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 30773-2078653b96) Lines: 1610 1786 90.1 % Date: 2026-04-04 09:27:12 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364285
FpM_hnfend	3364498
FpV_Fp_mul_part_ip	5411924
FpV_red_part_ipvec	37720861
Minus	2995394
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41255422
ZC_lincomb1z	29903920
ZC_lincomb1z_i	29930909
ZM_hnf	89970
ZM_hnf_knapsack	238
ZM_hnfall	29348
ZM_hnfall_i	752627
ZM_hnfcenter	25170
ZM_hnfintersectmod	28
ZM_hnflll	309217
ZM_hnfmod	162598
ZM_hnfmodall	5140358
ZM_hnfmodall_i	5191462
ZM_hnfmodid	4537418
ZM_hnfmodprime	3364271
ZM_hnfperm	385
ZM_redpart	1689937
ZM_reduce	4473152
ZM_rowrankprofile	303699
ZM_snf	15925
ZM_snf_group	764375
ZM_snf_no_divide	1301887
ZM_snfall	64238
ZM_snfall_i	848084
ZM_snfclean	1081387
ZMrow_divexact_inplace	1070741
ZV_allequal	322717
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316940
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316939
ZV_snfclean	227093
ZpM_echelon	528228
addmulzii	582790406
addzi	277018785
affii2_or_copy_gc	54228098
allhnfmod	438510
bezout_step	890650
col_dup	3769172
col_mul	3367889
count	10215155
count2	554631
do_zero	0
findi	128649013
findi_normalize	128633960
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197501
hnf_i	62127
hnf_invimage	547516
hnf_invscale	275323
hnf_solve	461139
hnfadd	0
hnfadd_i	117337
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303701
hnflll	7
hnfmerge_get_1	815981
hnfmod	14
hnfmodid	438496
hnfperm	14
hnfspec	0
hnfspec_i	186360
hnfswap	11605359
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6175969
negcmpii	602525
normalize_as_RgX	364
optimal_D	5189464
p_mat	0
reduce1	967385
reduce2	64295731
remove_0cols	336190
reverse_rows	618390
smith	385
smithall	35
smithclean	693
snf_group	1081393
snf_pile	1123500
snf_pile1	48
snfrank	154
subzi	7907017
trivsmith	0
update	841991
zlm_echelon	4802384
zv_snf_rank	0

Generated by: LCOV version 1.16