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 30616-7aa4fb0184) Lines: 1603 1779 90.1 % Date: 2026-01-18 09:22:29 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364170
FpM_hnfend	3364350
FpV_Fp_mul_part_ip	5411477
FpV_red_part_ipvec	37705021
Minus	2055710
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41201172
ZC_lincomb1z	21861183
ZC_lincomb1z_i	21870697
ZM_hnf	89565
ZM_hnf_knapsack	238
ZM_hnfall	29344
ZM_hnfall_i	752616
ZM_hnfcenter	25165
ZM_hnflll	232675
ZM_hnfmod	162553
ZM_hnfmodall	5138972
ZM_hnfmodall_i	5190081
ZM_hnfmodid	4536482
ZM_hnfmodprime	3364155
ZM_hnfperm	385
ZM_redpart	1551858
ZM_reduce	4472493
ZM_rowrankprofile	227142
ZM_snf	15925
ZM_snf_group	712617
ZM_snf_no_divide	1235331
ZM_snfall	64190
ZM_snfall_i	796275
ZM_snfclean	1029516
ZMrow_divexact_inplace	976413
ZV_allequal	322717
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316793
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316792
ZV_snfclean	227092
ZpM_echelon	528153
addmulzii	519192033
addzi	239470549
affii2_or_copy_gc	47956662
allhnfmod	438117
bezout_step	820405
col_dup	2614845
col_mul	3086917
count	8161043
count2	421055
do_zero	0
findi	106328011
findi_normalize	106310748
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197483
hnf_i	61726
hnf_invimage	547521
hnf_invscale	275321
hnf_solve	461147
hnfadd	0
hnfadd_i	92566
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227145
hnflll	7
hnfmerge_get_1	815968
hnfmod	14
hnfmodid	438103
hnfperm	14
hnfspec	0
hnfspec_i	134577
hnfswap	8497559
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4618723
negcmpii	602153
normalize_as_RgX	364
optimal_D	5188055
p_mat	0
reduce1	967385
reduce2	53143269
remove_0cols	335800
reverse_rows	465331
smith	385
smithall	35
smithclean	693
snf_group	1029517
snf_pile	1071637
snf_pile1	48
snfrank	154
subzi	6469107
trivsmith	0
update	771747
zlm_echelon	4801505
zv_snf_rank	0

Generated by: LCOV version 1.16