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 30786-ffec283a2b) Lines: 1612 1786 90.3 % Date: 2026-04-07 09:25:56 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
ZV_hnfgcdext	21
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
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	25169
ZM_hnfall	29323
hnf_i	62123
ZM_snfall	64239
ZM_hnf	89941
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117312
ZM_hnfmod	162600
hnfspec_i	186346
hnf_divscale	197488
ZV_snfclean	227085
hnf_invscale	275314
hnffinal	303662
ZM_rowrankprofile	303663
ZM_hnflll	309177
ZV_snf_group	316936
ZV_snfall	316936
ZV_allequal	322714
remove_0cols	336155
hnfmodid	438491
allhnfmod	438505
hnf_solve	461151
ZpM_echelon	528202
hnf_invimage	547520
count2	554931
negcmpii	602524
reverse_rows	618322
ZM_hnfall_i	752595
ZM_snf_group	764372
hnfmerge_get_1	815967
update	841901
ZM_snfall_i	848085
bezout_step	890565
reduce1	967385
ZMrow_divexact_inplace	1070749
ZM_snfclean	1081381
snf_group	1081384
snf_pile	1123472
ZM_snf_no_divide	1301782
ZM_redpart	1689760
Minus	2995648
ZM_hnfmodprime	3364162
FpM_echelon	3364165
FpM_hnfend	3364400
col_mul	3367477
col_dup	3768837
ZM_reduce	4474165
ZM_hnfmodid	4537200
zlm_echelon	4802117
ZM_hnfmodall	5140126
optimal_D	5189203
ZM_hnfmodall_i	5191237
FpV_Fp_mul_part_ip	5412106
must_swap	6174377
subzi	7908477
count	10216121
hnfswap	11604573
ZC_lincomb1z	29906045
ZC_lincomb1z_i	29928459
FpV_red_part_ipvec	37721150
ZC_elem	41256552
affii2_or_copy_gc	54238458
reduce2	64281366
findi_normalize	128613231
findi	128638133
addzi	277126281
addmulzii	583249124

Generated by: LCOV version 1.16