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 30586-ccf601f509) Lines: 1467 1530 95.9 % Date: 2025-12-24 09:20:59 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296164
RgX_gtofp_bit	7028913
RgX_normalize1	35733
X2XP1	5990208
ZX_Uspensky	1313737
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15195
ZX_graeffe	5390
ZX_realroots_irred	48550
ZX_rescale2prim	2233738
ZX_sturm	6395
ZX_sturm_i	122970
ZX_sturm_irred	116576
ZX_sturmpart	1128248
ZX_to_ZiX	16451113
ZiX_sqr	99005530
_gen_nored	11198590
_gen_one	14469854
_gen_zero	325933
_intervalcmp	0
_mp_add	24659495
_mp_cmul	34759809
_mp_mul	4374528
_mp_sqr	6297878
_mp_sub	0
_sqrtnr	22586
a_posteriori_errors	536980
abs_update	8003974
abs_update_r	778512
all_roots	535875
append_clone	1613489
bkeval_single_power	5234421
check_ab	1178876
checkbound	2354881
checkvalidpol	266892
clean_roots	535919
cleanroots	231763
cmp_complex_appr	2237221
conformal_basecase	1403462
conformal_mapping	467781
conformal_pol	1403581
dblexp	6547140
dbllog2	302020363
dft	502229
dual_modulus	1012197
eval_rel_pol	13134167
fft	14155168
fft2	7462
findpower	40943749
fix_roots	536980
fix_roots1	398350
fujiwara_bound	2271010
fujiwara_bound_real	1406711
graeffe	49492288
homothetie	1609612
homothetie2n	9954264
homothetie_gauss	36485906
ind_maxlog2	902442
initdft	996063
isexactpol	239753
isexactscalar	931714
isreal	961619
isvalidcoeff	1228149
logmax_modulus	4449507
logmin_modulus	1614341
logmodulus	606537
logpre_modulus	606537
logradius	493838
lower_bound	40943865
mydbllog2i	226361220
mydbllog2r	56170194
mydbllogr	9544946
mygprec	63740808
mygprec_absolute	4337360
mygprec_special	536982
mygprecrc	215125340
mygprecrc_special	2178246
myshiftic	135764193
myshiftrc	35494122
newton_polygon	5505098
optimize_split	493839
parameters	493839
pol_to_gaussint	17583662
polgraeffe	14
polmod_to_embed	84
polrootsbound	27132
polrootsbound_i	27125
polsolve	166676
quicktofp	6976747
realroots	50627
refine_F	502221
refine_H	2459918
root_error	1911607
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4288107
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494201
split_0_1	468141
split_0_2	468141
split_1	467781
split_2	493835
split_complete	1525381
split_fromU	493838
split_pols	166675
splitcauchy	166690
splitpoleval	5234583
tocomplex	1213147
update_radius	493840
usp	1125946

Generated by: LCOV version 1.16