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 30569-8181146aa1) Lines: 1603 1779 90.1 % Date: 2025-12-03 09:22:05 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
ZV_snf_trunc	0
do_zero	0
gsmith	0
gsmithall	0
hnfadd	0
hnfspec	0
mathnfspec	0
p_mat	0
trivsmith	0
zv_snf_rank	0
hnflll	7
hnf	14
hnfall	14
hnfmod	14
hnfperm	14
ZV_hnfgcdext	21
hnfallgen	21
smithall	35
RgM_hnfall	42
snf_pile1	48
RgXM_snf	49
ZV_snf_rank_u	49
RgM_reduce	84
ZV_snf_rank	91
hnfdivide	133
snfrank	154
gsnf_no_divide	196
ZM_hnf_knapsack	238
mathnf0	287
normalize_as_RgX	364
ZM_hnfperm	385
smith	385
matsnf0	469
RgC_elem	511
smithclean	693
gbezout_step	882
is_RgX	2590
ZM_snf	15925
ZM_hnfcenter	25202
ZM_hnfall	29247
hnf_i	61739
ZM_snfall	64218
ZM_hnf	89480
hnfadd_i	92560
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134831
ZM_hnfmod	162599
hnf_divscale	197683
ZV_snfclean	227090
ZM_rowrankprofile	227390
hnffinal	227392
ZM_hnflll	232922
hnf_invscale	275360
ZV_snf_group	316794
ZV_snfall	316794
ZV_allequal	322737
remove_0cols	335708
count2	421320
hnfmodid	438380
allhnfmod	438394
hnf_solve	461140
reverse_rows	465818
ZpM_echelon	528397
hnf_invimage	547508
negcmpii	602151
ZM_snf_group	712952
ZM_hnfall_i	752546
update	771841
ZM_snfall_i	796639
hnfmerge_get_1	816109
bezout_step	820472
reduce1	967385
ZMrow_divexact_inplace	976799
ZM_snfclean	1029812
snf_group	1029819
snf_pile	1071964
ZM_snf_no_divide	1235495
ZM_redpart	1552020
Minus	2060368
col_dup	2617604
col_mul	3087299
FpM_echelon	3364596
ZM_hnfmodprime	3364609
FpM_hnfend	3364874
ZM_reduce	4477066
ZM_hnfmodid	4533369
must_swap	4633713
zlm_echelon	4803102
ZM_hnfmodall	5136150
optimal_D	5185590
ZM_hnfmodall_i	5187499
FpV_Fp_mul_part_ip	5412831
subzi	6484427
count	8160215
hnfswap	8512376
ZC_lincomb1z	21902953
ZC_lincomb1z_i	21910519
FpV_red_part_ipvec	37701984
ZC_elem	41206600
affii2_or_copy_gc	48042915
reduce2	53228859
findi_normalize	106493193
findi	106503008
addzi	240066742
addmulzii	520105807

Generated by: LCOV version 1.16