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
FpM_echelon	3364522
FpM_hnfend	3364764
FpV_Fp_mul_part_ip	5412747
FpV_red_part_ipvec	37702357
Minus	2059216
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41197215
ZC_lincomb1z	21902159
ZC_lincomb1z_i	21912195
ZM_hnf	89399
ZM_hnf_knapsack	238
ZM_hnfall	29189
ZM_hnfall_i	752475
ZM_hnfcenter	25218
ZM_hnflll	232796
ZM_hnfmod	162571
ZM_hnfmodall	5136060
ZM_hnfmodall_i	5187435
ZM_hnfmodid	4533298
ZM_hnfmodprime	3364466
ZM_hnfperm	385
ZM_redpart	1552114
ZM_reduce	4469909
ZM_rowrankprofile	227267
ZM_snf	15925
ZM_snf_group	712915
ZM_snf_no_divide	1235470
ZM_snfall	64204
ZM_snfall_i	796591
ZM_snfclean	1029799
ZMrow_divexact_inplace	976745
ZV_allequal	322725
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	316800
ZV_snfclean	227087
ZpM_echelon	528483
addmulzii	520490491
addzi	240398501
affii2_or_copy_gc	48036665
allhnfmod	438372
bezout_step	820549
col_dup	2617520
col_mul	3087671
count	8160866
count2	421286
do_zero	0
findi	106475562
findi_normalize	106468288
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197703
hnf_i	61715
hnf_invimage	547534
hnf_invscale	275340
hnf_solve	461142
hnfadd	0
hnfadd_i	92430
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227267
hnflll	7
hnfmerge_get_1	816085
hnfmod	14
hnfmodid	438358
hnfperm	14
hnfspec	0
hnfspec_i	134834
hnfswap	8510178
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4630651
negcmpii	602109
normalize_as_RgX	364
optimal_D	5185435
p_mat	0
reduce1	967385
reduce2	53221237
remove_0cols	335636
reverse_rows	465571
smith	385
smithall	35
smithclean	693
snf_group	1029802
snf_pile	1071910
snf_pile1	48
snfrank	154
subzi	6478848
trivsmith	0
update	771923
zlm_echelon	4803530
zv_snf_rank	0

Generated by: LCOV version 1.16