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 30672-116f3d5b0e) Lines: 1603 1779 90.1 % Date: 2026-02-07 09:23:42 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364271
FpM_hnfend	3364401
FpV_Fp_mul_part_ip	5411533
FpV_red_part_ipvec	37715113
Minus	2055620
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41209341
ZC_lincomb1z	21864756
ZC_lincomb1z_i	21873989
ZM_hnf	89546
ZM_hnf_knapsack	238
ZM_hnfall	29333
ZM_hnfall_i	752606
ZM_hnfcenter	25174
ZM_hnflll	232672
ZM_hnfmod	162550
ZM_hnfmodall	5139374
ZM_hnfmodall_i	5190456
ZM_hnfmodid	4536875
ZM_hnfmodprime	3364181
ZM_hnfperm	385
ZM_redpart	1551859
ZM_reduce	4472852
ZM_rowrankprofile	227143
ZM_snf	15925
ZM_snf_group	712658
ZM_snf_no_divide	1235314
ZM_snfall	64190
ZM_snfall_i	796319
ZM_snfclean	1029657
ZMrow_divexact_inplace	976445
ZV_allequal	322710
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316936
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316936
ZV_snfclean	227093
ZpM_echelon	528149
addmulzii	518966600
addzi	239500342
affii2_or_copy_gc	47964363
allhnfmod	438123
bezout_step	820408
col_dup	2614813
col_mul	3087117
count	8161096
count2	421161
do_zero	0
findi	106336881
findi_normalize	106332916
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197481
hnf_i	61718
hnf_invimage	547537
hnf_invscale	275327
hnf_solve	461145
hnfadd	0
hnfadd_i	92567
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227143
hnflll	7
hnfmerge_get_1	815996
hnfmod	14
hnfmodid	438109
hnfperm	14
hnfspec	0
hnfspec_i	134576
hnfswap	8498727
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4619637
negcmpii	602524
normalize_as_RgX	364
optimal_D	5188338
p_mat	0
reduce1	967385
reduce2	53155721
remove_0cols	335781
reverse_rows	465323
smith	385
smithall	35
smithclean	693
snf_group	1029661
snf_pile	1071801
snf_pile1	48
snfrank	154
subzi	6469373
trivsmith	0
update	771795
zlm_echelon	4801651
zv_snf_rank	0

Generated by: LCOV version 1.16