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 30862-ea47bd413c) Lines: 1610 1786 90.1 % Date: 2026-05-06 09:26:47 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3365684
FpM_hnfend	3365974
FpV_Fp_mul_part_ip	5413475
FpV_red_part_ipvec	37729660
Minus	2994685
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41263399
ZC_lincomb1z	29903735
ZC_lincomb1z_i	29923831
ZM_hnf	90351
ZM_hnf_knapsack	238
ZM_hnfall	29336
ZM_hnfall_i	752613
ZM_hnfcenter	25174
ZM_hnfintersectmod	28
ZM_hnflll	309137
ZM_hnfmod	162636
ZM_hnfmodall	5142184
ZM_hnfmodall_i	5193303
ZM_hnfmodid	4539210
ZM_hnfmodprime	3365689
ZM_hnfperm	385
ZM_redpart	1689942
ZM_reduce	4475579
ZM_rowrankprofile	303621
ZM_snf	15925
ZM_snf_group	764366
ZM_snf_no_divide	1301872
ZM_snfall	64243
ZM_snfall_i	848059
ZM_snfclean	1081399
ZMrow_divexact_inplace	1070772
ZV_allequal	322723
ZV_extgcd	110579
ZV_gcdext_i	111783
ZV_hnfgcdext	1211
ZV_snf_group	316936
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316936
ZV_snfclean	227088
ZpM_echelon	528227
addmulzii	583192252
addzi	277115411
affii2_or_copy_gc	54235837
allhnfmod	438536
bezout_step	890629
col_dup	3769145
col_mul	3367782
count	10216686
count2	554673
do_zero	0
findi	128648108
findi_normalize	128625679
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197528
hnf_i	62520
hnf_invimage	547538
hnf_invscale	275324
hnf_solve	461165
hnfadd	0
hnfadd_i	117257
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303622
hnflll	7
hnfmerge_get_1	815982
hnfmod	14
hnfmodid	438523
hnfperm	14
hnfspec	0
hnfspec_i	186355
hnfswap	11614522
is_RgX	2590
mathnf0	1477
mathnfspec	0
matsnf0	469
must_swap	6188716
negcmpii	602522
normalize_as_RgX	364
optimal_D	5191280
p_mat	0
reduce1	1013921
reduce2	64280876
remove_0cols	336566
reverse_rows	618243
smith	385
smithall	35
smithclean	693
snf_group	1081405
snf_pile	1123487
snf_pile1	48
snfrank	154
subzi	7909147
trivsmith	0
update	841971
zlm_echelon	4803807
zv_snf_rank	0

Generated by: LCOV version 1.16