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:

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 - lll.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30532-0c728fd268) Lines: 1335 1641 81.4 %
Date: 2025-10-18 09:22:31 Functions: 125 130 96.2 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Babai 0
Babai_dpe 4654200
Babai_fast 30199084
Babai_heuristic 288770
GS_extraprec 4724774
REDgen 196
RgM_Cholesky_dynprec 2967
RgM_flip 34918
RgM_flop 0
RgM_is_square_mat 45828
ZC_to_RC 15945
ZM2_lll_norms 4843628
ZM_flatter 626489
ZM_flatter_rank 624475
ZM_flattergram 961
ZM_flattergram_rank 961
ZM_is_knapsack 606417
ZM_is_lower 1204538
ZM_is_upper 4233681
ZM_lll_norms 7132593
ZM_to_RM 4244
absrsmall 696466
absrsmall2 401466
addmuliu2n 4107607
addmuliu642n 671548
addmuliu64_inplace 9581364
addmulziu 4580765
addmulzu2n 271563
addzi 17783762
affdbldpe 3206345
affdpe 25731294
affidpe 20749712
affii_or_copy_gc 1390579
cget_dblmat 8414439
cget_dblvec 34977997
cget_dpemat 3206346
cget_dpevec 13293019
condition_bound 4724774
dbg_flatter 0
dbg_flattergram 0
dbldotproduct 118219242
dbldotsquare 2480687
dblrotate 34634924
do_SWAPgen 196
dpeM_diagonal_shallow 20286
dpe_abscmp 14515577
dpe_abssmall 1390600
dpe_addmuluz 342912
dpe_addz 1943189
dpe_cmp 5262401
dpe_cmpmul 5262394
dpe_divz 14075096
dpe_muluz 799916
dpe_mulz 56963901
dpe_negz 244418
dpe_normalize 48107919
dpe_normalize0 108559464
dpe_submuluz 412454
dpe_submulz 51701661
dpe_subz 53732822
dperotate 652462
dpetor 94267
drop 1345913
flat 1345913
flattergram_i 2967
fplll 0
fplll_dpe 1603169
fplll_fast 2103614
fplll_flatter 625436
fplll_heuristic 4244
gc_lll 4833
get_gaussred 44559
get_gramschmidt 1098357
gramschmidt_dynprec 2691823
gramschmidt_upper 1336
gsisinv 5192401
incrementalGSgen 168
itodbl_exp 162587582
kerint 42
kerint0 70
lll 1243326
lll_finish 2164309
lll_trivial 771729
lllall 36699
lllallgen 168
lllfp 5367882
lllgen 42
lllgram 9089
lllgramallgen 168
lllgramgen 42
lllgramint 36439
lllgramkerim 35
lllgramkerimgen 42
lllint 183
lllkerim 35
lllkerimgen 42
matkerint0 28
mpabscmp 4093003
mulshift 318942
nbits2prec64 7486495
pari_rint 10794108
potential 1345913
pslg 504
qflll0 301
qflllgram 63
qflllgram0 245
realdotproduct 1183370
realsqrdotproduct 197413
rotate 31927262
rotateG 443280
rotateG_fast 11544967
setG2_fast 17025851
setG2_heuristic 187610
setG_fast 22654176
setG_heuristic 205626
set_line 24924872
sizered 1345913
spread 5849745
submuliu2n 4201223
submuliu642n 687471
submuliu64_inplace 9632106
submulshift 1507243
submulziu 5923606
submulzu2n 262549
subzi 18525247
truncexpo 12138
u64toi 19900941
u64toineg 671548
update_alpha 11988413
vectail_inplace 2090085

Generated by: LCOV version 1.16