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 v2.19.0 lcov report (development 31092-e6893b0017) Lines: 90.2 % 1787 1611 Test Date: 2026-09-06 17:02:10 Functions: 90.7 % 107 97 Legend: Lines:     hit not hit

Function Name	Hit count
FpM_echelon	3366415
FpM_hnfend	3366415
FpV_Fp_mul_part_ip	5411968
FpV_red_part_ipvec	37983406
Minus	2998447
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41515861
ZC_lincomb1z	30075378
ZC_lincomb1z_i	30075378
ZM_hnf	90282
ZM_hnf_knapsack	238
ZM_hnfall	29168
ZM_hnfall_i	752503
ZM_hnfcenter	25384
ZM_hnfintersectmod	28
ZM_hnflll	309340
ZM_hnfmod	159548
ZM_hnfmodall	5170791
ZM_hnfmodall_i	5222033
ZM_hnfmodid	4570726
ZM_hnfmodprime	3366415
ZM_hnfperm	385
ZM_redpart	1690624
ZM_reduce	4461878
ZM_rowrankprofile	303824
ZM_snf	16184
ZM_snf_group	764698
ZM_snf_no_divide	1301994
ZM_snfall	64246
ZM_snfall_i	848677
ZM_snfclean	1081645
ZMrow_divexact_inplace	1071270
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	529493
addmulzii	592125565
addzi	283857771
affii2_or_copy_gc	54524219
allhnfmod	438584
bezout_step	890909
col_dup	3771913
col_mul	3369372
count	10217213
count2	555212
do_zero	0
findi	129188106
findi_normalize	129188106
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	213298
hnf_i	62619
hnf_invimage	547578
hnf_invscale	275331
hnf_solve	461209
hnfadd	0
hnfadd_i	117252
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303824
hnflll	7
hnfmerge_get_1	816035
hnfmod	14
hnfmodid	438570
hnfperm	14
hnfspec	0
hnfspec_i	186572
hnfswap	11659787
is_RgX	2590
mathnf0	1428
mathnfspec	0
matsnf0	469
must_swap	6205325
negcmpii	602537
normalize_as_RgX	364
optimal_D	5220395
p_mat	0
reduce1	1016504
reduce2	64593145
remove_0cols	336514
reverse_rows	618680
smith	385
smithall	35
smithclean	952
snf_group	1081645
snf_pile	1124030
snf_pile1	48
snfrank	154
subzi	7929456
trivsmith	0
update	842343
zlm_echelon	4808727
zv_snf_rank	0

Generated by: LCOV version 2.0-1