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 30540-a74e376001) Lines: 1603 1779 90.1 % Date: 2025-11-08 09:22:52 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3363976
FpM_hnfend	3364233
FpV_Fp_mul_part_ip	5411084
FpV_red_part_ipvec	37677946
Minus	2058721
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41178272
ZC_lincomb1z	21870416
ZC_lincomb1z_i	21881046
ZM_hnf	89374
ZM_hnf_knapsack	238
ZM_hnfall	29179
ZM_hnfall_i	752454
ZM_hnfcenter	25197
ZM_hnflll	232828
ZM_hnfmod	162581
ZM_hnfmodall	5133874
ZM_hnfmodall_i	5185144
ZM_hnfmodid	4531210
ZM_hnfmodprime	3363972
ZM_hnfperm	385
ZM_redpart	1552008
ZM_reduce	4470953
ZM_rowrankprofile	227296
ZM_snf	15925
ZM_snf_group	712885
ZM_snf_no_divide	1235371
ZM_snfall	64203
ZM_snfall_i	796557
ZM_snfclean	1029753
ZMrow_divexact_inplace	976624
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	227094
ZpM_echelon	528237
addmulzii	518436190
addzi	239644877
affii2_or_copy_gc	47843880
allhnfmod	438232
bezout_step	820489
col_dup	2616852
col_mul	3087309
count	8149761
count2	421149
do_zero	0
findi	106077727
findi_normalize	106074602
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197440
hnf_i	61700
hnf_invimage	547288
hnf_invscale	275340
hnf_solve	461154
hnfadd	0
hnfadd_i	92483
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227298
hnflll	7
hnfmerge_get_1	816124
hnfmod	14
hnfmodid	438218
hnfperm	14
hnfspec	0
hnfspec_i	134814
hnfswap	8502321
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4631705
negcmpii	602120
normalize_as_RgX	364
optimal_D	5183006
p_mat	0
reduce1	967385
reduce2	53022125
remove_0cols	335604
reverse_rows	465641
smith	385
smithall	35
smithclean	693
snf_group	1029752
snf_pile	1071861
snf_pile1	48
snfrank	154
subzi	6459507
trivsmith	0
update	771839
zlm_echelon	4801282
zv_snf_rank	0

Generated by: LCOV version 1.16