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
FpM_echelon	3364640
FpM_hnfend	3364855
FpV_Fp_mul_part_ip	5412777
FpV_red_part_ipvec	37705636
Minus	2060266
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41209397
ZC_lincomb1z	21904446
ZC_lincomb1z_i	21912093
ZM_hnf	89482
ZM_hnf_knapsack	238
ZM_hnfall	29257
ZM_hnfall_i	752554
ZM_hnfcenter	25208
ZM_hnflll	232923
ZM_hnfmod	162600
ZM_hnfmodall	5136417
ZM_hnfmodall_i	5187757
ZM_hnfmodid	4533654
ZM_hnfmodprime	3364636
ZM_hnfperm	385
ZM_redpart	1552113
ZM_reduce	4478398
ZM_rowrankprofile	227393
ZM_snf	15925
ZM_snf_group	712944
ZM_snf_no_divide	1235540
ZM_snfall	64218
ZM_snfall_i	796632
ZM_snfclean	1029827
ZMrow_divexact_inplace	976798
ZV_allequal	322742
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316786
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316793
ZV_snfclean	227092
ZpM_echelon	528407
addmulzii	520310844
addzi	240198607
affii2_or_copy_gc	48043299
allhnfmod	438388
bezout_step	820572
col_dup	2617590
col_mul	3087603
count	8161899
count2	421244
do_zero	0
findi	106496875
findi_normalize	106487671
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197686
hnf_i	61730
hnf_invimage	547511
hnf_invscale	275366
hnf_solve	461141
hnfadd	0
hnfadd_i	92563
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227393
hnflll	7
hnfmerge_get_1	816121
hnfmod	14
hnfmodid	438374
hnfperm	14
hnfspec	0
hnfspec_i	134830
hnfswap	8511961
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4633066
negcmpii	602154
normalize_as_RgX	364
optimal_D	5185813
p_mat	0
reduce1	967385
reduce2	53227877
remove_0cols	335707
reverse_rows	465832
smith	385
smithall	35
smithclean	693
snf_group	1029830
snf_pile	1071971
snf_pile1	48
snfrank	154
subzi	6482633
trivsmith	0
update	771914
zlm_echelon	4803169
zv_snf_rank	0

Generated by: LCOV version 1.16