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
FpM_echelon	3361425
FpM_hnfend	3361591
FpV_Fp_mul_part_ip	5408034
FpV_red_part_ipvec	37666450
Minus	2056977
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41179588
ZC_lincomb1z	21846653
ZC_lincomb1z_i	21853881
ZM_hnf	89421
ZM_hnf_knapsack	238
ZM_hnfall	29192
ZM_hnfall_i	752459
ZM_hnfcenter	25203
ZM_hnflll	232727
ZM_hnfmod	162503
ZM_hnfmodall	5131335
ZM_hnfmodall_i	5182633
ZM_hnfmodid	4528840
ZM_hnfmodprime	3361417
ZM_hnfperm	385
ZM_redpart	1551804
ZM_reduce	4476981
ZM_rowrankprofile	227217
ZM_snf	15869
ZM_snf_group	712857
ZM_snf_no_divide	1235234
ZM_snfall	64190
ZM_snfall_i	796457
ZM_snfclean	1029687
ZMrow_divexact_inplace	976555
ZV_allequal	322719
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316766
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316766
ZV_snfclean	227085
ZpM_echelon	528239
addmulzii	517805379
addzi	239268039
affii2_or_copy_gc	47795172
allhnfmod	438204
bezout_step	820371
col_dup	2615064
col_mul	3087010
count	8104579
count2	421045
do_zero	0
findi	106003761
findi_normalize	105994420
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197413
hnf_i	61707
hnf_invimage	547268
hnf_invscale	275321
hnf_solve	461137
hnfadd	0
hnfadd_i	92431
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227219
hnflll	7
hnfmerge_get_1	816110
hnfmod	14
hnfmodid	438190
hnfperm	14
hnfspec	0
hnfspec_i	134788
hnfswap	8495458
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4631306
negcmpii	602128
normalize_as_RgX	364
optimal_D	5180673
p_mat	0
reduce1	967385
reduce2	52981453
remove_0cols	335609
reverse_rows	465434
smith	385
smithall	35
smithclean	693
snf_group	1029690
snf_pile	1071737
snf_pile1	48
snfrank	154
subzi	6456332
trivsmith	0
update	771763
zlm_echelon	4797668
zv_snf_rank	0

Generated by: LCOV version 1.16