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 30565-738e569de9) Lines: 1603 1779 90.1 % Date: 2025-11-30 09:23:42 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	25194
ZM_hnfall	29177
hnf_i	61724
ZM_snfall	64202
ZM_hnf	89396
hnfadd_i	92427
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134820
ZM_hnfmod	162581
hnf_divscale	197445
ZV_snfclean	227089
ZM_rowrankprofile	227246
hnffinal	227246
ZM_hnflll	232776
hnf_invscale	275337
ZV_snf_group	316802
ZV_snfall	316802
ZV_allequal	322719
remove_0cols	335638
count2	421121
hnfmodid	438217
allhnfmod	438231
hnf_solve	461151
reverse_rows	465532
ZpM_echelon	528392
hnf_invimage	547289
negcmpii	602161
ZM_snf_group	712891
ZM_hnfall_i	752455
update	771889
ZM_snfall_i	796558
hnfmerge_get_1	816127
bezout_step	820537
reduce1	967385
ZMrow_divexact_inplace	976605
ZM_snfclean	1029779
snf_group	1029782
snf_pile	1071891
ZM_snf_no_divide	1235388
ZM_redpart	1552051
Minus	2058753
col_dup	2616912
col_mul	3087511
FpM_echelon	3364016
ZM_hnfmodprime	3364031
FpM_hnfend	3364253
ZM_reduce	4477120
ZM_hnfmodid	4531115
must_swap	4632112
zlm_echelon	4801535
ZM_hnfmodall	5133712
optimal_D	5183004
ZM_hnfmodall_i	5185023
FpV_Fp_mul_part_ip	5411486
subzi	6459878
count	8148810
hnfswap	8500564
ZC_lincomb1z	21867231
ZC_lincomb1z_i	21874441
FpV_red_part_ipvec	37678168
ZC_elem	41186440
affii2_or_copy_gc	47841866
reduce2	53017276
findi_normalize	106064471
findi	106071321
addzi	239612099
addmulzii	518440084

Generated by: LCOV version 1.16