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 30401-87099e65a6) Lines: 1335 1641 81.4 % Date: 2025-07-18 09:23:12 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	244421
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412447
rotateG	443280
ZM_is_knapsack	606420
ZM_flatter_rank	623985
fplll_flatter	624946
ZM_flatter	625999
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771018
dpe_muluz	799911
get_gramschmidt	1097857
realdotproduct	1183370
ZM_is_lower	1204025
lll	1243282
potential	1345196
drop	1345197
flat	1345197
sizered	1345197
affii_or_copy_gc	1390573
dpe_abssmall	1390588
submulshift	1507243
fplll_dpe	1602641
dpe_addz	1943190
vectail_inplace	2089569
fplll_fast	2103091
lll_finish	2163787
dbldotsquare	2480063
gramschmidt_dynprec	2690389
cget_dpemat	3205276
affdbldpe	3205277
mpabscmp	4091550
addmuliu2n	4107270
submuliu2n	4201119
ZM_is_upper	4231731
addmulziu	4580822
Babai_dpe	4653170
GS_extraprec	4723192
condition_bound	4723192
ZM2_lll_norms	4840033
gsisinv	5190811
dpe_cmpmul	5261402
dpe_cmp	5261404
lllfp	5365685
spread	5848144
submulziu	5923566
ZM_lll_norms	7128419
nbits2prec64	7483009
cget_dblmat	8412345
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10794230
rotateG_fast	11545065
update_alpha	11988479
cget_dpevec	13289116
dpe_divz	14073614
dpe_abscmp	14514111
setG2_fast	17025833
addzi	17783519
subzi	18524811
u64toi	19900941
affidpe	20746634
setG_fast	22653209
set_line	24922784
affdpe	25729715
Babai_fast	30198228
rotate	31927455
dblrotate	34635125
cget_dblvec	34970372
dpe_normalize	48105053
dpe_submulz	51699780
dpe_subz	53730909
dpe_mulz	56960962
dpe_normalize0	108552253
dbldotproduct	118217551
itodbl_exp	162610935

Generated by: LCOV version 1.16