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 30610-dfc8ed42cd) Lines: 1603 1779 90.1 % Date: 2026-01-14 09:22:13 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	25171
ZM_hnfall	29351
hnf_i	61709
ZM_snfall	64190
ZM_hnf	89555
hnfadd_i	92570
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134570
ZM_hnfmod	162553
hnf_divscale	197478
ZV_snfclean	227089
hnffinal	227138
ZM_rowrankprofile	227139
ZM_hnflll	232669
hnf_invscale	275323
ZV_snf_group	316795
ZV_snfall	316795
ZV_allequal	322713
remove_0cols	335783
count2	420919
hnfmodid	438104
allhnfmod	438118
hnf_solve	461154
reverse_rows	465323
ZpM_echelon	528153
hnf_invimage	547536
negcmpii	602155
ZM_snf_group	712642
ZM_hnfall_i	752625
update	771701
ZM_snfall_i	796303
hnfmerge_get_1	815976
bezout_step	820354
reduce1	967385
ZMrow_divexact_inplace	976384
ZM_snfclean	1029509
snf_group	1029513
snf_pile	1071640
ZM_snf_no_divide	1235269
ZM_redpart	1551728
Minus	2055308
col_dup	2614727
col_mul	3086769
FpM_echelon	3364223
ZM_hnfmodprime	3364245
FpM_hnfend	3364330
ZM_reduce	4472489
ZM_hnfmodid	4536540
must_swap	4619090
zlm_echelon	4801516
ZM_hnfmodall	5139042
optimal_D	5187977
ZM_hnfmodall_i	5190135
FpV_Fp_mul_part_ip	5411457
subzi	6468149
count	8159799
hnfswap	8497581
ZC_lincomb1z	21856137
ZC_lincomb1z_i	21866535
FpV_red_part_ipvec	37708135
ZC_elem	41205434
affii2_or_copy_gc	47963929
reduce2	53147303
findi_normalize	106321323
findi	106327161
addzi	239450361
addmulzii	519035829

Generated by: LCOV version 1.16