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 30793-1ceee7ca5f) Lines: 1610 1786 90.1 % Date: 2026-04-10 09:27:03 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	25172
ZM_hnfall	29371
hnf_i	62125
ZM_snfall	64239
ZM_hnf	89991
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117454
ZM_hnfmod	162602
hnfspec_i	186347
hnf_divscale	197480
ZV_snfclean	227083
hnf_invscale	275323
ZM_rowrankprofile	303807
hnffinal	303808
ZM_hnflll	309322
ZV_snf_group	316939
ZV_snfall	316939
ZV_allequal	322716
remove_0cols	336215
hnfmodid	438487
allhnfmod	438501
hnf_solve	461144
ZpM_echelon	528229
hnf_invimage	547524
count2	554822
negcmpii	602528
reverse_rows	618610
ZM_hnfall_i	752650
ZM_snf_group	764382
hnfmerge_get_1	815955
update	842014
ZM_snfall_i	848084
bezout_step	890658
reduce1	967385
ZMrow_divexact_inplace	1070777
ZM_snfclean	1081395
snf_group	1081400
snf_pile	1123470
ZM_snf_no_divide	1301848
ZM_redpart	1689875
Minus	2995668
FpM_echelon	3364212
ZM_hnfmodprime	3364225
FpM_hnfend	3364397
col_mul	3368018
col_dup	3768952
ZM_reduce	4476131
ZM_hnfmodid	4537421
zlm_echelon	4802403
ZM_hnfmodall	5140360
optimal_D	5189540
ZM_hnfmodall_i	5191476
FpV_Fp_mul_part_ip	5411776
must_swap	6178273
subzi	7912354
count	10215777
hnfswap	11610030
ZC_lincomb1z	29913666
ZC_lincomb1z_i	29942127
FpV_red_part_ipvec	37723185
ZC_elem	41261213
affii2_or_copy_gc	54244036
reduce2	64307631
findi_normalize	128681675
findi	128707643
addzi	277028208
addmulzii	582902178

Generated by: LCOV version 1.16