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 30604-e5d817ee12) Lines: 1603 1779 90.1 % Date: 2026-01-10 09:22:24 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364210
FpM_hnfend	3364374
FpV_Fp_mul_part_ip	5411389
FpV_red_part_ipvec	37707831
Minus	2055822
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41215016
ZC_lincomb1z	21859713
ZC_lincomb1z_i	21870602
ZM_hnf	89586
ZM_hnf_knapsack	238
ZM_hnfall	29342
ZM_hnfall_i	752619
ZM_hnfcenter	25171
ZM_hnflll	232707
ZM_hnfmod	162553
ZM_hnfmodall	5138995
ZM_hnfmodall_i	5190100
ZM_hnfmodid	4536489
ZM_hnfmodprime	3364186
ZM_hnfperm	385
ZM_redpart	1551948
ZM_reduce	4481787
ZM_rowrankprofile	227179
ZM_snf	15925
ZM_snf_group	712632
ZM_snf_no_divide	1235342
ZM_snfall	64189
ZM_snfall_i	796283
ZM_snfclean	1029505
ZMrow_divexact_inplace	976400
ZV_allequal	322717
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316799
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316799
ZV_snfclean	227088
ZpM_echelon	528162
addmulzii	519012914
addzi	239438551
affii2_or_copy_gc	47963113
allhnfmod	438113
bezout_step	820470
col_dup	2614857
col_mul	3087270
count	8160941
count2	420988
do_zero	0
findi	106346073
findi_normalize	106337420
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197466
hnf_i	61749
hnf_invimage	547532
hnf_invscale	275327
hnf_solve	461150
hnfadd	0
hnfadd_i	92602
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227178
hnflll	7
hnfmerge_get_1	815971
hnfmod	14
hnfmodid	438099
hnfperm	14
hnfspec	0
hnfspec_i	134577
hnfswap	8499167
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4620056
negcmpii	602164
normalize_as_RgX	364
optimal_D	5188199
p_mat	0
reduce1	967385
reduce2	53155079
remove_0cols	335823
reverse_rows	465399
smith	385
smithall	35
smithclean	693
snf_group	1029506
snf_pile	1071626
snf_pile1	48
snfrank	154
subzi	6470546
trivsmith	0
update	771834
zlm_echelon	4801597
zv_snf_rank	0

Generated by: LCOV version 1.16