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 30786-ffec283a2b) Lines: 1610 1786 90.1 % Date: 2026-04-08 09:25:27 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364177
FpM_hnfend	3364263
FpV_Fp_mul_part_ip	5412123
FpV_red_part_ipvec	37722599
Minus	2994069
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41256825
ZC_lincomb1z	29883709
ZC_lincomb1z_i	29908590
ZM_hnf	89963
ZM_hnf_knapsack	238
ZM_hnfall	29343
ZM_hnfall_i	752621
ZM_hnfcenter	25165
ZM_hnfintersectmod	28
ZM_hnflll	309149
ZM_hnfmod	162602
ZM_hnfmodall	5140111
ZM_hnfmodall_i	5191530
ZM_hnfmodid	4537449
ZM_hnfmodprime	3364191
ZM_hnfperm	385
ZM_redpart	1689915
ZM_reduce	4473523
ZM_rowrankprofile	303632
ZM_snf	15925
ZM_snf_group	764384
ZM_snf_no_divide	1301887
ZM_snfall	64239
ZM_snfall_i	848093
ZM_snfclean	1081392
ZMrow_divexact_inplace	1070801
ZV_allequal	322714
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316938
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316938
ZV_snfclean	227085
ZpM_echelon	528246
addmulzii	582586666
addzi	276620585
affii2_or_copy_gc	54214720
allhnfmod	438509
bezout_step	890585
col_dup	3769048
col_mul	3367626
count	10213679
count2	554535
do_zero	0
findi	128563188
findi_normalize	128538465
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197491
hnf_i	62125
hnf_invimage	547514
hnf_invscale	275322
hnf_solve	461129
hnfadd	0
hnfadd_i	117269
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303633
hnflll	7
hnfmerge_get_1	815978
hnfmod	14
hnfmodid	438495
hnfperm	14
hnfspec	0
hnfspec_i	186358
hnfswap	11598469
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6172460
negcmpii	602526
normalize_as_RgX	364
optimal_D	5189574
p_mat	0
reduce1	967385
reduce2	64236240
remove_0cols	336180
reverse_rows	618248
smith	385
smithall	35
smithclean	693
snf_group	1081397
snf_pile	1123480
snf_pile1	48
snfrank	154
subzi	7906302
trivsmith	0
update	841930
zlm_echelon	4802368
zv_snf_rank	0

Generated by: LCOV version 1.16