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 30502-9830c20844) Lines: 1602 1778 90.1 % Date: 2025-09-22 09:23:52 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364013
FpM_hnfend	3364222
FpV_Fp_mul_part_ip	5411324
FpV_red_part_ipvec	37677973
Minus	2058747
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41192399
ZC_lincomb1z	21868491
ZC_lincomb1z_i	21875025
ZM_hnf	89429
ZM_hnf_knapsack	238
ZM_hnfall	29195
ZM_hnfall_i	752477
ZM_hnfcenter	25198
ZM_hnflll	232771
ZM_hnfmod	162582
ZM_hnfmodall	5133911
ZM_hnfmodall_i	5185203
ZM_hnfmodid	4531280
ZM_hnfmodprime	3364014
ZM_hnfperm	385
ZM_redpart	1551748
ZM_reduce	4478994
ZM_rowrankprofile	227242
ZM_snf	15925
ZM_snf_group	712888
ZM_snf_no_divide	1235269
ZM_snfall	64202
ZM_snfall_i	796558
ZM_snfclean	1029746
ZMrow_divexact_inplace	976614
ZV_allequal	322718
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316771
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316771
ZV_snfclean	227094
ZpM_echelon	528259
addmulzii	518250028
addzi	239522275
affii2_or_copy_gc	47850257
allhnfmod	438229
bezout_step	820365
col_dup	2616835
col_mul	3086850
count	8148483
count2	421373
do_zero	0
findi	106082268
findi_normalize	106074588
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197438
hnf_i	61739
hnf_invimage	547292
hnf_invscale	275333
hnf_solve	461157
hnfadd	0
hnfadd_i	92428
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227241
hnflll	7
hnfmerge_get_1	816135
hnfmod	14
hnfmodid	438215
hnfperm	14
hnfspec	0
hnfspec_i	134813
hnfswap	8500986
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4632294
negcmpii	602125
normalize_as_RgX	364
optimal_D	5183233
p_mat	0
reduce1	967385
reduce2	53022604
remove_0cols	335654
reverse_rows	465525
smith	385
smithall	35
smithclean	693
snf_group	1029747
snf_pile	1071882
snf_pile1	48
snfrank	154
subzi	6459428
trivsmith	0
update	771726
zlm_echelon	4801393
zv_snf_rank	0

Generated by: LCOV version 1.16