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 30634-7c77b4d1a9) Lines: 1603 1779 90.1 % Date: 2026-01-25 09:23:13 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	25166
ZM_hnfall	29360
hnf_i	61722
ZM_snfall	64190
ZM_hnf	89577
hnfadd_i	92605
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134577
ZM_hnfmod	162553
hnf_divscale	197475
ZV_snfclean	227093
ZM_rowrankprofile	227183
hnffinal	227183
ZM_hnflll	232713
hnf_invscale	275321
ZV_snf_group	316799
ZV_snfall	316799
ZV_allequal	322713
remove_0cols	335811
count2	421045
hnfmodid	438103
allhnfmod	438117
hnf_solve	461164
reverse_rows	465416
ZpM_echelon	528164
hnf_invimage	547509
negcmpii	602162
ZM_snf_group	712668
ZM_hnfall_i	752631
update	771870
ZM_snfall_i	796328
hnfmerge_get_1	815990
bezout_step	820482
reduce1	967385
ZMrow_divexact_inplace	976402
ZM_snfclean	1029515
snf_group	1029517
snf_pile	1071666
ZM_snf_no_divide	1235317
ZM_redpart	1551887
Minus	2056107
col_dup	2614814
col_mul	3087401
ZM_hnfmodprime	3364164
FpM_echelon	3364174
FpM_hnfend	3364384
ZM_reduce	4471802
ZM_hnfmodid	4536514
must_swap	4619727
zlm_echelon	4801613
ZM_hnfmodall	5138995
optimal_D	5188259
ZM_hnfmodall_i	5190099
FpV_Fp_mul_part_ip	5411527
subzi	6471734
count	8160298
hnfswap	8499676
ZC_lincomb1z	21872004
ZC_lincomb1z_i	21879802
FpV_red_part_ipvec	37707670
ZC_elem	41202085
affii2_or_copy_gc	47968261
reduce2	53166607
findi_normalize	106359636
findi	106367784
addzi	239660369
addmulzii	519259482

Generated by: LCOV version 1.16