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
FpM_echelon	3364183
FpM_hnfend	3364306
FpV_Fp_mul_part_ip	5411405
FpV_red_part_ipvec	37687090
Minus	2056989
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41198393
ZC_lincomb1z	21894794
ZC_lincomb1z_i	21904162
ZM_hnf	89450
ZM_hnf_knapsack	238
ZM_hnfall	29234
ZM_hnfall_i	752513
ZM_hnfcenter	25164
ZM_hnflll	232568
ZM_hnfmod	162546
ZM_hnfmodall	5134214
ZM_hnfmodall_i	5185346
ZM_hnfmodid	4531649
ZM_hnfmodprime	3364186
ZM_hnfperm	385
ZM_redpart	1551877
ZM_reduce	4479893
ZM_rowrankprofile	227036
ZM_snf	15925
ZM_snf_group	712621
ZM_snf_no_divide	1235317
ZM_snfall	64182
ZM_snfall_i	796276
ZM_snfclean	1029516
ZMrow_divexact_inplace	976458
ZV_allequal	322712
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316798
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316798
ZV_snfclean	227087
ZpM_echelon	528149
addmulzii	520474426
addzi	240339878
affii2_or_copy_gc	48039201
allhnfmod	438209
bezout_step	820454
col_dup	2614797
col_mul	3087191
count	8159496
count2	421065
do_zero	0
findi	106462213
findi_normalize	106454941
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197504
hnf_i	61721
hnf_invimage	547527
hnf_invscale	275321
hnf_solve	461154
hnfadd	0
hnfadd_i	92475
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227038
hnflll	7
hnfmerge_get_1	815971
hnfmod	14
hnfmodid	438194
hnfperm	14
hnfspec	0
hnfspec_i	134563
hnfswap	8506016
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4627665
negcmpii	602157
normalize_as_RgX	364
optimal_D	5183521
p_mat	0
reduce1	967385
reduce2	53215932
remove_0cols	335680
reverse_rows	465112
smith	385
smithall	35
smithclean	693
snf_group	1029519
snf_pile	1071656
snf_pile1	48
snfrank	154
subzi	6480021
trivsmith	0
update	771819
zlm_echelon	4801513
zv_snf_rank	0

Generated by: LCOV version 1.16