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 30574-595e4ba651) Lines: 1603 1779 90.1 % Date: 2025-12-17 09:21:45 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	25199
ZM_hnfall	29249
hnf_i	61737
ZM_snfall	64218
ZM_hnf	89481
hnfadd_i	92598
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134831
ZM_hnfmod	162600
hnf_divscale	197691
ZV_snfclean	227092
hnffinal	227428
ZM_rowrankprofile	227429
ZM_hnflll	232958
hnf_invscale	275361
ZV_snf_group	316802
ZV_snfall	316802
ZV_allequal	322738
remove_0cols	335710
count2	421493
hnfmodid	438377
allhnfmod	438391
hnf_solve	461156
reverse_rows	465899
ZpM_echelon	528402
hnf_invimage	547530
negcmpii	602149
ZM_snf_group	712959
ZM_hnfall_i	752539
update	771941
ZM_snfall_i	796646
hnfmerge_get_1	816118
bezout_step	820575
reduce1	967385
ZMrow_divexact_inplace	976805
ZM_snfclean	1029814
snf_group	1029822
snf_pile	1071955
ZM_snf_no_divide	1235533
ZM_redpart	1552188
Minus	2060699
col_dup	2617613
col_mul	3087678
FpM_echelon	3364541
ZM_hnfmodprime	3364548
FpM_hnfend	3364863
ZM_reduce	4481002
ZM_hnfmodid	4533496
must_swap	4634103
zlm_echelon	4803082
ZM_hnfmodall	5136291
optimal_D	5185784
ZM_hnfmodall_i	5187608
FpV_Fp_mul_part_ip	5412813
subzi	6483274
count	8160583
hnfswap	8513918
ZC_lincomb1z	21911380
ZC_lincomb1z_i	21918620
FpV_red_part_ipvec	37706189
ZC_elem	41217359
affii2_or_copy_gc	48051577
reduce2	53238508
findi_normalize	106508955
findi	106516450
addzi	240213475
addmulzii	520348710

Generated by: LCOV version 1.16