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 30586-ccf601f509) Lines: 1603 1779 90.1 % Date: 2025-12-24 09:20:59 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	25164
ZM_hnfall	29234
hnf_i	61721
ZM_snfall	64182
ZM_hnf	89450
hnfadd_i	92475
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134563
ZM_hnfmod	162546
hnf_divscale	197504
ZM_rowrankprofile	227036
hnffinal	227038
ZV_snfclean	227087
ZM_hnflll	232568
hnf_invscale	275321
ZV_snf_group	316798
ZV_snfall	316798
ZV_allequal	322712
remove_0cols	335680
count2	421065
hnfmodid	438194
allhnfmod	438209
hnf_solve	461154
reverse_rows	465112
ZpM_echelon	528149
hnf_invimage	547527
negcmpii	602157
ZM_snf_group	712621
ZM_hnfall_i	752513
update	771819
ZM_snfall_i	796276
hnfmerge_get_1	815971
bezout_step	820454
reduce1	967385
ZMrow_divexact_inplace	976458
ZM_snfclean	1029516
snf_group	1029519
snf_pile	1071656
ZM_snf_no_divide	1235317
ZM_redpart	1551877
Minus	2056989
col_dup	2614797
col_mul	3087191
FpM_echelon	3364183
ZM_hnfmodprime	3364186
FpM_hnfend	3364306
ZM_reduce	4479893
ZM_hnfmodid	4531649
must_swap	4627665
zlm_echelon	4801513
ZM_hnfmodall	5134214
optimal_D	5183521
ZM_hnfmodall_i	5185346
FpV_Fp_mul_part_ip	5411405
subzi	6480021
count	8159496
hnfswap	8506016
ZC_lincomb1z	21894794
ZC_lincomb1z_i	21904162
FpV_red_part_ipvec	37687090
ZC_elem	41198393
affii2_or_copy_gc	48039201
reduce2	53215932
findi_normalize	106454941
findi	106462213
addzi	240339878
addmulzii	520474426

Generated by: LCOV version 1.16