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 30569-8181146aa1) Lines: 1603 1779 90.1 % Date: 2025-12-02 09:22:09 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	29266
hnf_i	61727
ZM_snfall	64217
ZM_hnf	89488
hnfadd_i	92537
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134827
ZM_hnfmod	162600
hnf_divscale	197681
ZV_snfclean	227085
hnffinal	227365
ZM_rowrankprofile	227366
ZM_hnflll	232895
hnf_invscale	275362
ZV_snf_group	316795
ZV_snfall	316795
ZV_allequal	322741
remove_0cols	335704
count2	421242
hnfmodid	438370
allhnfmod	438384
hnf_solve	461145
reverse_rows	465765
ZpM_echelon	528405
hnf_invimage	547516
negcmpii	602153
ZM_snf_group	712940
ZM_hnfall_i	752561
update	771897
ZM_snfall_i	796624
hnfmerge_get_1	816124
bezout_step	820540
reduce1	967385
ZMrow_divexact_inplace	976787
ZM_snfclean	1029825
snf_group	1029827
snf_pile	1071946
ZM_snf_no_divide	1235504
ZM_redpart	1552045
Minus	2059792
col_dup	2617655
col_mul	3087534
FpM_echelon	3364636
ZM_hnfmodprime	3364642
FpM_hnfend	3364815
ZM_reduce	4480066
ZM_hnfmodid	4533676
must_swap	4632583
zlm_echelon	4803086
ZM_hnfmodall	5136450
optimal_D	5185723
ZM_hnfmodall_i	5187796
FpV_Fp_mul_part_ip	5412762
subzi	6481334
count	8161434
hnfswap	8511882
ZC_lincomb1z	21904786
ZC_lincomb1z_i	21912658
FpV_red_part_ipvec	37705493
ZC_elem	41211208
affii2_or_copy_gc	48045165
reduce2	53234933
findi_normalize	106500967
findi	106509976
addzi	240235187
addmulzii	520372436

Generated by: LCOV version 1.16