpart	1128174
ZX_to_ZiX	16451723
ZiX_sqr	99004019
_gen_nored	11177246
_gen_one	14442480
_gen_zero	325999
_intervalcmp	0
_mp_add	24652293
_mp_cmul	34730845
_mp_mul	4373526
_mp_sqr	6291795
_mp_sub	0
_sqrtnr	22709
a_posteriori_errors	530650
abs_update	8003075
abs_update_r	778414
all_roots	529608
append_clone	1602997
bkeval_single_power	5223475
check_ab	1178801
checkbound	2354732
checkvalidpol	266941
clean_roots	529651
cleanroots	231644
cmp_complex_appr	2231676
conformal_basecase	1403434
conformal_mapping	467772
conformal_pol	1403551
dblexp	6547110
dbllog2	300570965
dft	502208
dual_modulus	1012144
eval_rel_pol	13134438
fft	14156439
fft2	7462
findpower	40943623
fix_roots	530653
fix_roots1	394078
fujiwara_bound	2265026
fujiwara_bound_real	1406778
graeffe	49492981
homothetie	1609616
homothetie2n	9954864
homothetie_gauss	36486717
ind_maxlog2	902378
initdft	996027
isexactpol	239634
isexactscalar	931280
isreal	961593
isvalidcoeff	1229675
logmax_modulus	4449594
logmin_modulus	1614316
logmodulus	606579
logpre_modulus	606583
logradius	493817
lower_bound	40943194
mydbllog2i	224293631
mydbllog2r	56776738
mydbllogr	9544108
mygprec	63697801
mygprec_absolute	4300369
mygprec_special	530658
mygprecrc	214981299
mygprecrc_special	2161021
myshiftic	135789905
myshiftrc	35497793
newton_polygon	5505629
optimize_split	493820
parameters	493817
pol_to_gaussint	17584114
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166630
quicktofp	6960924
realroots	50627
refine_F	502198
refine_H	2459696
root_error	1899183
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4288010
scalepol2n	0
sol_ok	3378
solve_exact_pol	231040
split_0	494143
split_0_1	468096
split_0_2	468096
split_1	467773
split_2	493819
split_complete	1518930
split_fromU	493820
split_pols	166633
splitcauchy	166640
splitpoleval	5223471
tocomplex	1200993
update_radius	493819
usp	1125933

Generated by: LCOV version 1.16