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 30719-2b7f142d49) Lines: 1603 1779 90.1 % Date: 2026-02-28 09:24:01 Functions: 96 106 90.6 % 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
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	29344
hnf_i	61746
ZM_snfall	64190
ZM_hnf	89583
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117086
ZM_hnfmod	162552
hnfspec_i	186315
hnf_divscale	197480
ZV_snfclean	227089
hnf_invscale	275326
ZM_rowrankprofile	303401
hnffinal	303401
ZM_hnflll	308928
ZV_snf_group	316940
ZV_snfall	316940
ZV_allequal	322717
remove_0cols	335823
hnfmodid	438105
allhnfmod	438119
hnf_solve	461162
ZpM_echelon	528150
hnf_invimage	547533
count2	554769
negcmpii	602527
reverse_rows	617828
ZM_hnfall_i	752616
ZM_snf_group	764398
hnfmerge_get_1	815997
update	841837
ZM_snfall_i	848059
bezout_step	890475
reduce1	967385
ZMrow_divexact_inplace	1070816
ZM_snfclean	1081396
snf_group	1081406
snf_pile	1123497
ZM_snf_no_divide	1301796
ZM_redpart	1689856
Minus	2993100
ZM_hnfmodprime	3364175
FpM_echelon	3364182
FpM_hnfend	3364331
col_mul	3367250
col_dup	3768668
ZM_reduce	4480122
ZM_hnfmodid	4536888
zlm_echelon	4801586
ZM_hnfmodall	5139435
optimal_D	5188650
ZM_hnfmodall_i	5190544
FpV_Fp_mul_part_ip	5411573
must_swap	6171075
subzi	7908550
count	10216440
hnfswap	11600200
ZC_lincomb1z	29913212
ZC_lincomb1z_i	29931901
FpV_red_part_ipvec	37719193
ZC_elem	41256317
affii2_or_copy_gc	54267135
reduce2	64296243
findi_normalize	128642440
findi	128658536
addzi	278044261
addmulzii	584122505

Generated by: LCOV version 1.16