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 30600-bbb75e9497) Lines: 1603 1779 90.1 % Date: 2026-01-05 09:22:13 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364171
FpM_hnfend	3364350
FpV_Fp_mul_part_ip	5411468
FpV_red_part_ipvec	37708274
Minus	2056353
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41210751
ZC_lincomb1z	21867009
ZC_lincomb1z_i	21876224
ZM_hnf	89597
ZM_hnf_knapsack	238
ZM_hnfall	29352
ZM_hnfall_i	752628
ZM_hnfcenter	25163
ZM_hnflll	232765
ZM_hnfmod	162552
ZM_hnfmodall	5139105
ZM_hnfmodall_i	5190211
ZM_hnfmodid	4536592
ZM_hnfmodprime	3364177
ZM_hnfperm	385
ZM_redpart	1551819
ZM_reduce	4477216
ZM_rowrankprofile	227233
ZM_snf	15925
ZM_snf_group	712638
ZM_snf_no_divide	1235303
ZM_snfall	64189
ZM_snfall_i	796295
ZM_snfclean	1029510
ZMrow_divexact_inplace	976383
ZV_allequal	322708
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316803
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316803
ZV_snfclean	227096
ZpM_echelon	528168
addmulzii	519111370
addzi	239526487
affii2_or_copy_gc	47961019
allhnfmod	438116
bezout_step	820375
col_dup	2614869
col_mul	3086833
count	8161357
count2	421188
do_zero	0
findi	106359557
findi_normalize	106352680
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197485
hnf_i	61750
hnf_invimage	547529
hnf_invscale	275321
hnf_solve	461154
hnfadd	0
hnfadd_i	92659
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227235
hnflll	7
hnfmerge_get_1	815976
hnfmod	14
hnfmodid	438102
hnfperm	14
hnfspec	0
hnfspec_i	134575
hnfswap	8500106
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4620860
negcmpii	602159
normalize_as_RgX	364
optimal_D	5188173
p_mat	0
reduce1	967385
reduce2	53159402
remove_0cols	335832
reverse_rows	465503
smith	385
smithall	35
smithclean	693
snf_group	1029515
snf_pile	1071623
snf_pile1	48
snfrank	154
subzi	6470975
trivsmith	0
update	771726
zlm_echelon	4801637
zv_snf_rank	0

Generated by: LCOV version 1.16