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 30608-ad1edb9ceb) Lines: 1603 1779 90.1 % Date: 2026-01-13 09:22:00 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364154
FpM_hnfend	3364303
FpV_Fp_mul_part_ip	5411428
FpV_red_part_ipvec	37709871
Minus	2056090
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41219128
ZC_lincomb1z	21860355
ZC_lincomb1z_i	21870660
ZM_hnf	89575
ZM_hnf_knapsack	238
ZM_hnfall	29338
ZM_hnfall_i	752610
ZM_hnfcenter	25163
ZM_hnflll	232690
ZM_hnfmod	162548
ZM_hnfmodall	5139067
ZM_hnfmodall_i	5190155
ZM_hnfmodid	4536564
ZM_hnfmodprime	3364142
ZM_hnfperm	385
ZM_redpart	1551883
ZM_reduce	4480221
ZM_rowrankprofile	227161
ZM_snf	15925
ZM_snf_group	712600
ZM_snf_no_divide	1235320
ZM_snfall	64188
ZM_snfall_i	796257
ZM_snfclean	1029522
ZMrow_divexact_inplace	976400
ZV_allequal	322705
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316775
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316790
ZV_snfclean	227089
ZpM_echelon	528149
addmulzii	519043269
addzi	239449367
affii2_or_copy_gc	47965029
allhnfmod	438120
bezout_step	820428
col_dup	2614806
col_mul	3087125
count	8159958
count2	421047
do_zero	0
findi	106347100
findi_normalize	106338988
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197481
hnf_i	61742
hnf_invimage	547539
hnf_invscale	275325
hnf_solve	461167
hnfadd	0
hnfadd_i	92585
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227162
hnflll	7
hnfmerge_get_1	815984
hnfmod	14
hnfmodid	438106
hnfperm	14
hnfspec	0
hnfspec_i	134577
hnfswap	8499843
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4621413
negcmpii	602151
normalize_as_RgX	364
optimal_D	5188194
p_mat	0
reduce1	967385
reduce2	53154858
remove_0cols	335810
reverse_rows	465371
smith	385
smithall	35
smithclean	693
snf_group	1029527
snf_pile	1071643
snf_pile1	48
snfrank	154
subzi	6470835
trivsmith	0
update	771794
zlm_echelon	4801531
zv_snf_rank	0

Generated by: LCOV version 1.16