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 30571-c0dfe82732) Lines: 1603 1779 90.1 % Date: 2025-12-11 09:22:11 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	25206
ZM_hnfall	29267
hnf_i	61729
ZM_snfall	64218
ZM_hnf	89491
hnfadd_i	92565
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134829
ZM_hnfmod	162600
hnf_divscale	197699
ZV_snfclean	227091
hnffinal	227393
ZM_rowrankprofile	227395
ZM_hnflll	232922
hnf_invscale	275366
ZV_snf_group	316799
ZV_snfall	316799
ZV_allequal	322736
remove_0cols	335726
count2	421266
hnfmodid	438378
allhnfmod	438392
hnf_solve	461153
reverse_rows	465833
ZpM_echelon	528409
hnf_invimage	547535
negcmpii	602156
ZM_snf_group	712942
ZM_hnfall_i	752562
update	771938
ZM_snfall_i	796626
hnfmerge_get_1	816129
bezout_step	820577
reduce1	967385
ZMrow_divexact_inplace	976787
ZM_snfclean	1029820
snf_group	1029822
snf_pile	1071955
ZM_snf_no_divide	1235579
ZM_redpart	1552183
Minus	2059909
col_dup	2617593
col_mul	3087731
FpM_echelon	3364631
ZM_hnfmodprime	3364634
FpM_hnfend	3364868
ZM_reduce	4480060
ZM_hnfmodid	4533719
must_swap	4634037
zlm_echelon	4803215
ZM_hnfmodall	5136516
optimal_D	5185925
ZM_hnfmodall_i	5187860
FpV_Fp_mul_part_ip	5412813
subzi	6481394
count	8160517
hnfswap	8512798
ZC_lincomb1z	21905437
ZC_lincomb1z_i	21912971
FpV_red_part_ipvec	37706232
ZC_elem	41214093
affii2_or_copy_gc	48047167
reduce2	53228348
findi_normalize	106491534
findi	106500652
addzi	240240745
addmulzii	520388358

Generated by: LCOV version 1.16