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 30735-65f72320ad) Lines: 1603 1779 90.1 % Date: 2026-03-09 09:24:55 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364180
FpM_hnfend	3364371
FpV_Fp_mul_part_ip	5412128
FpV_red_part_ipvec	37730821
Minus	2993871
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41267351
ZC_lincomb1z	29923195
ZC_lincomb1z_i	29941795
ZM_hnf	89599
ZM_hnf_knapsack	238
ZM_hnfall	29334
ZM_hnfall_i	752612
ZM_hnfcenter	25169
ZM_hnflll	308978
ZM_hnfmod	162601
ZM_hnfmodall	5140444
ZM_hnfmodall_i	5191731
ZM_hnfmodid	4537654
ZM_hnfmodprime	3364183
ZM_hnfperm	385
ZM_redpart	1689802
ZM_reduce	4474699
ZM_rowrankprofile	303445
ZM_snf	15925
ZM_snf_group	764418
ZM_snf_no_divide	1301807
ZM_snfall	64238
ZM_snfall_i	848132
ZM_snfclean	1081406
ZMrow_divexact_inplace	1070809
ZV_allequal	322708
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316936
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316937
ZV_snfclean	227095
ZpM_echelon	528223
addmulzii	584292477
addzi	278214581
affii2_or_copy_gc	54305700
allhnfmod	438512
bezout_step	890441
col_dup	3769214
col_mul	3367108
count	10216281
count2	554742
do_zero	0
findi	128636141
findi_normalize	128610144
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197487
hnf_i	61770
hnf_invimage	547534
hnf_invscale	275323
hnf_solve	461168
hnfadd	0
hnfadd_i	117083
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303449
hnflll	7
hnfmerge_get_1	815978
hnfmod	14
hnfmodid	438499
hnfperm	14
hnfspec	0
hnfspec_i	186364
hnfswap	11605367
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6172846
negcmpii	602528
normalize_as_RgX	364
optimal_D	5189841
p_mat	0
reduce1	967385
reduce2	64310459
remove_0cols	335840
reverse_rows	617915
smith	385
smithall	35
smithclean	693
snf_group	1081411
snf_pile	1123508
snf_pile1	48
snfrank	154
subzi	7911749
trivsmith	0
update	841804
zlm_echelon	4802459
zv_snf_rank	0

Generated by: LCOV version 1.16