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 30364-8108102770) Lines: 1602 1778 90.1 % Date: 2025-06-30 09:21:07 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3361221
FpM_hnfend	3361461
FpV_Fp_mul_part_ip	5407975
FpV_red_part_ipvec	37665230
Minus	2057535
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41179896
ZC_lincomb1z	21847601
ZC_lincomb1z_i	21856323
ZM_hnf	89412
ZM_hnf_knapsack	238
ZM_hnfall	29175
ZM_hnfall_i	752444
ZM_hnfcenter	25198
ZM_hnflll	232793
ZM_hnfmod	162504
ZM_hnfmodall	5131263
ZM_hnfmodall_i	5182579
ZM_hnfmodid	4528498
ZM_hnfmodprime	3361236
ZM_hnfperm	385
ZM_redpart	1551864
ZM_reduce	4478887
ZM_rowrankprofile	227284
ZM_snf	15869
ZM_snf_group	712842
ZM_snf_no_divide	1235239
ZM_snfall	64190
ZM_snfall_i	796447
ZM_snfclean	1029664
ZMrow_divexact_inplace	976590
ZV_allequal	322724
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316753
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316753
ZV_snfclean	227083
ZpM_echelon	528260
addmulzii	517735463
addzi	239171641
affii2_or_copy_gc	47794165
allhnfmod	438198
bezout_step	820445
col_dup	2615023
col_mul	3087234
count	8103229
count2	420881
do_zero	0
findi	106019171
findi_normalize	106008783
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197410
hnf_i	61714
hnf_invimage	547278
hnf_invscale	275317
hnf_solve	461154
hnfadd	0
hnfadd_i	92496
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227284
hnflll	7
hnfmerge_get_1	816116
hnfmod	14
hnfmodid	438184
hnfperm	14
hnfspec	0
hnfspec_i	134787
hnfswap	8496257
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4631736
negcmpii	602112
normalize_as_RgX	364
optimal_D	5180596
p_mat	0
reduce1	967385
reduce2	52987742
remove_0cols	335601
reverse_rows	465564
smith	385
smithall	35
smithclean	693
snf_group	1029673
snf_pile	1071741
snf_pile1	48
snfrank	154
subzi	6458733
trivsmith	0
update	771843
zlm_echelon	4797609
zv_snf_rank	0

Generated by: LCOV version 1.16