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 30571-c0dfe82732) Lines: 1603 1779 90.1 % Date: 2025-12-09 09:22:05 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364607
FpM_hnfend	3364880
FpV_Fp_mul_part_ip	5412787
FpV_red_part_ipvec	37703567
Minus	2060667
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41209283
ZC_lincomb1z	21907993
ZC_lincomb1z_i	21915400
ZM_hnf	89453
ZM_hnf_knapsack	238
ZM_hnfall	29230
ZM_hnfall_i	752525
ZM_hnfcenter	25203
ZM_hnflll	232962
ZM_hnfmod	162601
ZM_hnfmodall	5136394
ZM_hnfmodall_i	5187749
ZM_hnfmodid	4533584
ZM_hnfmodprime	3364602
ZM_hnfperm	385
ZM_redpart	1552160
ZM_reduce	4478792
ZM_rowrankprofile	227432
ZM_snf	15925
ZM_snf_group	712930
ZM_snf_no_divide	1235533
ZM_snfall	64217
ZM_snfall_i	796617
ZM_snfclean	1029832
ZMrow_divexact_inplace	976762
ZV_allequal	322739
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316797
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316797
ZV_snfclean	227090
ZpM_echelon	528403
addmulzii	520284170
addzi	240185010
affii2_or_copy_gc	48043988
allhnfmod	438388
bezout_step	820595
col_dup	2617577
col_mul	3087669
count	8160223
count2	421279
do_zero	0
findi	106506275
findi_normalize	106497223
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197691
hnf_i	61728
hnf_invimage	547523
hnf_invscale	275362
hnf_solve	461143
hnfadd	0
hnfadd_i	92601
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227431
hnflll	7
hnfmerge_get_1	816138
hnfmod	14
hnfmodid	438374
hnfperm	14
hnfspec	0
hnfspec_i	134827
hnfswap	8512954
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4632718
negcmpii	602159
normalize_as_RgX	364
optimal_D	5185820
p_mat	0
reduce1	967385
reduce2	53233055
remove_0cols	335674
reverse_rows	465899
smith	385
smithall	35
smithclean	693
snf_group	1029837
snf_pile	1071962
snf_pile1	48
snfrank	154
subzi	6482550
trivsmith	0
update	771931
zlm_echelon	4803145
zv_snf_rank	0

Generated by: LCOV version 1.16