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 30718-589d22da69) Lines: 1603 1779 90.1 % Date: 2026-02-27 09:23:18 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	25168
ZM_hnfall	29325
hnf_i	61760
ZM_snfall	64190
ZM_hnf	89580
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117223
ZM_hnfmod	162550
hnfspec_i	186291
hnf_divscale	197481
ZV_snfclean	227092
hnf_invscale	275326
ZM_rowrankprofile	303505
hnffinal	303519
ZM_hnflll	309045
ZV_snf_group	316935
ZV_snfall	316935
ZV_allequal	322714
remove_0cols	335784
hnfmodid	438108
allhnfmod	438122
hnf_solve	461167
ZpM_echelon	528153
hnf_invimage	547540
count2	554841
negcmpii	602520
reverse_rows	618050
ZM_hnfall_i	752596
ZM_snf_group	764373
hnfmerge_get_1	815979
update	842079
ZM_snfall_i	848033
bezout_step	890736
reduce1	967385
ZMrow_divexact_inplace	1070789
ZM_snfclean	1081371
snf_group	1081374
snf_pile	1123476
ZM_snf_no_divide	1301973
ZM_redpart	1690398
Minus	2992635
ZM_hnfmodprime	3364069
FpM_echelon	3364128
FpM_hnfend	3364178
col_mul	3368292
col_dup	3768062
ZM_reduce	4481476
ZM_hnfmodid	4536777
zlm_echelon	4801479
ZM_hnfmodall	5139292
optimal_D	5188487
ZM_hnfmodall_i	5190401
FpV_Fp_mul_part_ip	5411553
must_swap	6172413
subzi	7910083
count	10214819
hnfswap	11601349
ZC_lincomb1z	29900077
ZC_lincomb1z_i	29918843
FpV_red_part_ipvec	37715157
ZC_elem	41254702
affii2_or_copy_gc	54275042
reduce2	64281598
findi_normalize	128603251
findi	128624947
addzi	277598814
addmulzii	583521835

Generated by: LCOV version 1.16