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
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	25174
ZM_hnfall	29333
hnf_i	61718
ZM_snfall	64190
ZM_hnf	89546
hnfadd_i	92567
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134576
ZM_hnfmod	162550
hnf_divscale	197481
ZV_snfclean	227093
ZM_rowrankprofile	227143
hnffinal	227143
ZM_hnflll	232672
hnf_invscale	275327
ZV_snf_group	316936
ZV_snfall	316936
ZV_allequal	322710
remove_0cols	335781
count2	421161
hnfmodid	438109
allhnfmod	438123
hnf_solve	461145
reverse_rows	465323
ZpM_echelon	528149
hnf_invimage	547537
negcmpii	602524
ZM_snf_group	712658
ZM_hnfall_i	752606
update	771795
ZM_snfall_i	796319
hnfmerge_get_1	815996
bezout_step	820408
reduce1	967385
ZMrow_divexact_inplace	976445
ZM_snfclean	1029657
snf_group	1029661
snf_pile	1071801
ZM_snf_no_divide	1235314
ZM_redpart	1551859
Minus	2055620
col_dup	2614813
col_mul	3087117
ZM_hnfmodprime	3364181
FpM_echelon	3364271
FpM_hnfend	3364401
ZM_reduce	4472852
ZM_hnfmodid	4536875
must_swap	4619637
zlm_echelon	4801651
ZM_hnfmodall	5139374
optimal_D	5188338
ZM_hnfmodall_i	5190456
FpV_Fp_mul_part_ip	5411533
subzi	6469373
count	8161096
hnfswap	8498727
ZC_lincomb1z	21864756
ZC_lincomb1z_i	21873989
FpV_red_part_ipvec	37715113
ZC_elem	41209341
affii2_or_copy_gc	47964363
reduce2	53155721
findi_normalize	106332916
findi	106336881
addzi	239500342
addmulzii	518966600

Generated by: LCOV version 1.16