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 30571-c0dfe82732) Lines: 1603 1779 90.1 % Date: 2025-12-10 09:22:03 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364677
FpM_hnfend	3364824
FpV_Fp_mul_part_ip	5412874
FpV_red_part_ipvec	37705137
Minus	2060315
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41210821
ZC_lincomb1z	21909038
ZC_lincomb1z_i	21916458
ZM_hnf	89440
ZM_hnf_knapsack	238
ZM_hnfall	29208
ZM_hnfall_i	752497
ZM_hnfcenter	25206
ZM_hnflll	232921
ZM_hnfmod	162598
ZM_hnfmodall	5136297
ZM_hnfmodall_i	5187628
ZM_hnfmodid	4533543
ZM_hnfmodprime	3364608
ZM_hnfperm	385
ZM_redpart	1552011
ZM_reduce	4477898
ZM_rowrankprofile	227391
ZM_snf	15925
ZM_snf_group	712943
ZM_snf_no_divide	1235498
ZM_snfall	64218
ZM_snfall_i	796625
ZM_snfclean	1029820
ZMrow_divexact_inplace	976796
ZV_allequal	322736
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316800
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316800
ZV_snfclean	227087
ZpM_echelon	528409
addmulzii	520395745
addzi	240263304
affii2_or_copy_gc	48051304
allhnfmod	438386
bezout_step	820501
col_dup	2617652
col_mul	3087275
count	8160485
count2	421301
do_zero	0
findi	106512936
findi_normalize	106501668
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197686
hnf_i	61737
hnf_invimage	547525
hnf_invscale	275361
hnf_solve	461145
hnfadd	0
hnfadd_i	92558
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227391
hnflll	7
hnfmerge_get_1	816122
hnfmod	14
hnfmodid	438372
hnfperm	14
hnfspec	0
hnfspec_i	134833
hnfswap	8513856
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4634193
negcmpii	602163
normalize_as_RgX	364
optimal_D	5185641
p_mat	0
reduce1	967385
reduce2	53235664
remove_0cols	335666
reverse_rows	465827
smith	385
smithall	35
smithclean	693
snf_group	1029826
snf_pile	1071963
snf_pile1	48
snfrank	154
subzi	6481778
trivsmith	0
update	771836
zlm_echelon	4803180
zv_snf_rank	0

Generated by: LCOV version 1.16