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 30735-65f72320ad) Lines: 1603 1779 90.1 % Date: 2026-03-14 09:23:49 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364184
FpM_hnfend	3364273
FpV_Fp_mul_part_ip	5412090
FpV_red_part_ipvec	37728056
Minus	2991374
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41250980
ZC_lincomb1z	29878480
ZC_lincomb1z_i	29901153
ZM_hnf	89570
ZM_hnf_knapsack	238
ZM_hnfall	29342
ZM_hnfall_i	752621
ZM_hnfcenter	25170
ZM_hnflll	308831
ZM_hnfmod	162602
ZM_hnfmodall	5140456
ZM_hnfmodall_i	5191564
ZM_hnfmodid	4537535
ZM_hnfmodprime	3364185
ZM_hnfperm	385
ZM_redpart	1690328
ZM_reduce	4465167
ZM_rowrankprofile	303299
ZM_snf	15925
ZM_snf_group	764408
ZM_snf_no_divide	1301963
ZM_snfall	64239
ZM_snfall_i	848119
ZM_snfclean	1081378
ZMrow_divexact_inplace	1070806
ZV_allequal	322715
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316939
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316939
ZV_snfclean	227082
ZpM_echelon	528219
addmulzii	583023841
addzi	277270122
affii2_or_copy_gc	54248071
allhnfmod	438507
bezout_step	890705
col_dup	3769049
col_mul	3368195
count	10217079
count2	554446
do_zero	0
findi	128505037
findi_normalize	128493560
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197489
hnf_i	61733
hnf_invimage	547528
hnf_invscale	275325
hnf_solve	461160
hnfadd	0
hnfadd_i	116950
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303302
hnflll	7
hnfmerge_get_1	815963
hnfmod	14
hnfmodid	438493
hnfperm	14
hnfspec	0
hnfspec_i	186349
hnfswap	11590212
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6164389
negcmpii	602525
normalize_as_RgX	364
optimal_D	5189639
p_mat	0
reduce1	967385
reduce2	64237090
remove_0cols	335803
reverse_rows	617626
smith	385
smithall	35
smithclean	693
snf_group	1081380
snf_pile	1123498
snf_pile1	48
snfrank	154
subzi	7900495
trivsmith	0
update	842072
zlm_echelon	4802377
zv_snf_rank	0

Generated by: LCOV version 1.16