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 30587-f85873d515) Lines: 1603 1779 90.1 % Date: 2025-12-27 09:21:13 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364121
FpM_hnfend	3364339
FpV_Fp_mul_part_ip	5411512
FpV_red_part_ipvec	37686784
Minus	2057009
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41195170
ZC_lincomb1z	21896952
ZC_lincomb1z_i	21905186
ZM_hnf	89449
ZM_hnf_knapsack	238
ZM_hnfall	29215
ZM_hnfall_i	752492
ZM_hnfcenter	25167
ZM_hnflll	232602
ZM_hnfmod	162545
ZM_hnfmodall	5134081
ZM_hnfmodall_i	5185349
ZM_hnfmodid	4531647
ZM_hnfmodprime	3364097
ZM_hnfperm	385
ZM_redpart	1551684
ZM_reduce	4477027
ZM_rowrankprofile	227071
ZM_snf	15925
ZM_snf_group	712638
ZM_snf_no_divide	1235263
ZM_snfall	64183
ZM_snfall_i	796286
ZM_snfclean	1029517
ZMrow_divexact_inplace	976414
ZV_allequal	322710
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316795
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316795
ZV_snfclean	227084
ZpM_echelon	528154
addmulzii	520541778
addzi	240383615
affii2_or_copy_gc	48044528
allhnfmod	438211
bezout_step	820360
col_dup	2614804
col_mul	3086856
count	8158588
count2	421153
do_zero	0
findi	106472263
findi_normalize	106463458
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197500
hnf_i	61739
hnf_invimage	547541
hnf_invscale	275326
hnf_solve	461159
hnfadd	0
hnfadd_i	92510
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227072
hnflll	7
hnfmerge_get_1	815974
hnfmod	14
hnfmodid	438198
hnfperm	14
hnfspec	0
hnfspec_i	134562
hnfswap	8507018
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4628060
negcmpii	602156
normalize_as_RgX	364
optimal_D	5183382
p_mat	0
reduce1	967385
reduce2	53218357
remove_0cols	335677
reverse_rows	465179
smith	385
smithall	35
smithclean	693
snf_group	1029519
snf_pile	1071672
snf_pile1	48
snfrank	154
subzi	6480766
trivsmith	0
update	771725
zlm_echelon	4801577
zv_snf_rank	0

Generated by: LCOV version 1.16