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 30568-0d72d66ef5) Lines: 1603 1779 90.1 % Date: 2025-12-01 09:22:22 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	25202
ZM_hnfall	29217
hnf_i	61688
ZM_snfall	64217
ZM_hnf	89400
hnfadd_i	92542
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134826
ZM_hnfmod	162603
hnf_divscale	197686
ZV_snfclean	227084
hnffinal	227368
ZM_rowrankprofile	227369
ZM_hnflll	232899
hnf_invscale	275364
ZV_snfall	316802
ZV_snf_group	316803
ZV_allequal	322739
remove_0cols	335622
count2	421328
hnfmodid	438379
allhnfmod	438393
hnf_solve	461147
reverse_rows	465777
ZpM_echelon	528415
hnf_invimage	547526
negcmpii	602156
ZM_snf_group	712940
ZM_hnfall_i	752502
update	771865
ZM_snfall_i	796628
hnfmerge_get_1	816125
bezout_step	820513
reduce1	967385
ZMrow_divexact_inplace	976779
ZM_snfclean	1029808
snf_group	1029815
snf_pile	1071956
ZM_snf_no_divide	1235480
ZM_redpart	1552052
Minus	2059934
col_dup	2617505
col_mul	3087414
ZM_hnfmodprime	3364657
FpM_echelon	3364659
FpM_hnfend	3364826
ZM_reduce	4469671
ZM_hnfmodid	4533425
must_swap	4632163
zlm_echelon	4803157
ZM_hnfmodall	5136223
optimal_D	5185553
ZM_hnfmodall_i	5187576
FpV_Fp_mul_part_ip	5412836
subzi	6479893
count	8161471
hnfswap	8511803
ZC_lincomb1z	21903547
ZC_lincomb1z_i	21911489
FpV_red_part_ipvec	37701573
ZC_elem	41196087
affii2_or_copy_gc	48043018
reduce2	53228294
findi_normalize	106489044
findi	106498338
addzi	240185223
addmulzii	520275578

Generated by: LCOV version 1.16