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 30660-09c6d0ed2e) Lines: 1603 1779 90.1 % Date: 2026-02-02 09:23:03 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364288
FpM_hnfend	3364435
FpV_Fp_mul_part_ip	5411572
FpV_red_part_ipvec	37711563
Minus	2055774
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41217015
ZC_lincomb1z	21873565
ZC_lincomb1z_i	21881334
ZM_hnf	89580
ZM_hnf_knapsack	238
ZM_hnfall	29324
ZM_hnfall_i	752601
ZM_hnfcenter	25167
ZM_hnflll	232682
ZM_hnfmod	162554
ZM_hnfmodall	5139037
ZM_hnfmodall_i	5190125
ZM_hnfmodid	4536528
ZM_hnfmodprime	3364133
ZM_hnfperm	385
ZM_redpart	1552073
ZM_reduce	4480639
ZM_rowrankprofile	227151
ZM_snf	15925
ZM_snf_group	712671
ZM_snf_no_divide	1235389
ZM_snfall	64190
ZM_snfall_i	796332
ZM_snfclean	1029510
ZMrow_divexact_inplace	976412
ZV_allequal	322717
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316795
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316796
ZV_snfclean	227090
ZpM_echelon	528142
addmulzii	519542800
addzi	239900085
affii2_or_copy_gc	47982419
allhnfmod	438119
bezout_step	820493
col_dup	2614900
col_mul	3087414
count	8160708
count2	421120
do_zero	0
findi	106378626
findi_normalize	106378230
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197482
hnf_i	61761
hnf_invimage	547525
hnf_invscale	275323
hnf_solve	461158
hnfadd	0
hnfadd_i	92578
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227152
hnflll	7
hnfmerge_get_1	815976
hnfmod	14
hnfmodid	438105
hnfperm	14
hnfspec	0
hnfspec_i	134576
hnfswap	8501722
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4621039
negcmpii	602159
normalize_as_RgX	364
optimal_D	5188254
p_mat	0
reduce1	967385
reduce2	53175885
remove_0cols	335817
reverse_rows	465354
smith	385
smithall	35
smithclean	693
snf_group	1029515
snf_pile	1071657
snf_pile1	48
snfrank	154
subzi	6471553
trivsmith	0
update	771863
zlm_echelon	4801695
zv_snf_rank	0

Generated by: LCOV version 1.16