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 30367-364c17a628) Lines: 1602 1778 90.1 % Date: 2025-07-03 09:21:30 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	15869
ZM_hnfcenter	25203
ZM_hnfall	29192
hnf_i	61707
ZM_snfall	64190
ZM_hnf	89421
hnfadd_i	92431
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134788
ZM_hnfmod	162503
hnf_divscale	197413
ZV_snfclean	227085
ZM_rowrankprofile	227217
hnffinal	227219
ZM_hnflll	232727
hnf_invscale	275321
ZV_snf_group	316766
ZV_snfall	316766
ZV_allequal	322719
remove_0cols	335609
count2	421045
hnfmodid	438190
allhnfmod	438204
hnf_solve	461137
reverse_rows	465434
ZpM_echelon	528239
hnf_invimage	547268
negcmpii	602128
ZM_snf_group	712857
ZM_hnfall_i	752459
update	771763
ZM_snfall_i	796457
hnfmerge_get_1	816110
bezout_step	820371
reduce1	967385
ZMrow_divexact_inplace	976555
ZM_snfclean	1029687
snf_group	1029690
snf_pile	1071737
ZM_snf_no_divide	1235234
ZM_redpart	1551804
Minus	2056977
col_dup	2615064
col_mul	3087010
ZM_hnfmodprime	3361417
FpM_echelon	3361425
FpM_hnfend	3361591
ZM_reduce	4476981
ZM_hnfmodid	4528840
must_swap	4631306
zlm_echelon	4797668
ZM_hnfmodall	5131335
optimal_D	5180673
ZM_hnfmodall_i	5182633
FpV_Fp_mul_part_ip	5408034
subzi	6456332
count	8104579
hnfswap	8495458
ZC_lincomb1z	21846653
ZC_lincomb1z_i	21853881
FpV_red_part_ipvec	37666450
ZC_elem	41179588
affii2_or_copy_gc	47795172
reduce2	52981453
findi_normalize	105994420
findi	106003761
addzi	239268039
addmulzii	517805379

Generated by: LCOV version 1.16