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 30616-7aa4fb0184) Lines: 1603 1779 90.1 % Date: 2026-01-17 09:22:32 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	25170
ZM_hnfall	29310
hnf_i	61709
ZM_snfall	64190
ZM_hnf	89514
hnfadd_i	92600
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134579
ZM_hnfmod	162552
hnf_divscale	197476
ZV_snfclean	227093
ZM_rowrankprofile	227178
hnffinal	227179
ZM_hnflll	232709
hnf_invscale	275326
ZV_snf_group	316802
ZV_snfall	316802
ZV_allequal	322712
remove_0cols	335740
count2	421222
hnfmodid	438098
allhnfmod	438112
hnf_solve	461151
reverse_rows	465388
ZpM_echelon	528155
hnf_invimage	547529
negcmpii	602158
ZM_snf_group	712627
ZM_hnfall_i	752579
update	771865
ZM_snfall_i	796288
hnfmerge_get_1	815981
bezout_step	820505
reduce1	967385
ZMrow_divexact_inplace	976410
ZM_snfclean	1029514
snf_group	1029518
snf_pile	1071642
ZM_snf_no_divide	1235389
ZM_redpart	1552064
Minus	2055903
col_dup	2614799
col_mul	3087413
FpM_echelon	3364153
ZM_hnfmodprime	3364161
FpM_hnfend	3364438
ZM_reduce	4473350
ZM_hnfmodid	4536388
must_swap	4619913
zlm_echelon	4801489
ZM_hnfmodall	5138890
optimal_D	5187948
ZM_hnfmodall_i	5190018
FpV_Fp_mul_part_ip	5411478
subzi	6468339
count	8160303
hnfswap	8497780
ZC_lincomb1z	21855184
ZC_lincomb1z_i	21866309
FpV_red_part_ipvec	37705136
ZC_elem	41204736
affii2_or_copy_gc	47949709
reduce2	53137872
findi_normalize	106307246
findi	106315912
addzi	239342415
addmulzii	518956438

Generated by: LCOV version 1.16