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 30462-6c568f4018) Lines: 1335 1641 81.4 % Date: 2025-08-10 09:24:05 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	44560
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244430
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342910
absrsmall2	401466
dpe_submuluz	412453
rotateG	443280
ZM_is_knapsack	606479
ZM_flatter_rank	624492
fplll_flatter	625453
ZM_flatter	626506
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771720
dpe_muluz	799914
get_gramschmidt	1098380
realdotproduct	1183370
ZM_is_lower	1204560
lll	1243315
drop	1345982
potential	1345983
flat	1345985
sizered	1345985
affii_or_copy_gc	1390587
dpe_abssmall	1390606
submulshift	1507243
fplll_dpe	1603187
dpe_addz	1943185
vectail_inplace	2090171
fplll_fast	2103687
lll_finish	2164390
dbldotsquare	2480756
gramschmidt_dynprec	2691968
affdbldpe	3206373
cget_dpemat	3206376
mpabscmp	4093290
addmuliu2n	4107555
submuliu2n	4201179
ZM_is_upper	4233841
addmulziu	4580814
Babai_dpe	4654289
GS_extraprec	4724943
condition_bound	4724943
ZM2_lll_norms	4841650
gsisinv	5192585
dpe_cmpmul	5262501
dpe_cmp	5262504
lllfp	5368083
spread	5849984
submulziu	5923666
ZM_lll_norms	7130689
nbits2prec64	7486831
cget_dblmat	8414726
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10794460
rotateG_fast	11545358
update_alpha	11988727
cget_dpevec	13293164
dpe_divz	14075321
dpe_abscmp	14515824
setG2_fast	17026359
addzi	17783602
subzi	18525142
u64toi	19900941
affidpe	20750019
setG_fast	22655086
set_line	24925615
affdpe	25731528
Babai_fast	30200023
rotate	31928349
dblrotate	34636012
cget_dblvec	34979362
dpe_normalize	48108498
dpe_submulz	51702241
dpe_subz	53733420
dpe_mulz	56964638
dpe_normalize0	108561008
dbldotproduct	118222188
itodbl_exp	162614052

Generated by: LCOV version 1.16