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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 90.2 % 1787 1611 Test Date: 2026-07-23 17:04:59 Functions: 90.7 % 107 97 Legend: Lines:     hit not hit

Function Name	Hit count
FpM_echelon	3366410
FpM_hnfend	3366410
FpV_Fp_mul_part_ip	5420872
FpV_red_part_ipvec	37830162
Minus	2997278
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41407713
ZC_lincomb1z	30080471
ZC_lincomb1z_i	30080471
ZM_hnf	90247
ZM_hnf_knapsack	238
ZM_hnfall	29170
ZM_hnfall_i	752457
ZM_hnfcenter	25387
ZM_hnfintersectmod	28
ZM_hnflll	309360
ZM_hnfmod	162656
ZM_hnfmodall	5145621
ZM_hnfmodall_i	5196851
ZM_hnfmodid	4542452
ZM_hnfmodprime	3366410
ZM_hnfperm	385
ZM_redpart	1690757
ZM_reduce	4454982
ZM_rowrankprofile	303844
ZM_snf	16184
ZM_snf_group	764697
ZM_snf_no_divide	1302063
ZM_snfall	64246
ZM_snfall_i	848676
ZM_snfclean	1081644
ZMrow_divexact_inplace	1071268
ZV_allequal	322729
ZV_extgcd	110579
ZV_gcdext_i	111734
ZV_hnfgcdext	1162
ZV_snf_group	316947
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316947
ZV_snfclean	227101
ZpM_echelon	529499
addmulzii	592164488
addzi	283906255
affii2_or_copy_gc	54526249
allhnfmod	438580
bezout_step	891006
col_dup	3771826
col_mul	3369760
count	10218390
count2	555329
do_zero	0
findi	129171008
findi_normalize	129171008
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197801
hnf_i	62582
hnf_invimage	547578
hnf_invscale	275331
hnf_solve	461209
hnfadd	0
hnfadd_i	117278
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303844
hnflll	7
hnfmerge_get_1	816035
hnfmod	14
hnfmodid	438566
hnfperm	14
hnfspec	0
hnfspec_i	186566
hnfswap	11659440
is_RgX	2590
mathnf0	1428
mathnfspec	0
matsnf0	469
must_swap	6205727
negcmpii	602537
normalize_as_RgX	364
optimal_D	5195213
p_mat	0
reduce1	1016504
reduce2	64584596
remove_0cols	336479
reverse_rows	618720
smith	385
smithall	35
smithclean	952
snf_group	1081644
snf_pile	1124029
snf_pile1	48
snfrank	154
subzi	7929808
trivsmith	0
update	842440
zlm_echelon	4808736
zv_snf_rank	0

Generated by: LCOV version 2.0-1