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 30580-ef5a862e7f) Lines: 1603 1779 90.1 % Date: 2025-12-19 09:23:05 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	25218
ZM_hnfall	29189
hnf_i	61715
ZM_snfall	64204
ZM_hnf	89399
hnfadd_i	92430
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134834
ZM_hnfmod	162571
hnf_divscale	197703
ZV_snfclean	227087
ZM_rowrankprofile	227267
hnffinal	227267
ZM_hnflll	232796
hnf_invscale	275340
ZV_snf_group	316800
ZV_snfall	316800
ZV_allequal	322725
remove_0cols	335636
count2	421286
hnfmodid	438358
allhnfmod	438372
hnf_solve	461142
reverse_rows	465571
ZpM_echelon	528483
hnf_invimage	547534
negcmpii	602109
ZM_snf_group	712915
ZM_hnfall_i	752475
update	771923
ZM_snfall_i	796591
hnfmerge_get_1	816085
bezout_step	820549
reduce1	967385
ZMrow_divexact_inplace	976745
ZM_snfclean	1029799
snf_group	1029802
snf_pile	1071910
ZM_snf_no_divide	1235470
ZM_redpart	1552114
Minus	2059216
col_dup	2617520
col_mul	3087671
ZM_hnfmodprime	3364466
FpM_echelon	3364522
FpM_hnfend	3364764
ZM_reduce	4469909
ZM_hnfmodid	4533298
must_swap	4630651
zlm_echelon	4803530
ZM_hnfmodall	5136060
optimal_D	5185435
ZM_hnfmodall_i	5187435
FpV_Fp_mul_part_ip	5412747
subzi	6478848
count	8160866
hnfswap	8510178
ZC_lincomb1z	21902159
ZC_lincomb1z_i	21912195
FpV_red_part_ipvec	37702357
ZC_elem	41197215
affii2_or_copy_gc	48036665
reduce2	53221237
findi_normalize	106468288
findi	106475562
addzi	240398501
addmulzii	520490491

Generated by: LCOV version 1.16