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
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	25172
ZM_hnfall	29355
hnf_i	61750
ZM_snfall	64190
ZM_hnf	89600
hnfadd_i	92603
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134577
ZM_hnfmod	162550
hnf_divscale	197475
ZV_snfclean	227094
ZM_rowrankprofile	227179
hnffinal	227181
ZM_hnflll	232711
hnf_invscale	275324
ZV_snf_group	316942
ZV_snfall	316942
ZV_allequal	322714
remove_0cols	335835
count2	421012
hnfmodid	438098
allhnfmod	438112
hnf_solve	461158
reverse_rows	465407
ZpM_echelon	528164
hnf_invimage	547530
negcmpii	602529
ZM_snf_group	712662
ZM_hnfall_i	752589
update	771798
ZM_snfall_i	796327
hnfmerge_get_1	815974
bezout_step	820434
reduce1	967385
ZMrow_divexact_inplace	976449
ZM_snfclean	1029664
snf_group	1029666
snf_pile	1071796
ZM_snf_no_divide	1235325
ZM_redpart	1551924
Minus	2055992
col_dup	2614844
col_mul	3087141
ZM_hnfmodprime	3364277
FpM_echelon	3364280
FpM_hnfend	3364464
ZM_reduce	4482697
ZM_hnfmodid	4536916
must_swap	4620988
zlm_echelon	4801732
ZM_hnfmodall	5139532
optimal_D	5188642
ZM_hnfmodall_i	5190524
FpV_Fp_mul_part_ip	5411594
subzi	6471036
count	8162567
hnfswap	8500773
ZC_lincomb1z	21871416
ZC_lincomb1z_i	21878992
FpV_red_part_ipvec	37719140
ZC_elem	41227890
affii2_or_copy_gc	47980505
reduce2	53170917
findi_normalize	106353466
findi	106365871
addzi	239933711
addmulzii	519499952

Generated by: LCOV version 1.16