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 30851-7844d7b3a5) Lines: 1610 1786 90.1 % Date: 2026-05-03 09:26:29 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364241
FpM_hnfend	3364486
FpV_Fp_mul_part_ip	5411959
FpV_red_part_ipvec	37723969
Minus	2995957
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41262615
ZC_lincomb1z	29908274
ZC_lincomb1z_i	29930363
ZM_hnf	90378
ZM_hnf_knapsack	238
ZM_hnfall	29380
ZM_hnfall_i	752657
ZM_hnfcenter	25171
ZM_hnfintersectmod	28
ZM_hnflll	309255
ZM_hnfmod	162607
ZM_hnfmodall	5140694
ZM_hnfmodall_i	5191812
ZM_hnfmodid	4537755
ZM_hnfmodprime	3364228
ZM_hnfperm	385
ZM_redpart	1689314
ZM_reduce	4477444
ZM_rowrankprofile	303743
ZM_snf	15925
ZM_snf_group	764364
ZM_snf_no_divide	1301677
ZM_snfall	64238
ZM_snfall_i	848073
ZM_snfclean	1081406
ZMrow_divexact_inplace	1070800
ZV_allequal	322716
ZV_extgcd	110572
ZV_gcdext_i	111776
ZV_hnfgcdext	1211
ZV_snf_group	316931
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316931
ZV_snfclean	227091
ZpM_echelon	528228
addmulzii	583221557
addzi	277175299
affii2_or_copy_gc	54241724
allhnfmod	438533
bezout_step	890383
col_dup	3769211
col_mul	3366811
count	10217932
count2	554531
do_zero	0
findi	128667606
findi_normalize	128650791
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197516
hnf_i	62503
hnf_invimage	547539
hnf_invscale	275320
hnf_solve	461164
hnfadd	0
hnfadd_i	117379
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303741
hnflll	7
hnfmerge_get_1	815980
hnfmod	14
hnfmodid	438519
hnfperm	14
hnfspec	0
hnfspec_i	186362
hnfswap	11617280
is_RgX	2590
mathnf0	1477
mathnfspec	0
matsnf0	469
must_swap	6190549
negcmpii	602515
normalize_as_RgX	364
optimal_D	5189883
p_mat	0
reduce1	1013907
reduce2	64294647
remove_0cols	336595
reverse_rows	618483
smith	385
smithall	35
smithclean	693
snf_group	1081410
snf_pile	1123470
snf_pile1	48
snfrank	154
subzi	7908632
trivsmith	0
update	841732
zlm_echelon	4802390
zv_snf_rank	0

Generated by: LCOV version 1.16