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 30615-cf6389b5bf) Lines: 1603 1779 90.1 % Date: 2026-01-16 09:21:08 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	25166
ZM_hnfall	29352
hnf_i	61742
ZM_snfall	64190
ZM_hnf	89589
hnfadd_i	92642
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134577
ZM_hnfmod	162552
hnf_divscale	197486
ZV_snfclean	227083
ZM_rowrankprofile	227218
hnffinal	227219
ZM_hnflll	232749
hnf_invscale	275325
ZV_snf_group	316797
ZV_snfall	316797
ZV_allequal	322713
remove_0cols	335821
count2	421159
hnfmodid	438104
allhnfmod	438118
hnf_solve	461156
reverse_rows	465487
ZpM_echelon	528156
hnf_invimage	547537
negcmpii	602163
ZM_snf_group	712617
ZM_hnfall_i	752622
update	771817
ZM_snfall_i	796278
hnfmerge_get_1	815968
bezout_step	820467
reduce1	967385
ZMrow_divexact_inplace	976399
ZM_snfclean	1029510
snf_group	1029513
snf_pile	1071643
ZM_snf_no_divide	1235336
ZM_redpart	1551900
Minus	2056505
col_dup	2614801
col_mul	3087213
FpM_echelon	3364159
ZM_hnfmodprime	3364170
FpM_hnfend	3364324
ZM_reduce	4481656
ZM_hnfmodid	4536449
must_swap	4621847
zlm_echelon	4801503
ZM_hnfmodall	5138930
optimal_D	5187933
ZM_hnfmodall_i	5190063
FpV_Fp_mul_part_ip	5411436
subzi	6471739
count	8162032
hnfswap	8500376
ZC_lincomb1z	21862378
ZC_lincomb1z_i	21872960
FpV_red_part_ipvec	37701176
ZC_elem	41213734
affii2_or_copy_gc	47958493
reduce2	53152705
findi_normalize	106338561
findi	106346790
addzi	239411480
addmulzii	519108530

Generated by: LCOV version 1.16