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 30605-980f9eb85c) Lines: 1603 1779 90.1 % Date: 2026-01-11 09:21:30 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	25168
ZM_hnfall	29348
hnf_i	61749
ZM_snfall	64190
ZM_hnf	89592
hnfadd_i	92721
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134577
ZM_hnfmod	162553
hnf_divscale	197476
ZV_snfclean	227085
hnffinal	227298
ZM_rowrankprofile	227299
ZM_hnflll	232828
hnf_invscale	275321
ZV_snf_group	316796
ZV_snfall	316796
ZV_allequal	322709
remove_0cols	335820
count2	421265
hnfmodid	438100
allhnfmod	438114
hnf_solve	461157
reverse_rows	465643
ZpM_echelon	528151
hnf_invimage	547522
negcmpii	602159
ZM_snf_group	712616
ZM_hnfall_i	752627
update	771783
ZM_snfall_i	796283
hnfmerge_get_1	815972
bezout_step	820410
reduce1	967385
ZMrow_divexact_inplace	976412
ZM_snfclean	1029514
snf_group	1029522
snf_pile	1071653
ZM_snf_no_divide	1235313
ZM_redpart	1551848
Minus	2056245
col_dup	2614890
col_mul	3087089
FpM_echelon	3364210
ZM_hnfmodprime	3364213
FpM_hnfend	3364345
ZM_reduce	4478137
ZM_hnfmodid	4536422
must_swap	4620963
zlm_echelon	4801567
ZM_hnfmodall	5138918
optimal_D	5188018
ZM_hnfmodall_i	5189988
FpV_Fp_mul_part_ip	5411453
subzi	6471745
count	8159987
hnfswap	8501510
ZC_lincomb1z	21865190
ZC_lincomb1z_i	21875498
FpV_red_part_ipvec	37705034
ZC_elem	41212198
affii2_or_copy_gc	47971093
reduce2	53164359
findi_normalize	106352760
findi	106360257
addzi	239539858
addmulzii	519149833

Generated by: LCOV version 1.16