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 30584-b9873745ba) Lines: 1603 1779 90.1 % Date: 2025-12-21 09:21:02 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	25170
ZM_hnfall	29238
hnf_i	61726
ZM_snfall	64190
ZM_hnf	89458
hnfadd_i	92434
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134557
ZM_hnfmod	162543
hnf_divscale	197494
ZM_rowrankprofile	226993
hnffinal	226993
ZV_snfclean	227096
ZM_hnflll	232523
hnf_invscale	275327
ZV_snf_group	316795
ZV_snfall	316795
ZV_allequal	322710
remove_0cols	335688
count2	420911
hnfmodid	438332
allhnfmod	438346
hnf_solve	461153
reverse_rows	465022
ZpM_echelon	528148
hnf_invimage	547531
negcmpii	602157
ZM_snf_group	712626
ZM_hnfall_i	752513
update	771796
ZM_snfall_i	796283
hnfmerge_get_1	816130
bezout_step	820447
reduce1	967385
ZMrow_divexact_inplace	976394
ZM_snfclean	1029501
snf_group	1029501
snf_pile	1071633
ZM_snf_no_divide	1235345
ZM_redpart	1551913
Minus	2056752
col_dup	2614757
col_mul	3087143
FpM_echelon	3364456
ZM_hnfmodprime	3364458
FpM_hnfend	3364649
ZM_reduce	4477795
ZM_hnfmodid	4531929
must_swap	4626036
zlm_echelon	4801693
ZM_hnfmodall	5134635
optimal_D	5183918
ZM_hnfmodall_i	5185777
FpV_Fp_mul_part_ip	5411736
subzi	6478092
count	8159380
hnfswap	8503913
ZC_lincomb1z	21891466
ZC_lincomb1z_i	21900857
FpV_red_part_ipvec	37688220
ZC_elem	41194587
affii2_or_copy_gc	48033207
reduce2	53204631
findi_normalize	106434791
findi	106442545
addzi	240339903
addmulzii	520509069

Generated by: LCOV version 1.16