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 30735-65f72320ad) Lines: 1603 1779 90.1 % Date: 2026-03-12 09:23:43 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	25166
ZM_hnfall	29294
hnf_i	61763
ZM_snfall	64239
ZM_hnf	89552
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	116919
ZM_hnfmod	162599
hnfspec_i	186347
hnf_divscale	197495
ZV_snfclean	227090
hnf_invscale	275326
ZM_rowrankprofile	303267
hnffinal	303268
ZM_hnflll	308796
ZV_snf_group	316938
ZV_snfall	316938
ZV_allequal	322711
remove_0cols	335794
hnfmodid	438495
allhnfmod	438509
hnf_solve	461172
ZpM_echelon	528223
hnf_invimage	547534
count2	554456
negcmpii	602529
reverse_rows	617561
ZM_hnfall_i	752567
ZM_snf_group	764388
hnfmerge_get_1	815972
update	842013
ZM_snfall_i	848098
bezout_step	890607
reduce1	967385
ZMrow_divexact_inplace	1070811
ZM_snfclean	1081376
snf_group	1081385
snf_pile	1123502
ZM_snf_no_divide	1301956
ZM_redpart	1690300
Minus	2992370
FpM_echelon	3364186
ZM_hnfmodprime	3364218
FpM_hnfend	3364412
col_mul	3367995
col_dup	3769003
ZM_reduce	4474181
ZM_hnfmodid	4537320
zlm_echelon	4802270
ZM_hnfmodall	5140262
optimal_D	5189445
ZM_hnfmodall_i	5191370
FpV_Fp_mul_part_ip	5412046
must_swap	6168680
subzi	7904028
count	10215437
hnfswap	11596462
ZC_lincomb1z	29899279
ZC_lincomb1z_i	29919146
FpV_red_part_ipvec	37729536
ZC_elem	41267014
affii2_or_copy_gc	54266467
reduce2	64257537
findi_normalize	128513567
findi	128545356
addzi	277444087
addmulzii	583208373

Generated by: LCOV version 1.16