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
FpM_echelon	3364176
FpM_hnfend	3364333
FpV_Fp_mul_part_ip	5411471
FpV_red_part_ipvec	37704907
Minus	2055544
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41211002
ZC_lincomb1z	21858311
ZC_lincomb1z_i	21866029
ZM_hnf	89633
ZM_hnf_knapsack	238
ZM_hnfall	29387
ZM_hnfall_i	752665
ZM_hnfcenter	25164
ZM_hnflll	232664
ZM_hnfmod	162552
ZM_hnfmodall	5138912
ZM_hnfmodall_i	5190000
ZM_hnfmodid	4536408
ZM_hnfmodprime	3364189
ZM_hnfperm	385
ZM_redpart	1551957
ZM_reduce	4479172
ZM_rowrankprofile	227134
ZM_snf	15925
ZM_snf_group	712653
ZM_snf_no_divide	1235337
ZM_snfall	64189
ZM_snfall_i	796309
ZM_snfclean	1029519
ZMrow_divexact_inplace	976400
ZV_allequal	322712
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	227090
ZpM_echelon	528160
addmulzii	519039319
addzi	239396412
affii2_or_copy_gc	47960105
allhnfmod	438113
bezout_step	820463
col_dup	2614904
col_mul	3087259
count	8161025
count2	420931
do_zero	0
findi	106324030
findi_normalize	106310677
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197468
hnf_i	61751
hnf_invimage	547536
hnf_invscale	275324
hnf_solve	461160
hnfadd	0
hnfadd_i	92558
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227135
hnflll	7
hnfmerge_get_1	815973
hnfmod	14
hnfmodid	438099
hnfperm	14
hnfspec	0
hnfspec_i	134577
hnfswap	8497317
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4619786
negcmpii	602159
normalize_as_RgX	364
optimal_D	5187918
p_mat	0
reduce1	967385
reduce2	53143763
remove_0cols	335867
reverse_rows	465309
smith	385
smithall	35
smithclean	693
snf_group	1029524
snf_pile	1071651
snf_pile1	48
snfrank	154
subzi	6469422
trivsmith	0
update	771823
zlm_echelon	4801607
zv_snf_rank	0

Generated by: LCOV version 1.16