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 30660-09c6d0ed2e) Lines: 1603 1779 90.1 % Date: 2026-02-03 09:23:21 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364258
FpM_hnfend	3364400
FpV_Fp_mul_part_ip	5411495
FpV_red_part_ipvec	37716684
Minus	2056559
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41223724
ZC_lincomb1z	21875044
ZC_lincomb1z_i	21882935
ZM_hnf	89612
ZM_hnf_knapsack	238
ZM_hnfall	29389
ZM_hnfall_i	752671
ZM_hnfcenter	25162
ZM_hnflll	232830
ZM_hnfmod	162550
ZM_hnfmodall	5139600
ZM_hnfmodall_i	5190688
ZM_hnfmodid	4537095
ZM_hnfmodprime	3364119
ZM_hnfperm	385
ZM_redpart	1551876
ZM_reduce	4482234
ZM_rowrankprofile	227301
ZM_snf	15925
ZM_snf_group	712649
ZM_snf_no_divide	1235324
ZM_snfall	64190
ZM_snfall_i	796309
ZM_snfclean	1029521
ZMrow_divexact_inplace	976406
ZV_allequal	322716
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316801
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316801
ZV_snfclean	227089
ZpM_echelon	528152
addmulzii	519331483
addzi	239762997
affii2_or_copy_gc	47979674
allhnfmod	438119
bezout_step	820422
col_dup	2614835
col_mul	3087101
count	8160837
count2	421185
do_zero	0
findi	106365571
findi_normalize	106366229
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197488
hnf_i	61729
hnf_invimage	547528
hnf_invscale	275327
hnf_solve	461156
hnfadd	0
hnfadd_i	92723
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227300
hnflll	7
hnfmerge_get_1	815997
hnfmod	14
hnfmodid	438105
hnfperm	14
hnfspec	0
hnfspec_i	134578
hnfswap	8502576
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4622884
negcmpii	602164
normalize_as_RgX	364
optimal_D	5188710
p_mat	0
reduce1	967385
reduce2	53172654
remove_0cols	335847
reverse_rows	465651
smith	385
smithall	35
smithclean	693
snf_group	1029528
snf_pile	1071652
snf_pile1	48
snfrank	154
subzi	6471055
trivsmith	0
update	771791
zlm_echelon	4801723
zv_snf_rank	0

Generated by: LCOV version 1.16