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
FpM_echelon	3364133
FpM_hnfend	3364330
FpV_Fp_mul_part_ip	5411488
FpV_red_part_ipvec	37689439
Minus	2056323
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41186427
ZC_lincomb1z	21885238
ZC_lincomb1z_i	21894965
ZM_hnf	89349
ZM_hnf_knapsack	238
ZM_hnfall	29157
ZM_hnfall_i	752432
ZM_hnfcenter	25168
ZM_hnflll	232458
ZM_hnfmod	162544
ZM_hnfmodall	5134337
ZM_hnfmodall_i	5185468
ZM_hnfmodid	4531744
ZM_hnfmodprime	3364146
ZM_hnfperm	385
ZM_redpart	1551810
ZM_reduce	4469621
ZM_rowrankprofile	226928
ZM_snf	15925
ZM_snf_group	712666
ZM_snf_no_divide	1235295
ZM_snfall	64182
ZM_snfall_i	796322
ZM_snfclean	1029507
ZMrow_divexact_inplace	976468
ZV_allequal	322717
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316801
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316801
ZV_snfclean	227054
ZpM_echelon	528141
addmulzii	520426102
addzi	240341728
affii2_or_copy_gc	48028273
allhnfmod	438210
bezout_step	820402
col_dup	2614852
col_mul	3087068
count	8159031
count2	421001
do_zero	0
findi	106407292
findi_normalize	106400235
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197500
hnf_i	61697
hnf_invimage	547520
hnf_invscale	275325
hnf_solve	461151
hnfadd	0
hnfadd_i	92366
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	226928
hnflll	7
hnfmerge_get_1	815977
hnfmod	14
hnfmodid	438196
hnfperm	14
hnfspec	0
hnfspec_i	134563
hnfswap	8500917
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4624758
negcmpii	602161
normalize_as_RgX	364
optimal_D	5183409
p_mat	0
reduce1	967385
reduce2	53189353
remove_0cols	335583
reverse_rows	464883
smith	385
smithall	35
smithclean	693
snf_group	1029513
snf_pile	1071658
snf_pile1	48
snfrank	154
subzi	6476330
trivsmith	0
update	771779
zlm_echelon	4801462
zv_snf_rank	0

Generated by: LCOV version 1.16