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 30561-4f4869c0e7) Lines: 1603 1779 90.1 % Date: 2025-11-28 09:21:39 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364098
FpM_hnfend	3364257
FpV_Fp_mul_part_ip	5411764
FpV_red_part_ipvec	37685118
Minus	2058419
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41193944
ZC_lincomb1z	21866027
ZC_lincomb1z_i	21875692
ZM_hnf	89438
ZM_hnf_knapsack	238
ZM_hnfall	29211
ZM_hnfall_i	752433
ZM_hnfcenter	25200
ZM_hnflll	232780
ZM_hnfmod	162581
ZM_hnfmodall	5134082
ZM_hnfmodall_i	5185374
ZM_hnfmodid	4531439
ZM_hnfmodprime	3363960
ZM_hnfperm	385
ZM_redpart	1552160
ZM_reduce	4479119
ZM_rowrankprofile	227251
ZM_snf	15925
ZM_snf_group	712909
ZM_snf_no_divide	1235401
ZM_snfall	64204
ZM_snfall_i	796579
ZM_snfclean	1029764
ZMrow_divexact_inplace	976647
ZV_allequal	322717
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316800
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316800
ZV_snfclean	227087
ZpM_echelon	528390
addmulzii	518518040
addzi	239805285
affii2_or_copy_gc	47853297
allhnfmod	438226
bezout_step	820548
col_dup	2616935
col_mul	3087663
count	8149017
count2	421203
do_zero	0
findi	106067909
findi_normalize	106059929
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197456
hnf_i	61732
hnf_invimage	547286
hnf_invscale	275336
hnf_solve	461150
hnfadd	0
hnfadd_i	92435
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227251
hnflll	7
hnfmerge_get_1	816131
hnfmod	14
hnfmodid	438212
hnfperm	14
hnfspec	0
hnfspec_i	134817
hnfswap	8500716
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4631670
negcmpii	602152
normalize_as_RgX	364
optimal_D	5183357
p_mat	0
reduce1	967385
reduce2	53021648
remove_0cols	335668
reverse_rows	465550
smith	385
smithall	35
smithclean	693
snf_group	1029768
snf_pile	1071831
snf_pile1	48
snfrank	154
subzi	6458617
trivsmith	0
update	771924
zlm_echelon	4801504
zv_snf_rank	0

Generated by: LCOV version 1.16