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 30571-c0dfe82732) Lines: 1603 1779 90.1 % Date: 2025-12-08 09:22:00 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
ZV_snf_trunc	0
do_zero	0
gsmith	0
gsmithall	0
hnfadd	0
hnfspec	0
mathnfspec	0
p_mat	0
trivsmith	0
zv_snf_rank	0
hnflll	7
hnf	14
hnfall	14
hnfmod	14
hnfperm	14
ZV_hnfgcdext	21
hnfallgen	21
smithall	35
RgM_hnfall	42
snf_pile1	48
RgXM_snf	49
ZV_snf_rank_u	49
RgM_reduce	84
ZV_snf_rank	91
hnfdivide	133
snfrank	154
gsnf_no_divide	196
ZM_hnf_knapsack	238
mathnf0	287
normalize_as_RgX	364
ZM_hnfperm	385
smith	385
matsnf0	469
RgC_elem	511
smithclean	693
gbezout_step	882
is_RgX	2590
ZM_snf	15925
ZM_hnfcenter	25207
ZM_hnfall	29213
hnf_i	61724
ZM_snfall	64218
ZM_hnf	89432
hnfadd_i	92457
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134832
ZM_hnfmod	162602
hnf_divscale	197688
ZV_snfclean	227090
ZM_rowrankprofile	227288
hnffinal	227290
ZM_hnflll	232819
hnf_invscale	275360
ZV_snfall	316795
ZV_snf_group	316796
ZV_allequal	322747
remove_0cols	335660
count2	421196
hnfmodid	438374
allhnfmod	438387
hnf_solve	461149
reverse_rows	465619
ZpM_echelon	528401
hnf_invimage	547524
negcmpii	602158
ZM_snf_group	712933
ZM_hnfall_i	752505
update	771948
ZM_snfall_i	796621
hnfmerge_get_1	816134
bezout_step	820606
reduce1	967385
ZMrow_divexact_inplace	976759
ZM_snfclean	1029802
snf_group	1029806
snf_pile	1071961
ZM_snf_no_divide	1235538
ZM_redpart	1552159
Minus	2059520
col_dup	2617697
col_mul	3087754
ZM_hnfmodprime	3364689
FpM_echelon	3364690
FpM_hnfend	3364868
ZM_reduce	4478752
ZM_hnfmodid	4533488
must_swap	4633127
zlm_echelon	4803168
ZM_hnfmodall	5136278
optimal_D	5185723
ZM_hnfmodall_i	5187630
FpV_Fp_mul_part_ip	5412879
subzi	6480489
count	8160929
hnfswap	8509786
ZC_lincomb1z	21901288
ZC_lincomb1z_i	21908717
FpV_red_part_ipvec	37705084
ZC_elem	41213686
affii2_or_copy_gc	48042238
reduce2	53221378
findi_normalize	106474904
findi	106483916
addzi	240183203
addmulzii	520279327

Generated by: LCOV version 1.16