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
FpM_echelon	3364210
FpM_hnfend	3364345
FpV_Fp_mul_part_ip	5411453
FpV_red_part_ipvec	37705034
Minus	2056245
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41212198
ZC_lincomb1z	21865190
ZC_lincomb1z_i	21875498
ZM_hnf	89592
ZM_hnf_knapsack	238
ZM_hnfall	29348
ZM_hnfall_i	752627
ZM_hnfcenter	25168
ZM_hnflll	232828
ZM_hnfmod	162553
ZM_hnfmodall	5138918
ZM_hnfmodall_i	5189988
ZM_hnfmodid	4536422
ZM_hnfmodprime	3364213
ZM_hnfperm	385
ZM_redpart	1551848
ZM_reduce	4478137
ZM_rowrankprofile	227299
ZM_snf	15925
ZM_snf_group	712616
ZM_snf_no_divide	1235313
ZM_snfall	64190
ZM_snfall_i	796283
ZM_snfclean	1029514
ZMrow_divexact_inplace	976412
ZV_allequal	322709
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316796
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316796
ZV_snfclean	227085
ZpM_echelon	528151
addmulzii	519149833
addzi	239539858
affii2_or_copy_gc	47971093
allhnfmod	438114
bezout_step	820410
col_dup	2614890
col_mul	3087089
count	8159987
count2	421265
do_zero	0
findi	106360257
findi_normalize	106352760
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197476
hnf_i	61749
hnf_invimage	547522
hnf_invscale	275321
hnf_solve	461157
hnfadd	0
hnfadd_i	92721
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227298
hnflll	7
hnfmerge_get_1	815972
hnfmod	14
hnfmodid	438100
hnfperm	14
hnfspec	0
hnfspec_i	134577
hnfswap	8501510
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4620963
negcmpii	602159
normalize_as_RgX	364
optimal_D	5188018
p_mat	0
reduce1	967385
reduce2	53164359
remove_0cols	335820
reverse_rows	465643
smith	385
smithall	35
smithclean	693
snf_group	1029522
snf_pile	1071653
snf_pile1	48
snfrank	154
subzi	6471745
trivsmith	0
update	771783
zlm_echelon	4801567
zv_snf_rank	0

Generated by: LCOV version 1.16