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 30590-f14e077362) Lines: 1603 1779 90.1 % Date: 2026-01-01 09:21:12 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	25168
ZM_hnfall	29157
hnf_i	61697
ZM_snfall	64182
ZM_hnf	89349
hnfadd_i	92366
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134563
ZM_hnfmod	162544
hnf_divscale	197500
ZM_rowrankprofile	226928
hnffinal	226928
ZV_snfclean	227054
ZM_hnflll	232458
hnf_invscale	275325
ZV_snf_group	316801
ZV_snfall	316801
ZV_allequal	322717
remove_0cols	335583
count2	421001
hnfmodid	438196
allhnfmod	438210
hnf_solve	461151
reverse_rows	464883
ZpM_echelon	528141
hnf_invimage	547520
negcmpii	602161
ZM_snf_group	712666
ZM_hnfall_i	752432
update	771779
ZM_snfall_i	796322
hnfmerge_get_1	815977
bezout_step	820402
reduce1	967385
ZMrow_divexact_inplace	976468
ZM_snfclean	1029507
snf_group	1029513
snf_pile	1071658
ZM_snf_no_divide	1235295
ZM_redpart	1551810
Minus	2056323
col_dup	2614852
col_mul	3087068
FpM_echelon	3364133
ZM_hnfmodprime	3364146
FpM_hnfend	3364330
ZM_reduce	4469621
ZM_hnfmodid	4531744
must_swap	4624758
zlm_echelon	4801462
ZM_hnfmodall	5134337
optimal_D	5183409
ZM_hnfmodall_i	5185468
FpV_Fp_mul_part_ip	5411488
subzi	6476330
count	8159031
hnfswap	8500917
ZC_lincomb1z	21885238
ZC_lincomb1z_i	21894965
FpV_red_part_ipvec	37689439
ZC_elem	41186427
affii2_or_copy_gc	48028273
reduce2	53189353
findi_normalize	106400235
findi	106407292
addzi	240341728
addmulzii	520426102

Generated by: LCOV version 1.16