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 30504-e6f76a2795) Lines: 1602 1778 90.1 % Date: 2025-09-29 09:23:05 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3363963
FpM_hnfend	3364125
FpV_Fp_mul_part_ip	5411242
FpV_red_part_ipvec	37679792
Minus	2058969
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41186207
ZC_lincomb1z	21868992
ZC_lincomb1z_i	21875624
ZM_hnf	89414
ZM_hnf_knapsack	238
ZM_hnfall	29180
ZM_hnfall_i	752456
ZM_hnfcenter	25201
ZM_hnflll	232840
ZM_hnfmod	162582
ZM_hnfmodall	5133858
ZM_hnfmodall_i	5185164
ZM_hnfmodid	4531263
ZM_hnfmodprime	3363981
ZM_hnfperm	385
ZM_redpart	1551908
ZM_reduce	4477195
ZM_rowrankprofile	227309
ZM_snf	15925
ZM_snf_group	712894
ZM_snf_no_divide	1235337
ZM_snfall	64204
ZM_snfall_i	796565
ZM_snfclean	1029746
ZMrow_divexact_inplace	976625
ZV_allequal	322718
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316767
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316767
ZV_snfclean	227093
ZpM_echelon	528251
addmulzii	518271204
addzi	239569120
affii2_or_copy_gc	47853072
allhnfmod	438231
bezout_step	820417
col_dup	2616900
col_mul	3087040
count	8149539
count2	421187
do_zero	0
findi	106069890
findi_normalize	106062020
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197442
hnf_i	61739
hnf_invimage	547277
hnf_invscale	275331
hnf_solve	461144
hnfadd	0
hnfadd_i	92494
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227310
hnflll	7
hnfmerge_get_1	816103
hnfmod	14
hnfmodid	438217
hnfperm	14
hnfspec	0
hnfspec_i	134813
hnfswap	8502187
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4633211
negcmpii	602119
normalize_as_RgX	364
optimal_D	5183264
p_mat	0
reduce1	967385
reduce2	53018507
remove_0cols	335602
reverse_rows	465661
smith	385
smithall	35
smithclean	693
snf_group	1029755
snf_pile	1071869
snf_pile1	48
snfrank	154
subzi	6461042
trivsmith	0
update	771774
zlm_echelon	4801252
zv_snf_rank	0

Generated by: LCOV version 1.16