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 30592-30cd175d91) Lines: 1603 1779 90.1 % Date: 2026-01-03 09:20:22 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	25163
ZM_hnfall	29326
hnf_i	61733
ZM_snfall	64190
ZM_hnf	89554
hnfadd_i	92606
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134581
ZM_hnfmod	162549
hnf_divscale	197503
ZV_snfclean	227089
ZM_rowrankprofile	227187
hnffinal	227188
ZM_hnflll	232718
hnf_invscale	275323
ZV_snf_group	316795
ZV_snfall	316795
ZV_allequal	322713
remove_0cols	335785
count2	420990
hnfmodid	438199
allhnfmod	438213
hnf_solve	461164
reverse_rows	465415
ZpM_echelon	528148
hnf_invimage	547532
negcmpii	602153
ZM_snf_group	712623
ZM_hnfall_i	752596
update	771793
ZM_snfall_i	796281
hnfmerge_get_1	815985
bezout_step	820428
reduce1	967385
ZMrow_divexact_inplace	976392
ZM_snfclean	1029520
snf_group	1029524
snf_pile	1071629
ZM_snf_no_divide	1235306
ZM_redpart	1551846
Minus	2056985
col_dup	2615204
col_mul	3087111
FpM_echelon	3364192
ZM_hnfmodprime	3364200
FpM_hnfend	3364330
ZM_reduce	4474031
ZM_hnfmodid	4531821
must_swap	4628386
zlm_echelon	4801539
ZM_hnfmodall	5134441
optimal_D	5183548
ZM_hnfmodall_i	5185557
FpV_Fp_mul_part_ip	5411446
subzi	6479299
count	8159159
hnfswap	8506115
ZC_lincomb1z	21895812
ZC_lincomb1z_i	21904567
FpV_red_part_ipvec	37684031
ZC_elem	41191219
affii2_or_copy_gc	48040780
reduce2	53232392
findi_normalize	106497214
findi	106501646
addzi	240306422
addmulzii	520447385

Generated by: LCOV version 1.16