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 - hnf_snf.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30584-b9873745ba) Lines: 1603 1779 90.1 % Date: 2025-12-22 09:21:19 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364425
FpM_hnfend	3364569
FpV_Fp_mul_part_ip	5411778
FpV_red_part_ipvec	37691179
Minus	2056753
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41204774
ZC_lincomb1z	21891153
ZC_lincomb1z_i	21901567
ZM_hnf	89466
ZM_hnf_knapsack	238
ZM_hnfall	29230
ZM_hnfall_i	752510
ZM_hnfcenter	25164
ZM_hnflll	232577
ZM_hnfmod	162546
ZM_hnfmodall	5134846
ZM_hnfmodall_i	5185970
ZM_hnfmodid	4532118
ZM_hnfmodprime	3364420
ZM_hnfperm	385
ZM_redpart	1551872
ZM_reduce	4480817
ZM_rowrankprofile	227047
ZM_snf	15925
ZM_snf_group	712638
ZM_snf_no_divide	1235347
ZM_snfall	64190
ZM_snfall_i	796297
ZM_snfclean	1029511
ZMrow_divexact_inplace	976399
ZV_allequal	322711
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316799
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316799
ZV_snfclean	227093
ZpM_echelon	528144
addmulzii	520393987
addzi	240258937
affii2_or_copy_gc	48032474
allhnfmod	438352
bezout_step	820459
col_dup	2614699
col_mul	3087232
count	8158961
count2	421037
do_zero	0
findi	106442869
findi_normalize	106435067
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197507
hnf_i	61741
hnf_invimage	547533
hnf_invscale	275326
hnf_solve	461162
hnfadd	0
hnfadd_i	92490
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227047
hnflll	7
hnfmerge_get_1	816114
hnfmod	14
hnfmodid	438338
hnfperm	14
hnfspec	0
hnfspec_i	134558
hnfswap	8504186
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4626440
negcmpii	602149
normalize_as_RgX	364
optimal_D	5184011
p_mat	0
reduce1	967385
reduce2	53204777
remove_0cols	335696
reverse_rows	465137
smith	385
smithall	35
smithclean	693
snf_group	1029512
snf_pile	1071644
snf_pile1	48
snfrank	154
subzi	6478336
trivsmith	0
update	771817
zlm_echelon	4801680
zv_snf_rank	0

Generated by: LCOV version 1.16