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 30572-91e0396466) Lines: 1603 1779 90.1 % Date: 2025-12-14 09:22:17 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364683
FpM_hnfend	3364923
FpV_Fp_mul_part_ip	5412933
FpV_red_part_ipvec	37707040
Minus	2060257
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41214739
ZC_lincomb1z	21903628
ZC_lincomb1z_i	21911260
ZM_hnf	89492
ZM_hnf_knapsack	238
ZM_hnfall	29269
ZM_hnfall_i	752570
ZM_hnfcenter	25205
ZM_hnflll	232931
ZM_hnfmod	162599
ZM_hnfmodall	5136570
ZM_hnfmodall_i	5187914
ZM_hnfmodid	4533793
ZM_hnfmodprime	3364688
ZM_hnfperm	385
ZM_redpart	1552186
ZM_reduce	4479961
ZM_rowrankprofile	227403
ZM_snf	15925
ZM_snf_group	712944
ZM_snf_no_divide	1235530
ZM_snfall	64218
ZM_snfall_i	796630
ZM_snfclean	1029813
ZMrow_divexact_inplace	976783
ZV_allequal	322735
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316797
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316797
ZV_snfclean	227087
ZpM_echelon	528398
addmulzii	520221320
addzi	240142767
affii2_or_copy_gc	48040077
allhnfmod	438393
bezout_step	820591
col_dup	2617647
col_mul	3087799
count	8161271
count2	421162
do_zero	0
findi	106486016
findi_normalize	106478885
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197676
hnf_i	61728
hnf_invimage	547536
hnf_invscale	275362
hnf_solve	461162
hnfadd	0
hnfadd_i	92571
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227402
hnflll	7
hnfmerge_get_1	816140
hnfmod	14
hnfmodid	438379
hnfperm	14
hnfspec	0
hnfspec_i	134830
hnfswap	8511211
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4632719
negcmpii	602149
normalize_as_RgX	364
optimal_D	5185849
p_mat	0
reduce1	967385
reduce2	53220769
remove_0cols	335721
reverse_rows	465849
smith	385
smithall	35
smithclean	693
snf_group	1029815
snf_pile	1071957
snf_pile1	48
snfrank	154
subzi	6480175
trivsmith	0
update	771962
zlm_echelon	4803144
zv_snf_rank	0

Generated by: LCOV version 1.16