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: 2026-03-30 09:27:24 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	25171
ZM_hnfall	29381
hnf_i	62128
ZM_snfall	64237
ZM_hnf	90004
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117322
ZM_hnfmod	162601
hnfspec_i	186357
hnf_divscale	197482
ZV_snfclean	227088
hnf_invscale	275323
ZM_rowrankprofile	303687
hnffinal	303688
ZM_hnflll	309204
ZV_snf_group	316934
ZV_snfall	316934
ZV_allequal	322709
remove_0cols	336220
hnfmodid	438496
allhnfmod	438510
hnf_solve	461143
ZpM_echelon	528231
hnf_invimage	547532
count2	554530
negcmpii	602517
reverse_rows	618354
ZM_hnfall_i	752655
ZM_snf_group	764360
hnfmerge_get_1	815984
update	841902
ZM_snfall_i	848065
bezout_step	890560
reduce1	967385
ZMrow_divexact_inplace	1070752
ZM_snfclean	1081407
snf_group	1081408
snf_pile	1123485
ZM_snf_no_divide	1301756
ZM_redpart	1689637
Minus	2995139
ZM_hnfmodprime	3364243
FpM_echelon	3364259
FpM_hnfend	3364512
col_mul	3367534
col_dup	3769174
ZM_reduce	4476951
ZM_hnfmodid	4537265
zlm_echelon	4802364
ZM_hnfmodall	5140179
optimal_D	5189273
ZM_hnfmodall_i	5190932
FpV_Fp_mul_part_ip	5411962
must_swap	6175224
subzi	7908050
count	10216343
hnfswap	11604351
ZC_lincomb1z	29905412
ZC_lincomb1z_i	29932697
FpV_red_part_ipvec	37719439
ZC_elem	41259034
affii2_or_copy_gc	54217937
reduce2	64282188
findi_normalize	128612025
findi	128629007
addzi	276889207
addmulzii	582580109

Generated by: LCOV version 1.16