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 30724-b49b12e983) Lines: 1603 1779 90.1 % Date: 2026-03-02 09:24:58 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364162
FpM_hnfend	3364385
FpV_Fp_mul_part_ip	5411721
FpV_red_part_ipvec	37718002
Minus	2992323
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41256082
ZC_lincomb1z	29898947
ZC_lincomb1z_i	29915035
ZM_hnf	89559
ZM_hnf_knapsack	238
ZM_hnfall	29323
ZM_hnfall_i	752595
ZM_hnfcenter	25170
ZM_hnflll	308817
ZM_hnfmod	162553
ZM_hnfmodall	5139435
ZM_hnfmodall_i	5190515
ZM_hnfmodid	4536895
ZM_hnfmodprime	3364166
ZM_hnfperm	385
ZM_redpart	1690158
ZM_reduce	4478895
ZM_rowrankprofile	303285
ZM_snf	15925
ZM_snf_group	764399
ZM_snf_no_divide	1301919
ZM_snfall	64190
ZM_snfall_i	848062
ZM_snfclean	1081293
ZMrow_divexact_inplace	1070778
ZV_allequal	322717
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316940
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316939
ZV_snfclean	227094
ZpM_echelon	528151
addmulzii	583435439
addzi	277605047
affii2_or_copy_gc	54261115
allhnfmod	438126
bezout_step	890642
col_dup	3768466
col_mul	3367935
count	10214665
count2	554548
do_zero	0
findi	128622734
findi_normalize	128597261
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197482
hnf_i	61741
hnf_invimage	547529
hnf_invscale	275322
hnf_solve	461161
hnfadd	0
hnfadd_i	116973
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303288
hnflll	7
hnfmerge_get_1	816001
hnfmod	14
hnfmodid	438112
hnfperm	14
hnfspec	0
hnfspec_i	186310
hnfswap	11596074
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6168884
negcmpii	602528
normalize_as_RgX	364
optimal_D	5188606
p_mat	0
reduce1	967385
reduce2	64279465
remove_0cols	335787
reverse_rows	617597
smith	385
smithall	35
smithclean	693
snf_group	1081404
snf_pile	1123502
snf_pile1	48
snfrank	154
subzi	7904784
trivsmith	0
update	842002
zlm_echelon	4801547
zv_snf_rank	0

Generated by: LCOV version 1.16