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 30711-c92306d4b4) Lines: 1603 1779 90.1 % Date: 2026-02-24 09:25:14 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	25164
ZM_hnfall	29334
hnf_i	61733
ZM_snfall	64189
ZM_hnf	89562
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117232
ZM_hnfmod	162554
hnfspec_i	186304
hnf_divscale	197477
ZV_snfclean	227097
hnf_invscale	275326
ZM_rowrankprofile	303540
hnffinal	303544
ZM_hnflll	309073
ZV_snf_group	316942
ZV_snfall	316942
ZV_allequal	322715
remove_0cols	335798
hnfmodid	438105
allhnfmod	438118
hnf_solve	461156
ZpM_echelon	528146
hnf_invimage	547531
count2	554575
negcmpii	602526
reverse_rows	618125
ZM_hnfall_i	752613
ZM_snf_group	764409
hnfmerge_get_1	815991
update	841955
ZM_snfall_i	848066
bezout_step	890576
reduce1	967385
ZMrow_divexact_inplace	1070813
ZM_snfclean	1081407
snf_group	1081408
snf_pile	1123501
ZM_snf_no_divide	1301905
ZM_redpart	1690120
Minus	2993042
FpM_echelon	3364301
ZM_hnfmodprime	3364308
FpM_hnfend	3364422
col_mul	3367749
col_dup	3768538
ZM_reduce	4472560
ZM_hnfmodid	4537052
zlm_echelon	4801653
ZM_hnfmodall	5139574
optimal_D	5188890
ZM_hnfmodall_i	5190696
FpV_Fp_mul_part_ip	5411671
must_swap	6170699
subzi	7906387
count	10214892
hnfswap	11600384
ZC_lincomb1z	29913708
ZC_lincomb1z_i	29926868
FpV_red_part_ipvec	37721942
ZC_elem	41243741
affii2_or_copy_gc	54267797
reduce2	64297632
findi_normalize	128649736
findi	128675797
addzi	277980787
addmulzii	583969510

Generated by: LCOV version 1.16