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 30617-dd5c93fb0e) Lines: 1603 1779 90.1 % Date: 2026-01-19 09:22:13 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364192
FpM_hnfend	3364391
FpV_Fp_mul_part_ip	5411477
FpV_red_part_ipvec	37706854
Minus	2055883
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41212659
ZC_lincomb1z	21861997
ZC_lincomb1z_i	21871657
ZM_hnf	89624
ZM_hnf_knapsack	238
ZM_hnfall	29385
ZM_hnfall_i	752659
ZM_hnfcenter	25167
ZM_hnflll	232749
ZM_hnfmod	162552
ZM_hnfmodall	5138928
ZM_hnfmodall_i	5190034
ZM_hnfmodid	4536439
ZM_hnfmodprime	3364182
ZM_hnfperm	385
ZM_redpart	1552081
ZM_reduce	4480863
ZM_rowrankprofile	227215
ZM_snf	15925
ZM_snf_group	712624
ZM_snf_no_divide	1235399
ZM_snfall	64190
ZM_snfall_i	796282
ZM_snfclean	1029515
ZMrow_divexact_inplace	976426
ZV_allequal	322713
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316800
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316799
ZV_snfclean	227088
ZpM_echelon	528137
addmulzii	519267087
addzi	239560434
affii2_or_copy_gc	47961845
allhnfmod	438120
bezout_step	820496
col_dup	2614796
col_mul	3087418
count	8161164
count2	420964
do_zero	0
findi	106340977
findi_normalize	106333917
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197475
hnf_i	61744
hnf_invimage	547533
hnf_invscale	275325
hnf_solve	461152
hnfadd	0
hnfadd_i	92641
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227219
hnflll	7
hnfmerge_get_1	815972
hnfmod	14
hnfmodid	438106
hnfperm	14
hnfspec	0
hnfspec_i	134578
hnfswap	8499369
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4620793
negcmpii	602160
normalize_as_RgX	364
optimal_D	5188133
p_mat	0
reduce1	967385
reduce2	53151910
remove_0cols	335857
reverse_rows	465471
smith	385
smithall	35
smithclean	693
snf_group	1029525
snf_pile	1071661
snf_pile1	48
snfrank	154
subzi	6469984
trivsmith	0
update	771872
zlm_echelon	4801496
zv_snf_rank	0

Generated by: LCOV version 1.16