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 30483-b6b1f87815) Lines: 1602 1778 90.1 % Date: 2025-09-12 09:24:16 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	25200
ZM_hnfall	29151
hnf_i	61727
ZM_snfall	64197
ZM_hnf	89401
hnfadd_i	92426
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134810
ZM_hnfmod	162567
hnf_divscale	197447
ZV_snfclean	227087
ZM_rowrankprofile	227236
hnffinal	227236
ZM_hnflll	232765
hnf_invscale	275321
ZV_snf_group	316768
ZV_snfall	316768
ZV_allequal	322722
remove_0cols	335598
count2	421073
hnfmodid	438216
allhnfmod	438230
hnf_solve	461152
reverse_rows	465504
ZpM_echelon	528256
hnf_invimage	547293
negcmpii	602136
ZM_snf_group	712854
ZM_hnfall_i	752426
update	771729
ZM_snfall_i	796514
hnfmerge_get_1	816114
bezout_step	820383
reduce1	967385
ZMrow_divexact_inplace	976600
ZM_snfclean	1029711
snf_group	1029716
snf_pile	1071844
ZM_snf_no_divide	1235298
ZM_redpart	1551772
Minus	2058539
col_dup	2616836
col_mul	3086857
ZM_hnfmodprime	3361898
FpM_echelon	3361902
FpM_hnfend	3362097
ZM_reduce	4478498
ZM_hnfmodid	4528922
must_swap	4632995
zlm_echelon	4799244
ZM_hnfmodall	5131506
optimal_D	5180860
ZM_hnfmodall_i	5182829
FpV_Fp_mul_part_ip	5409013
subzi	6460948
count	8149807
hnfswap	8501554
ZC_lincomb1z	21875808
ZC_lincomb1z_i	21883523
FpV_red_part_ipvec	37665832
ZC_elem	41182542
affii2_or_copy_gc	47852918
reduce2	53031991
findi_normalize	106094941
findi	106102067
addzi	239756834
addmulzii	518511318

Generated by: LCOV version 1.16