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 30548-ec77dc363d) Lines: 1603 1779 90.1 % Date: 2025-11-14 09:22:38 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	25203
ZM_hnfall	29211
hnf_i	61736
ZM_snfall	64204
ZM_hnf	89442
hnfadd_i	92393
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134818
ZM_hnfmod	162579
hnf_divscale	197449
ZV_snfclean	227082
ZM_rowrankprofile	227209
hnffinal	227211
ZM_hnflll	232741
hnf_invscale	275337
ZV_snf_group	316772
ZV_snfall	316772
ZV_allequal	322721
remove_0cols	335679
count2	421234
hnfmodid	438219
allhnfmod	438233
hnf_solve	461148
reverse_rows	465456
ZpM_echelon	528254
hnf_invimage	547285
negcmpii	602129
ZM_snf_group	712907
ZM_hnfall_i	752495
update	771802
ZM_snfall_i	796580
hnfmerge_get_1	816135
bezout_step	820494
reduce1	967385
ZMrow_divexact_inplace	976608
ZM_snfclean	1029748
snf_group	1029753
snf_pile	1071894
ZM_snf_no_divide	1235386
ZM_redpart	1552039
Minus	2058361
col_dup	2616914
col_mul	3087205
FpM_echelon	3363955
ZM_hnfmodprime	3363963
FpM_hnfend	3364242
ZM_reduce	4478789
ZM_hnfmodid	4531409
must_swap	4631516
zlm_echelon	4801400
ZM_hnfmodall	5134068
optimal_D	5183307
ZM_hnfmodall_i	5185345
FpV_Fp_mul_part_ip	5411240
subzi	6458937
count	8148592
hnfswap	8500348
ZC_lincomb1z	21866307
ZC_lincomb1z_i	21875681
FpV_red_part_ipvec	37682640
ZC_elem	41192086
affii2_or_copy_gc	47846306
reduce2	53022183
findi_normalize	106068489
findi	106073751
addzi	239760900
addmulzii	518515540

Generated by: LCOV version 1.16