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 30603-c72b2decfc) Lines: 1603 1779 90.1 % Date: 2026-01-07 09:21:48 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	25164
ZM_hnfall	29387
hnf_i	61751
ZM_snfall	64189
ZM_hnf	89633
hnfadd_i	92558
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134577
ZM_hnfmod	162552
hnf_divscale	197468
ZV_snfclean	227090
ZM_rowrankprofile	227134
hnffinal	227135
ZM_hnflll	232664
hnf_invscale	275324
ZV_snf_group	316799
ZV_snfall	316799
ZV_allequal	322712
remove_0cols	335867
count2	420931
hnfmodid	438099
allhnfmod	438113
hnf_solve	461160
reverse_rows	465309
ZpM_echelon	528160
hnf_invimage	547536
negcmpii	602159
ZM_snf_group	712653
ZM_hnfall_i	752665
update	771823
ZM_snfall_i	796309
hnfmerge_get_1	815973
bezout_step	820463
reduce1	967385
ZMrow_divexact_inplace	976400
ZM_snfclean	1029519
snf_group	1029524
snf_pile	1071651
ZM_snf_no_divide	1235337
ZM_redpart	1551957
Minus	2055544
col_dup	2614904
col_mul	3087259
FpM_echelon	3364176
ZM_hnfmodprime	3364189
FpM_hnfend	3364333
ZM_reduce	4479172
ZM_hnfmodid	4536408
must_swap	4619786
zlm_echelon	4801607
ZM_hnfmodall	5138912
optimal_D	5187918
ZM_hnfmodall_i	5190000
FpV_Fp_mul_part_ip	5411471
subzi	6469422
count	8161025
hnfswap	8497317
ZC_lincomb1z	21858311
ZC_lincomb1z_i	21866029
FpV_red_part_ipvec	37704907
ZC_elem	41211002
affii2_or_copy_gc	47960105
reduce2	53143763
findi_normalize	106310677
findi	106324030
addzi	239396412
addmulzii	519039319

Generated by: LCOV version 1.16