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 30582-6e9af8ee1d) Lines: 1603 1779 90.1 % Date: 2025-12-20 09:23:49 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	25220
ZM_hnfall	29224
hnf_i	61735
ZM_snfall	64204
ZM_hnf	89454
hnfadd_i	92527
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134835
ZM_hnfmod	162574
hnf_divscale	197716
ZV_snfclean	227097
ZM_rowrankprofile	227361
hnffinal	227361
ZM_hnflll	232891
hnf_invscale	275340
ZV_snf_group	316798
ZV_snfall	316798
ZV_allequal	322726
remove_0cols	335686
count2	421339
hnfmodid	438355
allhnfmod	438369
hnf_solve	461144
reverse_rows	465767
ZpM_echelon	528480
hnf_invimage	547528
negcmpii	602156
ZM_snf_group	712921
ZM_hnfall_i	752506
update	771876
ZM_snfall_i	796598
hnfmerge_get_1	816120
bezout_step	820530
reduce1	967385
ZMrow_divexact_inplace	976742
ZM_snfclean	1029789
snf_group	1029790
snf_pile	1071916
ZM_snf_no_divide	1235442
ZM_redpart	1552012
Minus	2059496
col_dup	2617546
col_mul	3087479
FpM_echelon	3364563
ZM_hnfmodprime	3364566
FpM_hnfend	3364700
ZM_reduce	4479426
ZM_hnfmodid	4533568
must_swap	4633179
zlm_echelon	4803490
ZM_hnfmodall	5136336
optimal_D	5185712
ZM_hnfmodall_i	5187706
FpV_Fp_mul_part_ip	5412640
subzi	6479512
count	8161952
hnfswap	8513097
ZC_lincomb1z	21905629
ZC_lincomb1z_i	21915940
FpV_red_part_ipvec	37706530
ZC_elem	41213774
affii2_or_copy_gc	48045137
reduce2	53235300
findi_normalize	106499984
findi	106502764
addzi	240333841
addmulzii	520448813

Generated by: LCOV version 1.16