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 30255-d53bcee72d) Lines: 1602 1778 90.1 % Date: 2025-05-05 09:18:52 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3143094
FpM_hnfend	3143227
FpV_Fp_mul_part_ip	5308348
FpV_red_part_ipvec	35955231
Minus	2049658
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	39731925
ZC_lincomb1z	21799923
ZC_lincomb1z_i	21809091
ZM_hnf	88830
ZM_hnf_knapsack	238
ZM_hnfall	28726
ZM_hnfall_i	725474
ZM_hnfcenter	25159
ZM_hnflll	231055
ZM_hnfmod	162480
ZM_hnfmodall	4873614
ZM_hnfmodall_i	4924248
ZM_hnfmodid	4301583
ZM_hnfmodprime	3143092
ZM_hnfperm	385
ZM_redpart	1388024
ZM_reduce	4128310
ZM_rowrankprofile	225549
ZM_snf	10864
ZM_snf_group	643664
ZM_snf_no_divide	1076963
ZM_snfall	63959
ZM_snfall_i	722020
ZM_snfclean	947665
ZMrow_divexact_inplace	862817
ZV_allequal	219929
ZV_extgcd	109242
ZV_gcdext_i	109256
ZV_hnfgcdext	21
ZV_snf_group	303953
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	303952
ZV_snfclean	214280
ZpM_echelon	528097
addmulzii	517283341
addzi	239023883
affii2_or_copy_gc	47758419
allhnfmod	407961
bezout_step	702695
col_dup	2608053
col_mul	2698271
count	8100057
count2	420186
do_zero	0
findi	105725334
findi_normalize	105717634
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	196659
hnf_i	61582
hnf_invimage	372325
hnf_invscale	237232
hnf_solve	321184
hnfadd	0
hnfadd_i	91343
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	225547
hnflll	7
hnfmerge_get_1	743662
hnfmod	14
hnfmodid	407947
hnfperm	14
hnfspec	0
hnfspec_i	134204
hnfswap	8464015
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4607578
negcmpii	520346
normalize_as_RgX	364
optimal_D	4922221
p_mat	0
reduce1	950593
reduce2	52849496
remove_0cols	321658
reverse_rows	462098
smith	385
smithall	35
smithclean	693
snf_group	947669
snf_pile	984761
snf_pile1	48
snfrank	154
subzi	6442710
trivsmith	0
update	674580
zlm_echelon	4670730
zv_snf_rank	0

Generated by: LCOV version 1.16