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 30792-987d9c52f6) Lines: 1610 1786 90.1 % Date: 2026-04-09 09:26:26 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364087
FpM_hnfend	3364412
FpV_Fp_mul_part_ip	5411978
FpV_red_part_ipvec	37720176
Minus	2994914
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41258248
ZC_lincomb1z	29904768
ZC_lincomb1z_i	29932726
ZM_hnf	89943
ZM_hnf_knapsack	238
ZM_hnfall	29324
ZM_hnfall_i	752599
ZM_hnfcenter	25162
ZM_hnfintersectmod	28
ZM_hnflll	309198
ZM_hnfmod	162600
ZM_hnfmodall	5140094
ZM_hnfmodall_i	5191193
ZM_hnfmodid	4537160
ZM_hnfmodprime	3364182
ZM_hnfperm	385
ZM_redpart	1689813
ZM_reduce	4474396
ZM_rowrankprofile	303682
ZM_snf	15925
ZM_snf_group	764391
ZM_snf_no_divide	1301863
ZM_snfall	64239
ZM_snfall_i	848104
ZM_snfclean	1081401
ZMrow_divexact_inplace	1070782
ZV_allequal	322718
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316941
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316941
ZV_snfclean	227085
ZpM_echelon	528230
addmulzii	582682800
addzi	276781953
affii2_or_copy_gc	54235514
allhnfmod	438510
bezout_step	890586
col_dup	3769173
col_mul	3367616
count	10215595
count2	555022
do_zero	0
findi	128659691
findi_normalize	128637038
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197488
hnf_i	62124
hnf_invimage	547537
hnf_invscale	275322
hnf_solve	461172
hnfadd	0
hnfadd_i	117321
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303683
hnflll	7
hnfmerge_get_1	815970
hnfmod	14
hnfmodid	438496
hnfperm	14
hnfspec	0
hnfspec_i	186363
hnfswap	11606018
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6176988
negcmpii	602514
normalize_as_RgX	364
optimal_D	5189234
p_mat	0
reduce1	967385
reduce2	64290162
remove_0cols	336154
reverse_rows	618371
smith	385
smithall	35
smithclean	693
snf_group	1081403
snf_pile	1123490
snf_pile1	48
snfrank	154
subzi	7911455
trivsmith	0
update	841915
zlm_echelon	4802375
zv_snf_rank	0

Generated by: LCOV version 1.16