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 30673-b6380924e9) Lines: 1603 1779 90.1 % Date: 2026-02-08 09:23:25 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364280
FpM_hnfend	3364464
FpV_Fp_mul_part_ip	5411594
FpV_red_part_ipvec	37719140
Minus	2055992
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41227890
ZC_lincomb1z	21871416
ZC_lincomb1z_i	21878992
ZM_hnf	89600
ZM_hnf_knapsack	238
ZM_hnfall	29355
ZM_hnfall_i	752589
ZM_hnfcenter	25172
ZM_hnflll	232711
ZM_hnfmod	162550
ZM_hnfmodall	5139532
ZM_hnfmodall_i	5190524
ZM_hnfmodid	4536916
ZM_hnfmodprime	3364277
ZM_hnfperm	385
ZM_redpart	1551924
ZM_reduce	4482697
ZM_rowrankprofile	227179
ZM_snf	15925
ZM_snf_group	712662
ZM_snf_no_divide	1235325
ZM_snfall	64190
ZM_snfall_i	796327
ZM_snfclean	1029664
ZMrow_divexact_inplace	976449
ZV_allequal	322714
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316942
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316942
ZV_snfclean	227094
ZpM_echelon	528164
addmulzii	519499952
addzi	239933711
affii2_or_copy_gc	47980505
allhnfmod	438112
bezout_step	820434
col_dup	2614844
col_mul	3087141
count	8162567
count2	421012
do_zero	0
findi	106365871
findi_normalize	106353466
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197475
hnf_i	61750
hnf_invimage	547530
hnf_invscale	275324
hnf_solve	461158
hnfadd	0
hnfadd_i	92603
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227181
hnflll	7
hnfmerge_get_1	815974
hnfmod	14
hnfmodid	438098
hnfperm	14
hnfspec	0
hnfspec_i	134577
hnfswap	8500773
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4620988
negcmpii	602529
normalize_as_RgX	364
optimal_D	5188642
p_mat	0
reduce1	967385
reduce2	53170917
remove_0cols	335835
reverse_rows	465407
smith	385
smithall	35
smithclean	693
snf_group	1029666
snf_pile	1071796
snf_pile1	48
snfrank	154
subzi	6471036
trivsmith	0
update	771798
zlm_echelon	4801732
zv_snf_rank	0

Generated by: LCOV version 1.16