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 30824-18397de1d0) Lines: 1610 1786 90.1 % Date: 2026-04-19 09:25:48 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
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
normalize_as_RgX	364
ZM_hnfperm	385
smith	385
matsnf0	469
RgC_elem	511
smithclean	693
ZV_hnfgcdext	707
gbezout_step	882
mathnf0	973
is_RgX	2590
ZM_snf	15925
ZM_hnfcenter	25168
ZM_hnfall	29338
hnf_i	62133
ZM_snfall	64239
ZM_hnf	89966
ZV_extgcd	110572
ZV_gcdext_i	111272
hnfadd_i	117216
ZM_hnfmod	162600
hnfspec_i	186359
hnf_divscale	197487
ZV_snfclean	227095
hnf_invscale	275321
ZM_rowrankprofile	303577
hnffinal	303579
ZM_hnflll	309095
ZV_snf_group	316940
ZV_snfall	316940
ZV_allequal	322714
remove_0cols	336186
hnfmodid	438495
allhnfmod	438509
hnf_solve	461152
ZpM_echelon	528216
hnf_invimage	547525
count2	554612
negcmpii	602524
reverse_rows	618148
ZM_hnfall_i	752618
ZM_snf_group	764408
hnfmerge_get_1	815986
update	842013
ZM_snfall_i	848117
bezout_step	890672
reduce1	991087
ZMrow_divexact_inplace	1070793
ZM_snfclean	1081391
snf_group	1081391
snf_pile	1123488
ZM_snf_no_divide	1301857
ZM_redpart	1689976
Minus	2994792
ZM_hnfmodprime	3364183
FpM_echelon	3364188
FpM_hnfend	3364356
col_mul	3368000
col_dup	3769122
ZM_reduce	4475230
ZM_hnfmodid	4537082
zlm_echelon	4802309
ZM_hnfmodall	5139967
optimal_D	5189089
ZM_hnfmodall_i	5191085
FpV_Fp_mul_part_ip	5411891
must_swap	6182125
subzi	7911073
count	10216276
hnfswap	11607797
ZC_lincomb1z	29896306
ZC_lincomb1z_i	29918757
FpV_red_part_ipvec	37719253
ZC_elem	41257250
affii2_or_copy_gc	54227121
reduce2	64263882
findi_normalize	128600037
findi	128626610
addzi	276720395
addmulzii	582788858

Generated by: LCOV version 1.16