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 30590-f14e077362) Lines: 1603 1779 90.1 % Date: 2026-01-02 09:20:44 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	25166
ZM_hnfall	29184
hnf_i	61701
ZM_snfall	64183
ZM_hnf	89379
hnfadd_i	92429
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134561
ZM_hnfmod	162546
hnf_divscale	197495
ZM_rowrankprofile	226990
hnffinal	226992
ZV_snfclean	227088
ZM_hnflll	232518
hnf_invscale	275325
ZV_snf_group	316797
ZV_snfall	316797
ZV_allequal	322708
remove_0cols	335611
count2	421084
hnfmodid	438194
allhnfmod	438207
hnf_solve	461160
reverse_rows	465021
ZpM_echelon	528154
hnf_invimage	547535
negcmpii	602158
ZM_snf_group	712624
ZM_hnfall_i	752460
update	771699
ZM_snfall_i	796277
hnfmerge_get_1	815975
bezout_step	820355
reduce1	967385
ZMrow_divexact_inplace	976398
snf_group	1029524
ZM_snfclean	1029525
snf_pile	1071637
ZM_snf_no_divide	1235287
ZM_redpart	1551722
Minus	2056075
col_dup	2614839
col_mul	3086711
FpM_echelon	3364142
ZM_hnfmodprime	3364143
FpM_hnfend	3364312
ZM_reduce	4470442
ZM_hnfmodid	4531468
must_swap	4624800
zlm_echelon	4801521
ZM_hnfmodall	5134046
optimal_D	5183172
ZM_hnfmodall_i	5185177
FpV_Fp_mul_part_ip	5411529
subzi	6476782
count	8159213
hnfswap	8502096
ZC_lincomb1z	21882832
ZC_lincomb1z_i	21892305
FpV_red_part_ipvec	37682202
ZC_elem	41182765
affii2_or_copy_gc	48025853
reduce2	53192379
findi_normalize	106414117
findi	106426011
addzi	240212864
addmulzii	520321950

Generated by: LCOV version 1.16