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: 2026-03-15 09:23:45 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364227
FpM_hnfend	3364291
FpV_Fp_mul_part_ip	5412007
FpV_red_part_ipvec	37730465
Minus	2992024
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41266671
ZC_lincomb1z	29897344
ZC_lincomb1z_i	29915819
ZM_hnf	89625
ZM_hnf_knapsack	238
ZM_hnfall	29353
ZM_hnfall_i	752630
ZM_hnfcenter	25162
ZM_hnflll	308896
ZM_hnfmod	162601
ZM_hnfmodall	5140641
ZM_hnfmodall_i	5191747
ZM_hnfmodid	4537695
ZM_hnfmodprime	3364234
ZM_hnfperm	385
ZM_redpart	1690254
ZM_reduce	4475200
ZM_rowrankprofile	303366
ZM_snf	15925
ZM_snf_group	764404
ZM_snf_no_divide	1301918
ZM_snfall	64239
ZM_snfall_i	848117
ZM_snfclean	1081402
ZMrow_divexact_inplace	1070830
ZV_allequal	322715
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316941
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316941
ZV_snfclean	227094
ZpM_echelon	528227
addmulzii	583372768
addzi	277567804
affii2_or_copy_gc	54268905
allhnfmod	438506
bezout_step	890628
col_dup	3769152
col_mul	3367881
count	10214040
count2	554488
do_zero	0
findi	128566842
findi_normalize	128551163
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197493
hnf_i	61777
hnf_invimage	547539
hnf_invscale	275328
hnf_solve	461169
hnfadd	0
hnfadd_i	117005
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303368
hnflll	7
hnfmerge_get_1	815982
hnfmod	14
hnfmodid	438492
hnfperm	14
hnfspec	0
hnfspec_i	186356
hnfswap	11596429
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6168658
negcmpii	602532
normalize_as_RgX	364
optimal_D	5189852
p_mat	0
reduce1	967385
reduce2	64266304
remove_0cols	335862
reverse_rows	617757
smith	385
smithall	35
smithclean	693
snf_group	1081405
snf_pile	1123501
snf_pile1	48
snfrank	154
subzi	7902787
trivsmith	0
update	841982
zlm_echelon	4802361
zv_snf_rank	0

Generated by: LCOV version 1.16