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 30586-ccf601f509) Lines: 1603 1779 90.1 % Date: 2025-12-26 09:21:14 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
ZV_snf_trunc	0
do_zero	0
gsmith	0
gsmithall	0
hnfadd	0
hnfspec	0
mathnfspec	0
p_mat	0
trivsmith	0
zv_snf_rank	0
hnflll	7
hnf	14
hnfall	14
hnfmod	14
hnfperm	14
ZV_hnfgcdext	21
hnfallgen	21
smithall	35
RgM_hnfall	42
snf_pile1	48
RgXM_snf	49
ZV_snf_rank_u	49
RgM_reduce	84
ZV_snf_rank	91
hnfdivide	133
snfrank	154
gsnf_no_divide	196
ZM_hnf_knapsack	238
mathnf0	287
normalize_as_RgX	364
ZM_hnfperm	385
smith	385
matsnf0	469
RgC_elem	511
smithclean	693
gbezout_step	882
is_RgX	2590
ZM_snf	15925
ZM_hnfcenter	25168
ZM_hnfall	29213
hnf_i	61724
ZM_snfall	64182
ZM_hnf	89432
hnfadd_i	92473
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134563
ZM_hnfmod	162541
hnf_divscale	197490
ZM_rowrankprofile	227034
hnffinal	227036
ZV_snfclean	227091
ZM_hnflll	232566
hnf_invscale	275324
ZV_snf_group	316797
ZV_snfall	316798
ZV_allequal	322714
remove_0cols	335665
count2	420949
hnfmodid	438193
allhnfmod	438206
hnf_solve	461158
reverse_rows	465109
ZpM_echelon	528142
hnf_invimage	547534
negcmpii	602155
ZM_snf_group	712649
ZM_hnfall_i	752494
update	771763
ZM_snfall_i	796300
hnfmerge_get_1	815975
bezout_step	820418
reduce1	967385
ZMrow_divexact_inplace	976422
ZM_snfclean	1029507
snf_group	1029515
snf_pile	1071656
ZM_snf_no_divide	1235293
ZM_redpart	1551843
Minus	2057024
col_dup	2614816
col_mul	3087012
FpM_echelon	3364168
ZM_hnfmodprime	3364168
FpM_hnfend	3364398
ZM_reduce	4479234
ZM_hnfmodid	4531598
must_swap	4626903
zlm_echelon	4801397
ZM_hnfmodall	5134178
optimal_D	5183411
ZM_hnfmodall_i	5185310
FpV_Fp_mul_part_ip	5411395
subzi	6478840
count	8159007
hnfswap	8504009
ZC_lincomb1z	21890447
ZC_lincomb1z_i	21899405
FpV_red_part_ipvec	37685744
ZC_elem	41196987
affii2_or_copy_gc	48030260
reduce2	53200489
findi_normalize	106429541
findi	106439827
addzi	240265952
addmulzii	520360552

Generated by: LCOV version 1.16