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
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
ZM_hnfintersectmod	28
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	25167
ZM_hnfall	29345
hnf_i	62126
ZM_snfall	64238
ZM_hnf	89966
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117390
ZM_hnfmod	162603
hnfspec_i	186364
hnf_divscale	197478
ZV_snfclean	227087
hnf_invscale	275323
ZM_rowrankprofile	303757
hnffinal	303757
ZM_hnflll	309273
ZV_snfall	316935
ZV_snf_group	316936
ZV_allequal	322710
remove_0cols	336182
hnfmodid	438493
allhnfmod	438507
hnf_solve	461149
ZpM_echelon	528233
hnf_invimage	547525
count2	554794
negcmpii	602517
reverse_rows	618512
ZM_hnfall_i	752618
ZM_snf_group	764381
hnfmerge_get_1	815976
update	841923
ZM_snfall_i	848093
bezout_step	890576
reduce1	967385
ZMrow_divexact_inplace	1070776
ZM_snfclean	1081401
snf_group	1081404
snf_pile	1123477
ZM_snf_no_divide	1301786
ZM_redpart	1689791
Minus	2995759
ZM_hnfmodprime	3364217
FpM_echelon	3364233
FpM_hnfend	3364455
col_mul	3367625
col_dup	3769231
ZM_reduce	4474804
ZM_hnfmodid	4537300
zlm_echelon	4802379
ZM_hnfmodall	5140259
optimal_D	5189169
ZM_hnfmodall_i	5191352
FpV_Fp_mul_part_ip	5412044
must_swap	6177243
subzi	7912056
count	10214243
hnfswap	11606872
ZC_lincomb1z	29906243
ZC_lincomb1z_i	29934201
FpV_red_part_ipvec	37719734
ZC_elem	41255556
affii2_or_copy_gc	54229309
reduce2	64293921
findi_normalize	128639632
findi	128655834
addzi	276916484
addmulzii	582674997

Generated by: LCOV version 1.16