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

Generated by: LCOV version 1.16