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 30809-023acc7158) Lines: 1610 1786 90.1 % Date: 2026-04-13 09:26:12 Functions: 97 107 90.7 % 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
hnfallgen	21
ZM_hnfintersectmod	28
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
normalize_as_RgX	364
ZM_hnfperm	385
smith	385
matsnf0	469
RgC_elem	511
smithclean	693
ZV_hnfgcdext	707
gbezout_step	882
mathnf0	973
is_RgX	2590
ZM_snf	15925
ZM_hnfcenter	25169
ZM_hnfall	29320
hnf_i	62124
ZM_snfall	64239
ZM_hnf	89939
ZV_extgcd	110572
ZV_gcdext_i	111272
hnfadd_i	117471
ZM_hnfmod	162603
hnfspec_i	186363
hnf_divscale	197478
ZV_snfclean	227089
hnf_invscale	275318
ZM_rowrankprofile	303835
hnffinal	303837
ZM_hnflll	309351
ZV_snf_group	316931
ZV_snfall	316931
ZV_allequal	322713
remove_0cols	336158
hnfmodid	438494
allhnfmod	438508
hnf_solve	461149
ZpM_echelon	528219
hnf_invimage	547530
count2	555031
negcmpii	602518
reverse_rows	618663
ZM_hnfall_i	752596
ZM_snf_group	764362
hnfmerge_get_1	815982
update	841705
ZM_snfall_i	848074
bezout_step	890374
reduce1	991087
ZMrow_divexact_inplace	1070772
ZM_snfclean	1081393
snf_group	1081394
snf_pile	1123482
ZM_snf_no_divide	1301703
ZM_redpart	1689445
Minus	2996559
FpM_echelon	3364199
ZM_hnfmodprime	3364199
FpM_hnfend	3364400
col_mul	3366684
col_dup	3769075
ZM_reduce	4473930
ZM_hnfmodid	4537101
zlm_echelon	4802325
ZM_hnfmodall	5140050
optimal_D	5189163
ZM_hnfmodall_i	5191170
FpV_Fp_mul_part_ip	5411865
must_swap	6186931
subzi	7913227
count	10215374
hnfswap	11617067
ZC_lincomb1z	29909020
ZC_lincomb1z_i	29933476
FpV_red_part_ipvec	37716830
ZC_elem	41251864
affii2_or_copy_gc	54247070
reduce2	64289953
findi_normalize	128654457
findi	128679951
addzi	276878145
addmulzii	583079671

Generated by: LCOV version 1.16