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 30735-65f72320ad) Lines: 1603 1779 90.1 % Date: 2026-03-11 09:24:10 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	25170
ZM_hnfall	29327
hnf_i	61778
ZM_snfall	64239
ZM_hnf	89600
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117077
ZM_hnfmod	162602
hnfspec_i	186366
hnf_divscale	197487
ZV_snfclean	227089
hnf_invscale	275323
ZM_rowrankprofile	303439
hnffinal	303441
ZM_hnflll	308971
ZV_snf_group	316943
ZV_snfall	316943
ZV_allequal	322714
remove_0cols	335837
hnfmodid	438493
allhnfmod	438507
hnf_solve	461162
ZpM_echelon	528222
hnf_invimage	547536
count2	554724
negcmpii	602526
reverse_rows	617915
ZM_hnfall_i	752601
ZM_snf_group	764414
hnfmerge_get_1	815977
update	841945
ZM_snfall_i	848126
bezout_step	890584
reduce1	967385
ZMrow_divexact_inplace	1070846
ZM_snfclean	1081395
snf_group	1081400
snf_pile	1123496
ZM_snf_no_divide	1301902
ZM_redpart	1690139
Minus	2993402
FpM_echelon	3364249
ZM_hnfmodprime	3364251
FpM_hnfend	3364298
col_mul	3367721
col_dup	3769252
ZM_reduce	4473578
ZM_hnfmodid	4537641
zlm_echelon	4802459
ZM_hnfmodall	5140584
optimal_D	5189773
ZM_hnfmodall_i	5191686
FpV_Fp_mul_part_ip	5412090
must_swap	6169299
subzi	7907975
count	10216501
hnfswap	11599819
ZC_lincomb1z	29912993
ZC_lincomb1z_i	29934416
FpV_red_part_ipvec	37731362
ZC_elem	41267067
affii2_or_copy_gc	54278075
reduce2	64283913
findi_normalize	128575776
findi	128583479
addzi	277861563
addmulzii	583821473

Generated by: LCOV version 1.16