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 30674-be81ecfdd4) Lines: 1603 1779 90.1 % Date: 2026-02-09 09:23:39 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364189
FpM_hnfend	3364424
FpV_Fp_mul_part_ip	5411469
FpV_red_part_ipvec	37715005
Minus	2056449
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41216285
ZC_lincomb1z	21879654
ZC_lincomb1z_i	21886060
ZM_hnf	89564
ZM_hnf_knapsack	238
ZM_hnfall	29323
ZM_hnfall_i	752597
ZM_hnfcenter	25172
ZM_hnflll	232745
ZM_hnfmod	162553
ZM_hnfmodall	5139295
ZM_hnfmodall_i	5190382
ZM_hnfmodid	4536782
ZM_hnfmodprime	3364190
ZM_hnfperm	385
ZM_redpart	1551998
ZM_reduce	4479245
ZM_rowrankprofile	227214
ZM_snf	15925
ZM_snf_group	712648
ZM_snf_no_divide	1235364
ZM_snfall	64189
ZM_snfall_i	796299
ZM_snfclean	1029678
ZMrow_divexact_inplace	976447
ZV_allequal	322716
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316932
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316931
ZV_snfclean	227094
ZpM_echelon	528168
addmulzii	519499140
addzi	239821361
affii2_or_copy_gc	47987347
allhnfmod	438116
bezout_step	820462
col_dup	2614869
col_mul	3087305
count	8159644
count2	421341
do_zero	0
findi	106383061
findi_normalize	106364595
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197486
hnf_i	61748
hnf_invimage	547530
hnf_invscale	275329
hnf_solve	461157
hnfadd	0
hnfadd_i	92637
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227216
hnflll	7
hnfmerge_get_1	815996
hnfmod	14
hnfmodid	438103
hnfperm	14
hnfspec	0
hnfspec_i	134577
hnfswap	8503193
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4622196
negcmpii	602523
normalize_as_RgX	364
optimal_D	5188514
p_mat	0
reduce1	967385
reduce2	53180190
remove_0cols	335804
reverse_rows	465461
smith	385
smithall	35
smithclean	693
snf_group	1029680
snf_pile	1071813
snf_pile1	48
snfrank	154
subzi	6472885
trivsmith	0
update	771838
zlm_echelon	4801716
zv_snf_rank	0

Generated by: LCOV version 1.16