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: 1605 1779 90.2 % Date: 2026-03-08 09:23:56 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364205
FpM_hnfend	3364427
FpV_Fp_mul_part_ip	5412106
FpV_red_part_ipvec	37729172
Minus	2993863
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41265749
ZC_lincomb1z	29909443
ZC_lincomb1z_i	29928763
ZM_hnf	89619
ZM_hnf_knapsack	238
ZM_hnfall	29356
ZM_hnfall_i	752629
ZM_hnfcenter	25171
ZM_hnflll	309133
ZM_hnfmod	162602
ZM_hnfmodall	5140651
ZM_hnfmodall_i	5191760
ZM_hnfmodid	4537698
ZM_hnfmodprime	3364209
ZM_hnfperm	385
ZM_redpart	1689984
ZM_reduce	4475291
ZM_rowrankprofile	303601
ZM_snf	15925
ZM_snf_group	764411
ZM_snf_no_divide	1301848
ZM_snfall	64238
ZM_snfall_i	848120
ZM_snfclean	1081401
ZMrow_divexact_inplace	1070802
ZV_allequal	322713
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316937
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316937
ZV_snfclean	227090
ZpM_echelon	528227
addmulzii	583127830
addzi	277383825
affii2_or_copy_gc	54271916
allhnfmod	438503
bezout_step	890450
col_dup	3769194
col_mul	3367037
count	10217536
count2	554577
do_zero	0
findi	128598247
findi_normalize	128585023
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197485
hnf_i	61768
hnf_invimage	547535
hnf_invscale	275327
hnf_solve	461164
hnfadd	0
hnfadd_i	117242
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303603
hnflll	7
hnfmerge_get_1	815976
hnfmod	14
hnfmodid	438489
hnfperm	14
hnfspec	0
hnfspec_i	186360
hnfswap	11601476
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6169947
negcmpii	602523
normalize_as_RgX	364
optimal_D	5189782
p_mat	0
reduce1	967385
reduce2	64278629
remove_0cols	335861
reverse_rows	618217
smith	385
smithall	35
smithclean	693
snf_group	1081403
snf_pile	1123496
snf_pile1	48
snfrank	154
subzi	7907976
trivsmith	0
update	841816
zlm_echelon	4802464
zv_snf_rank	0

Generated by: LCOV version 1.16