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 30605-980f9eb85c) Lines: 1603 1779 90.1 % Date: 2026-01-12 09:21:57 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364211
FpM_hnfend	3364377
FpV_Fp_mul_part_ip	5411544
FpV_red_part_ipvec	37707711
Minus	2056330
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41211805
ZC_lincomb1z	21865634
ZC_lincomb1z_i	21875511
ZM_hnf	89557
ZM_hnf_knapsack	238
ZM_hnfall	29320
ZM_hnfall_i	752596
ZM_hnfcenter	25169
ZM_hnflll	232738
ZM_hnfmod	162550
ZM_hnfmodall	5138993
ZM_hnfmodall_i	5190083
ZM_hnfmodid	4536494
ZM_hnfmodprime	3364138
ZM_hnfperm	385
ZM_redpart	1551873
ZM_reduce	4477934
ZM_rowrankprofile	227207
ZM_snf	15925
ZM_snf_group	712625
ZM_snf_no_divide	1235309
ZM_snfall	64190
ZM_snfall_i	796284
ZM_snfclean	1029521
ZMrow_divexact_inplace	976423
ZV_allequal	322709
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316797
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316797
ZV_snfclean	227091
ZpM_echelon	528155
addmulzii	519045419
addzi	239435829
affii2_or_copy_gc	47965999
allhnfmod	438118
bezout_step	820459
col_dup	2614851
col_mul	3087241
count	8160702
count2	421210
do_zero	0
findi	106348268
findi_normalize	106342537
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197469
hnf_i	61742
hnf_invimage	547525
hnf_invscale	275327
hnf_solve	461148
hnfadd	0
hnfadd_i	92630
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227208
hnflll	7
hnfmerge_get_1	815980
hnfmod	14
hnfmodid	438105
hnfperm	14
hnfspec	0
hnfspec_i	134578
hnfswap	8500221
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4620919
negcmpii	602157
normalize_as_RgX	364
optimal_D	5188076
p_mat	0
reduce1	967385
reduce2	53155060
remove_0cols	335789
reverse_rows	465449
smith	385
smithall	35
smithclean	693
snf_group	1029522
snf_pile	1071651
snf_pile1	48
snfrank	154
subzi	6471243
trivsmith	0
update	771830
zlm_echelon	4801605
zv_snf_rank	0

Generated by: LCOV version 1.16