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 30550-07450a7a86) Lines: 1603 1779 90.1 % Date: 2025-11-18 09:22:37 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3363998
FpM_hnfend	3364178
FpV_Fp_mul_part_ip	5411499
FpV_red_part_ipvec	37681770
Minus	2059616
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41189115
ZC_lincomb1z	21873361
ZC_lincomb1z_i	21884943
ZM_hnf	89409
ZM_hnf_knapsack	238
ZM_hnfall	29184
ZM_hnfall_i	752465
ZM_hnfcenter	25200
ZM_hnflll	232940
ZM_hnfmod	162581
ZM_hnfmodall	5134083
ZM_hnfmodall_i	5185374
ZM_hnfmodid	4531438
ZM_hnfmodprime	3363991
ZM_hnfperm	385
ZM_redpart	1551927
ZM_reduce	4477545
ZM_rowrankprofile	227407
ZM_snf	15925
ZM_snf_group	712885
ZM_snf_no_divide	1235339
ZM_snfall	64204
ZM_snfall_i	796546
ZM_snfclean	1029743
ZMrow_divexact_inplace	976590
ZV_allequal	322721
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316771
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316771
ZV_snfclean	227090
ZpM_echelon	528386
addmulzii	518343716
addzi	239581684
affii2_or_copy_gc	47843722
allhnfmod	438232
bezout_step	820431
col_dup	2616815
col_mul	3087049
count	8148920
count2	421354
do_zero	0
findi	106106188
findi_normalize	106098406
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197455
hnf_i	61730
hnf_invimage	547297
hnf_invscale	275332
hnf_solve	461153
hnfadd	0
hnfadd_i	92596
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227410
hnflll	7
hnfmerge_get_1	816141
hnfmod	14
hnfmodid	438218
hnfperm	14
hnfspec	0
hnfspec_i	134815
hnfswap	8505282
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4633983
negcmpii	602124
normalize_as_RgX	364
optimal_D	5183336
p_mat	0
reduce1	967385
reduce2	53035290
remove_0cols	335636
reverse_rows	465866
smith	385
smithall	35
smithclean	693
snf_group	1029745
snf_pile	1071845
snf_pile1	48
snfrank	154
subzi	6461311
trivsmith	0
update	771772
zlm_echelon	4801562
zv_snf_rank	0

Generated by: LCOV version 1.16