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 30573-61accf17c8) Lines: 1603 1779 90.1 % Date: 2025-12-16 09:22:09 Functions: 96 106 90.6 % 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
ZV_hnfgcdext	21
hnfallgen	21
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
mathnf0	287
normalize_as_RgX	364
ZM_hnfperm	385
smith	385
matsnf0	469
RgC_elem	511
smithclean	693
gbezout_step	882
is_RgX	2590
ZM_snf	15925
ZM_hnfcenter	25208
ZM_hnfall	29257
hnf_i	61730
ZM_snfall	64218
ZM_hnf	89482
hnfadd_i	92563
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134830
ZM_hnfmod	162600
hnf_divscale	197686
ZV_snfclean	227092
ZM_rowrankprofile	227393
hnffinal	227393
ZM_hnflll	232923
hnf_invscale	275366
ZV_snf_group	316786
ZV_snfall	316793
ZV_allequal	322742
remove_0cols	335707
count2	421244
hnfmodid	438374
allhnfmod	438388
hnf_solve	461141
reverse_rows	465832
ZpM_echelon	528407
hnf_invimage	547511
negcmpii	602154
ZM_snf_group	712944
ZM_hnfall_i	752554
update	771914
ZM_snfall_i	796632
hnfmerge_get_1	816121
bezout_step	820572
reduce1	967385
ZMrow_divexact_inplace	976798
ZM_snfclean	1029827
snf_group	1029830
snf_pile	1071971
ZM_snf_no_divide	1235540
ZM_redpart	1552113
Minus	2060266
col_dup	2617590
col_mul	3087603
ZM_hnfmodprime	3364636
FpM_echelon	3364640
FpM_hnfend	3364855
ZM_reduce	4478398
ZM_hnfmodid	4533654
must_swap	4633066
zlm_echelon	4803169
ZM_hnfmodall	5136417
optimal_D	5185813
ZM_hnfmodall_i	5187757
FpV_Fp_mul_part_ip	5412777
subzi	6482633
count	8161899
hnfswap	8511961
ZC_lincomb1z	21904446
ZC_lincomb1z_i	21912093
FpV_red_part_ipvec	37705636
ZC_elem	41209397
affii2_or_copy_gc	48043299
reduce2	53227877
findi_normalize	106487671
findi	106496875
addzi	240198607
addmulzii	520310844

Generated by: LCOV version 1.16