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
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
ZM_hnfintersectmod	28
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	25170
ZM_hnfall	29348
hnf_i	62127
ZM_snfall	64238
ZM_hnf	89970
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117337
ZM_hnfmod	162598
hnfspec_i	186360
hnf_divscale	197501
ZV_snfclean	227093
hnf_invscale	275323
ZM_rowrankprofile	303699
hnffinal	303701
ZM_hnflll	309217
ZV_snfall	316939
ZV_snf_group	316940
ZV_allequal	322717
remove_0cols	336190
hnfmodid	438496
allhnfmod	438510
hnf_solve	461139
ZpM_echelon	528228
hnf_invimage	547516
count2	554631
negcmpii	602525
reverse_rows	618390
ZM_hnfall_i	752627
ZM_snf_group	764375
hnfmerge_get_1	815981
update	841991
ZM_snfall_i	848084
bezout_step	890650
reduce1	967385
ZMrow_divexact_inplace	1070741
ZM_snfclean	1081387
snf_group	1081393
snf_pile	1123500
ZM_snf_no_divide	1301887
ZM_redpart	1689937
Minus	2995394
ZM_hnfmodprime	3364271
FpM_echelon	3364285
FpM_hnfend	3364498
col_mul	3367889
col_dup	3769172
ZM_reduce	4473152
ZM_hnfmodid	4537418
zlm_echelon	4802384
ZM_hnfmodall	5140358
optimal_D	5189464
ZM_hnfmodall_i	5191462
FpV_Fp_mul_part_ip	5411924
must_swap	6175969
subzi	7907017
count	10215155
hnfswap	11605359
ZC_lincomb1z	29903920
ZC_lincomb1z_i	29930909
FpV_red_part_ipvec	37720861
ZC_elem	41255422
affii2_or_copy_gc	54228098
reduce2	64295731
findi_normalize	128633960
findi	128649013
addzi	277018785
addmulzii	582790406

Generated by: LCOV version 1.16