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 30552-d1d0643eee) Lines: 1603 1779 90.1 % Date: 2025-11-21 09:22:16 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364047
FpM_hnfend	3364273
FpV_Fp_mul_part_ip	5411415
FpV_red_part_ipvec	37683412
Minus	2058621
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41190000
ZC_lincomb1z	21860758
ZC_lincomb1z_i	21872734
ZM_hnf	89407
ZM_hnf_knapsack	238
ZM_hnfall	29179
ZM_hnfall_i	752464
ZM_hnfcenter	25203
ZM_hnflll	232757
ZM_hnfmod	162581
ZM_hnfmodall	5134023
ZM_hnfmodall_i	5185293
ZM_hnfmodid	4531359
ZM_hnfmodprime	3364047
ZM_hnfperm	385
ZM_redpart	1552020
ZM_reduce	4476112
ZM_rowrankprofile	227229
ZM_snf	15925
ZM_snf_group	712900
ZM_snf_no_divide	1235352
ZM_snfall	64204
ZM_snfall_i	796572
ZM_snfclean	1029740
ZMrow_divexact_inplace	976612
ZV_allequal	322717
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316771
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316770
ZV_snfclean	227093
ZpM_echelon	528387
addmulzii	518119636
addzi	239460602
affii2_or_copy_gc	47834628
allhnfmod	438225
bezout_step	820431
col_dup	2616811
col_mul	3087010
count	8148631
count2	421080
do_zero	0
findi	106061705
findi_normalize	106053850
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197442
hnf_i	61733
hnf_invimage	547286
hnf_invscale	275337
hnf_solve	461149
hnfadd	0
hnfadd_i	92414
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227230
hnflll	7
hnfmerge_get_1	816139
hnfmod	14
hnfmodid	438212
hnfperm	14
hnfspec	0
hnfspec_i	134814
hnfswap	8500174
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4632754
negcmpii	602128
normalize_as_RgX	364
optimal_D	5183189
p_mat	0
reduce1	967385
reduce2	53012348
remove_0cols	335638
reverse_rows	465497
smith	385
smithall	35
smithclean	693
snf_group	1029744
snf_pile	1071864
snf_pile1	48
snfrank	154
subzi	6458717
trivsmith	0
update	771762
zlm_echelon	4801574
zv_snf_rank	0

Generated by: LCOV version 1.16