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 30418-83092bf331) Lines: 1335 1641 81.4 % Date: 2025-07-29 09:22:49 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	4246
fplll_heuristic	4246
gc_lll	4835
lllgram	9089
truncexpo	12139
ZC_to_RC	15952
dpeM_diagonal_shallow	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44553
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	188352
realsqrdotproduct	198160
setG_heuristic	206374
dpe_negz	244430
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	289747
mulshift	318943
dpe_addmuluz	342913
absrsmall2	402705
dpe_submuluz	412446
rotateG	443710
ZM_is_knapsack	606513
ZM_flatter_rank	623978
fplll_flatter	624939
ZM_flatter	625992
dperotate	652460
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	698128
lll_trivial	771023
dpe_muluz	799910
get_gramschmidt	1097857
realdotproduct	1186355
ZM_is_lower	1204023
lll	1243279
drop	1345208
flat	1345208
potential	1345208
sizered	1345208
affii_or_copy_gc	1390556
dpe_abssmall	1390583
submulshift	1507251
fplll_dpe	1602639
dpe_addz	1943191
vectail_inplace	2089670
fplll_fast	2103189
lll_finish	2163888
dbldotsquare	2480217
gramschmidt_dynprec	2690417
affdbldpe	3205275
cget_dpemat	3205277
mpabscmp	4091846
addmuliu2n	4104535
submuliu2n	4196941
ZM_is_upper	4231749
addmulziu	4580824
Babai_dpe	4653193
GS_extraprec	4723209
condition_bound	4723209
ZM2_lll_norms	4839932
gsisinv	5190841
dpe_cmpmul	5261411
dpe_cmp	5261414
lllfp	5365721
spread	5848261
submulziu	5923592
ZM_lll_norms	7128427
nbits2prec64	7483070
cget_dblmat	8412751
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10795135
rotateG_fast	11545778
update_alpha	11989589
cget_dpevec	13289246
dpe_divz	14073720
dpe_abscmp	14514227
setG2_fast	17026846
addzi	17783469
subzi	18524873
u64toi	19900941
affidpe	20746808
setG_fast	22654793
set_line	24924719
affdpe	25729795
Babai_fast	30199769
rotate	31931766
dblrotate	34637203
cget_dblvec	34973232
dpe_normalize	48105843
dpe_submulz	51700511
dpe_subz	53731708
dpe_mulz	56961784
dpe_normalize0	108554236
dbldotproduct	118219948
itodbl_exp	162614418

Generated by: LCOV version 1.16