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
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	25197
ZM_hnfall	29179
hnf_i	61700
ZM_snfall	64203
ZM_hnf	89374
hnfadd_i	92483
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134814
ZM_hnfmod	162581
hnf_divscale	197440
ZV_snfclean	227094
ZM_rowrankprofile	227296
hnffinal	227298
ZM_hnflll	232828
hnf_invscale	275340
ZV_snf_group	316770
ZV_snfall	316770
ZV_allequal	322718
remove_0cols	335604
count2	421149
hnfmodid	438218
allhnfmod	438232
hnf_solve	461154
reverse_rows	465641
ZpM_echelon	528237
hnf_invimage	547288
negcmpii	602120
ZM_snf_group	712885
ZM_hnfall_i	752454
update	771839
ZM_snfall_i	796557
hnfmerge_get_1	816124
bezout_step	820489
reduce1	967385
ZMrow_divexact_inplace	976624
snf_group	1029752
ZM_snfclean	1029753
snf_pile	1071861
ZM_snf_no_divide	1235371
ZM_redpart	1552008
Minus	2058721
col_dup	2616852
col_mul	3087309
ZM_hnfmodprime	3363972
FpM_echelon	3363976
FpM_hnfend	3364233
ZM_reduce	4470953
ZM_hnfmodid	4531210
must_swap	4631705
zlm_echelon	4801282
ZM_hnfmodall	5133874
optimal_D	5183006
ZM_hnfmodall_i	5185144
FpV_Fp_mul_part_ip	5411084
subzi	6459507
count	8149761
hnfswap	8502321
ZC_lincomb1z	21870416
ZC_lincomb1z_i	21881046
FpV_red_part_ipvec	37677946
ZC_elem	41178272
affii2_or_copy_gc	47843880
reduce2	53022125
findi_normalize	106074602
findi	106077727
addzi	239644877
addmulzii	518436190

Generated by: LCOV version 1.16