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: 2025-11-23 09:22:56 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3363959
FpM_hnfend	3364225
FpV_Fp_mul_part_ip	5411487
FpV_red_part_ipvec	37682414
Minus	2058876
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41190921
ZC_lincomb1z	21866720
ZC_lincomb1z_i	21878238
ZM_hnf	89387
ZM_hnf_knapsack	238
ZM_hnfall	29163
ZM_hnfall_i	752448
ZM_hnfcenter	25196
ZM_hnflll	232810
ZM_hnfmod	162578
ZM_hnfmodall	5133835
ZM_hnfmodall_i	5185143
ZM_hnfmodid	4531204
ZM_hnfmodprime	3363970
ZM_hnfperm	385
ZM_redpart	1552076
ZM_reduce	4478335
ZM_rowrankprofile	227281
ZM_snf	15925
ZM_snf_group	712876
ZM_snf_no_divide	1235373
ZM_snfall	64203
ZM_snfall_i	796536
ZM_snfclean	1029746
ZMrow_divexact_inplace	976592
ZV_allequal	322721
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316770
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316770
ZV_snfclean	227090
ZpM_echelon	528395
addmulzii	518218547
addzi	239512529
affii2_or_copy_gc	47837665
allhnfmod	438235
bezout_step	820529
col_dup	2616836
col_mul	3087456
count	8149284
count2	421218
do_zero	0
findi	106083683
findi_normalize	106075803
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197458
hnf_i	61729
hnf_invimage	547300
hnf_invscale	275338
hnf_solve	461159
hnfadd	0
hnfadd_i	92467
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227282
hnflll	7
hnfmerge_get_1	816138
hnfmod	14
hnfmodid	438221
hnfperm	14
hnfspec	0
hnfspec_i	134815
hnfswap	8502519
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4633388
negcmpii	602131
normalize_as_RgX	364
optimal_D	5183175
p_mat	0
reduce1	967385
reduce2	53021773
remove_0cols	335610
reverse_rows	465592
smith	385
smithall	35
smithclean	693
snf_group	1029748
snf_pile	1071879
snf_pile1	48
snfrank	154
subzi	6461166
trivsmith	0
update	771880
zlm_echelon	4801534
zv_snf_rank	0

Generated by: LCOV version 1.16