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 30674-be81ecfdd4) Lines: 1603 1779 90.1 % Date: 2026-02-11 09:23:10 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	25165
ZM_hnfall	29371
hnf_i	61739
ZM_snfall	64190
ZM_hnf	89605
hnfadd_i	92603
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134578
ZM_hnfmod	162552
hnf_divscale	197478
ZV_snfclean	227091
hnffinal	227180
ZM_rowrankprofile	227181
ZM_hnflll	232710
hnf_invscale	275325
ZV_snf_group	316938
ZV_snfall	316938
ZV_allequal	322712
remove_0cols	335847
count2	421072
hnfmodid	438100
allhnfmod	438114
hnf_solve	461158
reverse_rows	465413
ZpM_echelon	528151
hnf_invimage	547528
negcmpii	602530
ZM_snf_group	712665
ZM_hnfall_i	752647
update	771824
ZM_snfall_i	796336
hnfmerge_get_1	815990
bezout_step	820453
reduce1	967385
ZMrow_divexact_inplace	976435
ZM_snfclean	1029662
snf_group	1029663
snf_pile	1071824
ZM_snf_no_divide	1235337
ZM_redpart	1551891
Minus	2055802
col_dup	2614859
col_mul	3087252
FpM_echelon	3364256
ZM_hnfmodprime	3364260
FpM_hnfend	3364464
ZM_reduce	4480605
ZM_hnfmodid	4537033
must_swap	4621195
zlm_echelon	4801614
ZM_hnfmodall	5139563
optimal_D	5188745
ZM_hnfmodall_i	5190670
FpV_Fp_mul_part_ip	5411603
subzi	6471737
count	8159967
hnfswap	8502050
ZC_lincomb1z	21872109
ZC_lincomb1z_i	21879741
FpV_red_part_ipvec	37721188
ZC_elem	41224976
affii2_or_copy_gc	47983623
reduce2	53179695
findi_normalize	106372567
findi	106377515
addzi	239869881
addmulzii	519429681

Generated by: LCOV version 1.16