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 30773-2078653b96) Lines: 1610 1786 90.1 % Date: 2026-04-03 09:26:58 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364233
FpM_hnfend	3364455
FpV_Fp_mul_part_ip	5412044
FpV_red_part_ipvec	37719734
Minus	2995759
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41255556
ZC_lincomb1z	29906243
ZC_lincomb1z_i	29934201
ZM_hnf	89966
ZM_hnf_knapsack	238
ZM_hnfall	29345
ZM_hnfall_i	752618
ZM_hnfcenter	25167
ZM_hnfintersectmod	28
ZM_hnflll	309273
ZM_hnfmod	162603
ZM_hnfmodall	5140259
ZM_hnfmodall_i	5191352
ZM_hnfmodid	4537300
ZM_hnfmodprime	3364217
ZM_hnfperm	385
ZM_redpart	1689791
ZM_reduce	4474804
ZM_rowrankprofile	303757
ZM_snf	15925
ZM_snf_group	764381
ZM_snf_no_divide	1301786
ZM_snfall	64238
ZM_snfall_i	848093
ZM_snfclean	1081401
ZMrow_divexact_inplace	1070776
ZV_allequal	322710
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316936
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316935
ZV_snfclean	227087
ZpM_echelon	528233
addmulzii	582674997
addzi	276916484
affii2_or_copy_gc	54229309
allhnfmod	438507
bezout_step	890576
col_dup	3769231
col_mul	3367625
count	10214243
count2	554794
do_zero	0
findi	128655834
findi_normalize	128639632
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197478
hnf_i	62126
hnf_invimage	547525
hnf_invscale	275323
hnf_solve	461149
hnfadd	0
hnfadd_i	117390
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303757
hnflll	7
hnfmerge_get_1	815976
hnfmod	14
hnfmodid	438493
hnfperm	14
hnfspec	0
hnfspec_i	186364
hnfswap	11606872
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6177243
negcmpii	602517
normalize_as_RgX	364
optimal_D	5189169
p_mat	0
reduce1	967385
reduce2	64293921
remove_0cols	336182
reverse_rows	618512
smith	385
smithall	35
smithclean	693
snf_group	1081404
snf_pile	1123477
snf_pile1	48
snfrank	154
subzi	7912056
trivsmith	0
update	841923
zlm_echelon	4802379
zv_snf_rank	0

Generated by: LCOV version 1.16