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 30816-9c15a02229) Lines: 1610 1786 90.1 % Date: 2026-04-15 09:25:30 Functions: 97 107 90.7 % 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
hnfallgen	21
ZM_hnfintersectmod	28
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
normalize_as_RgX	364
ZM_hnfperm	385
smith	385
matsnf0	469
RgC_elem	511
smithclean	693
ZV_hnfgcdext	707
gbezout_step	882
mathnf0	973
is_RgX	2590
ZM_snf	15925
ZM_hnfcenter	25172
ZM_hnfall	29346
hnf_i	62137
ZM_snfall	64239
ZM_hnf	89978
ZV_extgcd	110572
ZV_gcdext_i	111272
hnfadd_i	117492
ZM_hnfmod	162601
hnfspec_i	186361
hnf_divscale	197497
ZV_snfclean	227087
hnf_invscale	275325
ZM_rowrankprofile	303853
hnffinal	303853
ZM_hnflll	309368
ZV_snf_group	316931
ZV_snfall	316931
ZV_allequal	322717
remove_0cols	336184
hnfmodid	438497
allhnfmod	438511
hnf_solve	461152
ZpM_echelon	528215
hnf_invimage	547521
count2	554666
negcmpii	602524
reverse_rows	618705
ZM_hnfall_i	752620
ZM_snf_group	764378
hnfmerge_get_1	815958
update	841929
ZM_snfall_i	848091
bezout_step	890611
reduce1	991087
ZMrow_divexact_inplace	1070761
ZM_snfclean	1081380
snf_group	1081384
snf_pile	1123463
ZM_snf_no_divide	1301837
ZM_redpart	1689862
Minus	2995788
ZM_hnfmodprime	3364191
FpM_echelon	3364194
FpM_hnfend	3364388
col_mul	3367630
col_dup	3769039
ZM_reduce	4476075
ZM_hnfmodid	4537391
zlm_echelon	4802232
ZM_hnfmodall	5140304
optimal_D	5189408
ZM_hnfmodall_i	5191441
FpV_Fp_mul_part_ip	5412027
must_swap	6183431
subzi	7908679
count	10217193
hnfswap	11613061
ZC_lincomb1z	29900453
ZC_lincomb1z_i	29922834
FpV_red_part_ipvec	37723047
ZC_elem	41260238
affii2_or_copy_gc	54237411
reduce2	64275728
findi_normalize	128628327
findi	128653229
addzi	276792691
addmulzii	582867059

Generated by: LCOV version 1.16