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
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	29189
hnf_i	61710
ZM_snfall	64204
ZM_hnf	89393
hnfadd_i	92524
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134818
ZM_hnfmod	162581
hnf_divscale	197431
ZV_snfclean	227086
ZM_rowrankprofile	227344
hnffinal	227344
ZM_hnflll	232874
hnf_invscale	275335
ZV_snf_group	316764
ZV_snfall	316764
ZV_allequal	322721
remove_0cols	335617
count2	421143
hnfmodid	438209
allhnfmod	438223
hnf_solve	461156
reverse_rows	465726
ZpM_echelon	528244
hnf_invimage	547287
negcmpii	602132
ZM_snf_group	712893
ZM_hnfall_i	752471
update	771810
ZM_snfall_i	796566
hnfmerge_get_1	816125
bezout_step	820463
reduce1	967385
ZMrow_divexact_inplace	976599
ZM_snfclean	1029742
snf_group	1029747
snf_pile	1071868
ZM_snf_no_divide	1235315
ZM_redpart	1551910
Minus	2059269
col_dup	2616909
col_mul	3087185
FpM_echelon	3363955
ZM_hnfmodprime	3363963
FpM_hnfend	3364088
ZM_reduce	4471290
ZM_hnfmodid	4531104
must_swap	4633222
zlm_echelon	4801351
ZM_hnfmodall	5133751
optimal_D	5182606
ZM_hnfmodall_i	5185036
FpV_Fp_mul_part_ip	5411194
subzi	6458612
count	8149744
hnfswap	8504190
ZC_lincomb1z	21868692
ZC_lincomb1z_i	21879351
FpV_red_part_ipvec	37677524
ZC_elem	41179913
affii2_or_copy_gc	47851624
reduce2	53026121
findi_normalize	106078545
findi	106084775
addzi	239603168
addmulzii	518262726

Generated by: LCOV version 1.16