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 30446-bebd557ed6) Lines: 1604 1778 90.2 % Date: 2025-08-06 09:23:53 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3361865
FpM_hnfend	3362122
FpV_Fp_mul_part_ip	5409043
FpV_red_part_ipvec	37665569
Minus	2058940
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41178284
ZC_lincomb1z	21868492
ZC_lincomb1z_i	21878467
ZM_hnf	89414
ZM_hnf_knapsack	238
ZM_hnfall	29160
ZM_hnfall_i	752436
ZM_hnfcenter	25202
ZM_hnflll	232840
ZM_hnfmod	162567
ZM_hnfmodall	5131555
ZM_hnfmodall_i	5182869
ZM_hnfmodid	4528934
ZM_hnfmodprime	3361863
ZM_hnfperm	385
ZM_redpart	1551858
ZM_reduce	4477071
ZM_rowrankprofile	227308
ZM_snf	15925
ZM_snf_group	712859
ZM_snf_no_divide	1235336
ZM_snfall	64197
ZM_snfall_i	796527
ZM_snfclean	1029719
ZMrow_divexact_inplace	976592
ZV_allequal	322718
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316770
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316770
ZV_snfclean	227089
ZpM_echelon	528259
addmulzii	518122191
addzi	239491685
affii2_or_copy_gc	47843336
allhnfmod	438232
bezout_step	820472
col_dup	2616814
col_mul	3087247
count	8149480
count2	421244
do_zero	0
findi	106100238
findi_normalize	106092530
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197450
hnf_i	61731
hnf_invimage	547287
hnf_invscale	275321
hnf_solve	461149
hnfadd	0
hnfadd_i	92501
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227310
hnflll	7
hnfmerge_get_1	816126
hnfmod	14
hnfmodid	438218
hnfperm	14
hnfspec	0
hnfspec_i	134807
hnfswap	8501738
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4633317
negcmpii	602126
normalize_as_RgX	364
optimal_D	5180922
p_mat	0
reduce1	967385
reduce2	53026203
remove_0cols	335610
reverse_rows	465657
smith	385
smithall	35
smithclean	693
snf_group	1029724
snf_pile	1071866
snf_pile1	48
snfrank	154
subzi	6459387
trivsmith	0
update	771826
zlm_echelon	4799293
zv_snf_rank	0

Generated by: LCOV version 1.16