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 30670-52869c8c38) Lines: 1603 1779 90.1 % Date: 2026-02-05 09:23:49 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	29413
hnf_i	61753
ZM_snfall	64189
ZM_hnf	89661
hnfadd_i	92713
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134572
ZM_hnfmod	162553
hnf_divscale	197491
ZV_snfclean	227091
ZM_rowrankprofile	227287
hnffinal	227289
ZM_hnflll	232819
hnf_invscale	275326
ZV_snf_group	316934
ZV_snfall	316934
ZV_allequal	322712
remove_0cols	335892
count2	421095
hnfmodid	438104
allhnfmod	438117
hnf_solve	461150
reverse_rows	465625
ZpM_echelon	528149
hnf_invimage	547528
negcmpii	602525
ZM_snf_group	712644
ZM_hnfall_i	752690
update	771859
ZM_snfall_i	796312
hnfmerge_get_1	815998
bezout_step	820488
reduce1	967385
ZMrow_divexact_inplace	976441
ZM_snfclean	1029649
snf_group	1029652
snf_pile	1071796
ZM_snf_no_divide	1235313
ZM_redpart	1551895
Minus	2056091
col_dup	2614758
col_mul	3087386
ZM_hnfmodprime	3364243
FpM_echelon	3364267
FpM_hnfend	3364402
ZM_reduce	4481087
ZM_hnfmodid	4537165
must_swap	4622234
zlm_echelon	4801642
ZM_hnfmodall	5139688
optimal_D	5188924
ZM_hnfmodall_i	5190780
FpV_Fp_mul_part_ip	5411604
subzi	6472550
count	8159818
hnfswap	8501537
ZC_lincomb1z	21873918
ZC_lincomb1z_i	21881486
FpV_red_part_ipvec	37718838
ZC_elem	41224748
affii2_or_copy_gc	47981384
reduce2	53172643
findi_normalize	106359891
findi	106366507
addzi	239767419
addmulzii	519347377

Generated by: LCOV version 1.16