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
FpM_echelon	3364016
FpM_hnfend	3364253
FpV_Fp_mul_part_ip	5411486
FpV_red_part_ipvec	37678168
Minus	2058753
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41186440
ZC_lincomb1z	21867231
ZC_lincomb1z_i	21874441
ZM_hnf	89396
ZM_hnf_knapsack	238
ZM_hnfall	29177
ZM_hnfall_i	752455
ZM_hnfcenter	25194
ZM_hnflll	232776
ZM_hnfmod	162581
ZM_hnfmodall	5133712
ZM_hnfmodall_i	5185023
ZM_hnfmodid	4531115
ZM_hnfmodprime	3364031
ZM_hnfperm	385
ZM_redpart	1552051
ZM_reduce	4477120
ZM_rowrankprofile	227246
ZM_snf	15925
ZM_snf_group	712891
ZM_snf_no_divide	1235388
ZM_snfall	64202
ZM_snfall_i	796558
ZM_snfclean	1029779
ZMrow_divexact_inplace	976605
ZV_allequal	322719
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316802
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316802
ZV_snfclean	227089
ZpM_echelon	528392
addmulzii	518440084
addzi	239612099
affii2_or_copy_gc	47841866
allhnfmod	438231
bezout_step	820537
col_dup	2616912
col_mul	3087511
count	8148810
count2	421121
do_zero	0
findi	106071321
findi_normalize	106064471
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197445
hnf_i	61724
hnf_invimage	547289
hnf_invscale	275337
hnf_solve	461151
hnfadd	0
hnfadd_i	92427
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227246
hnflll	7
hnfmerge_get_1	816127
hnfmod	14
hnfmodid	438217
hnfperm	14
hnfspec	0
hnfspec_i	134820
hnfswap	8500564
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4632112
negcmpii	602161
normalize_as_RgX	364
optimal_D	5183004
p_mat	0
reduce1	967385
reduce2	53017276
remove_0cols	335638
reverse_rows	465532
smith	385
smithall	35
smithclean	693
snf_group	1029782
snf_pile	1071891
snf_pile1	48
snfrank	154
subzi	6459878
trivsmith	0
update	771889
zlm_echelon	4801535
zv_snf_rank	0

Generated by: LCOV version 1.16