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 - lll.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30365-beea1ff998) Lines: 1335 1641 81.4 % Date: 2025-07-02 09:21:24 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
RgM_flop	0
dbg_flatter	0
dbg_flattergram	0
fplll	0
matkerint0	28
lllgramkerim	35
lllkerim	35
kerint	42
lllgen	42
lllgramgen	42
lllgramkerimgen	42
lllkerimgen	42
qflllgram	63
kerint0	70
incrementalGSgen	168
lllallgen	168
lllgramallgen	168
lllint	183
REDgen	196
do_SWAPgen	196
qflllgram0	245
qflll0	301
pslg	504
ZM_flattergram	961
ZM_flattergram_rank	961
gramschmidt_upper	1336
RgM_Cholesky_dynprec	2967
flattergram_i	2967
ZM_to_RM	4244
fplll_heuristic	4244
gc_lll	4833
lllgram	9089
truncexpo	12138
ZC_to_RC	15945
dpeM_diagonal_shallow	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44553
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244445
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412446
rotateG	443280
ZM_is_knapsack	606462
ZM_flatter_rank	623995
fplll_flatter	624956
ZM_flatter	626009
dperotate	652461
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771019
dpe_muluz	799910
get_gramschmidt	1097857
realdotproduct	1183370
ZM_is_lower	1204029
lll	1243280
drop	1345281
flat	1345281
potential	1345281
sizered	1345281
affii_or_copy_gc	1390571
dpe_abssmall	1390591
submulshift	1507243
fplll_dpe	1602643
dpe_addz	1943191
vectail_inplace	2089606
fplll_fast	2103140
lll_finish	2163823
dbldotsquare	2480065
gramschmidt_dynprec	2690560
affdbldpe	3205284
cget_dpemat	3205297
mpabscmp	4091996
addmuliu2n	4105122
submuliu2n	4197185
ZM_is_upper	4231903
addmulziu	4580842
Babai_dpe	4653169
GS_extraprec	4723380
condition_bound	4723381
ZM2_lll_norms	4840178
gsisinv	5190988
dpe_cmpmul	5261389
dpe_cmp	5261392
lllfp	5365937
spread	5848362
submulziu	5923596
ZM_lll_norms	7128640
nbits2prec64	7483390
cget_dblmat	8412538
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10794558
rotateG_fast	11545520
update_alpha	11988928
cget_dpevec	13289100
dpe_divz	14073600
dpe_abscmp	14514129
setG2_fast	17026727
addzi	17783773
subzi	18525196
u64toi	19900941
affidpe	20746542
setG_fast	22654347
set_line	24924256
affdpe	25729767
Babai_fast	30199493
rotate	31928831
dblrotate	34636522
cget_dblvec	34971745
dpe_normalize	48105494
dpe_submulz	51700284
dpe_subz	53731444
dpe_mulz	56961482
dpe_normalize0	108553219
dbldotproduct	118220437
itodbl_exp	162598532

Generated by: LCOV version 1.16