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 30530-11e908049b) Lines: 1602 1778 90.1 % Date: 2025-10-13 09:22:58 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3363955
FpM_hnfend	3364088
FpV_Fp_mul_part_ip	5411194
FpV_red_part_ipvec	37677524
Minus	2059269
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41179913
ZC_lincomb1z	21868692
ZC_lincomb1z_i	21879351
ZM_hnf	89393
ZM_hnf_knapsack	238
ZM_hnfall	29189
ZM_hnfall_i	752471
ZM_hnfcenter	25197
ZM_hnflll	232874
ZM_hnfmod	162581
ZM_hnfmodall	5133751
ZM_hnfmodall_i	5185036
ZM_hnfmodid	4531104
ZM_hnfmodprime	3363963
ZM_hnfperm	385
ZM_redpart	1551910
ZM_reduce	4471290
ZM_rowrankprofile	227344
ZM_snf	15925
ZM_snf_group	712893
ZM_snf_no_divide	1235315
ZM_snfall	64204
ZM_snfall_i	796566
ZM_snfclean	1029742
ZMrow_divexact_inplace	976599
ZV_allequal	322721
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316764
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316764
ZV_snfclean	227086
ZpM_echelon	528244
addmulzii	518262726
addzi	239603168
affii2_or_copy_gc	47851624
allhnfmod	438223
bezout_step	820463
col_dup	2616909
col_mul	3087185
count	8149744
count2	421143
do_zero	0
findi	106084775
findi_normalize	106078545
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197431
hnf_i	61710
hnf_invimage	547287
hnf_invscale	275335
hnf_solve	461156
hnfadd	0
hnfadd_i	92524
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227344
hnflll	7
hnfmerge_get_1	816125
hnfmod	14
hnfmodid	438209
hnfperm	14
hnfspec	0
hnfspec_i	134818
hnfswap	8504190
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4633222
negcmpii	602132
normalize_as_RgX	364
optimal_D	5182606
p_mat	0
reduce1	967385
reduce2	53026121
remove_0cols	335617
reverse_rows	465726
smith	385
smithall	35
smithclean	693
snf_group	1029747
snf_pile	1071868
snf_pile1	48
snfrank	154
subzi	6458612
trivsmith	0
update	771810
zlm_echelon	4801351
zv_snf_rank	0

Generated by: LCOV version 1.16