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 30371-bd27ad7662) Lines: 1335 1641 81.4 % Date: 2025-07-06 09:22:54 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	244449
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412447
rotateG	443280
ZM_is_knapsack	606516
ZM_flatter_rank	623998
fplll_flatter	624959
ZM_flatter	626012
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771025
dpe_muluz	799911
get_gramschmidt	1097880
realdotproduct	1183370
ZM_is_lower	1204048
lll	1243282
drop	1345284
potential	1345285
flat	1345286
sizered	1345286
affii_or_copy_gc	1390589
dpe_abssmall	1390593
submulshift	1507243
fplll_dpe	1602662
dpe_addz	1943191
vectail_inplace	2089688
fplll_fast	2103210
lll_finish	2163906
dbldotsquare	2480247
gramschmidt_dynprec	2690568
affdbldpe	3205322
cget_dpemat	3205325
mpabscmp	4091942
addmuliu2n	4106917
submuliu2n	4201074
ZM_is_upper	4231931
addmulziu	4580873
Babai_dpe	4653254
GS_extraprec	4723417
condition_bound	4723417
ZM2_lll_norms	4840147
gsisinv	5191049
dpe_cmp	5261477
dpe_cmpmul	5261477
lllfp	5365955
spread	5848480
submulziu	5923594
ZM_lll_norms	7128672
nbits2prec64	7483458
cget_dblmat	8412828
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10795007
rotateG_fast	11545884
update_alpha	11989301
cget_dpevec	13289452
dpe_divz	14073834
dpe_abscmp	14514312
setG2_fast	17026973
addzi	17783994
subzi	18525392
u64toi	19900941
affidpe	20747018
setG_fast	22654838
set_line	24924649
affdpe	25730022
Babai_fast	30200147
rotate	31929939
dblrotate	34637659
cget_dblvec	34972803
dpe_normalize	48105846
dpe_submulz	51700598
dpe_subz	53731781
dpe_mulz	56961951
dpe_normalize0	108554441
dbldotproduct	118224432
itodbl_exp	162627834

Generated by: LCOV version 1.16