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: 2026-04-01 09:27:34 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	25175
ZM_hnfall	29320
hnf_i	62133
ZM_snfall	64238
ZM_hnf	89948
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117390
ZM_hnfmod	162603
hnfspec_i	186363
hnf_divscale	197489
ZV_snfclean	227092
hnf_invscale	275324
ZM_rowrankprofile	303755
hnffinal	303755
ZM_hnflll	309269
ZV_snf_group	316938
ZV_snfall	316938
ZV_allequal	322715
remove_0cols	336170
hnfmodid	438487
allhnfmod	438502
hnf_solve	461148
ZpM_echelon	528224
hnf_invimage	547533
count2	554854
negcmpii	602518
reverse_rows	618509
ZM_hnfall_i	752595
ZM_snf_group	764390
hnfmerge_get_1	815974
update	842088
ZM_snfall_i	848103
bezout_step	890755
reduce1	967385
ZMrow_divexact_inplace	1070801
ZM_snfclean	1081397
snf_group	1081402
snf_pile	1123490
ZM_snf_no_divide	1301898
ZM_redpart	1690025
Minus	2995595
ZM_hnfmodprime	3364283
FpM_echelon	3364314
FpM_hnfend	3364492
col_mul	3368278
col_dup	3769276
ZM_reduce	4474644
ZM_hnfmodid	4537349
zlm_echelon	4802389
ZM_hnfmodall	5140277
optimal_D	5189414
ZM_hnfmodall_i	5191370
FpV_Fp_mul_part_ip	5411974
must_swap	6176921
subzi	7912488
count	10217566
hnfswap	11608630
ZC_lincomb1z	29915970
ZC_lincomb1z_i	29942592
FpV_red_part_ipvec	37721994
ZC_elem	41257770
affii2_or_copy_gc	54237986
reduce2	64303629
findi_normalize	128643609
findi	128656803
addzi	277212881
addmulzii	582873653

Generated by: LCOV version 1.16