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 30660-09c6d0ed2e) Lines: 1603 1779 90.1 % Date: 2026-02-01 09:23:44 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364224
FpM_hnfend	3364365
FpV_Fp_mul_part_ip	5411370
FpV_red_part_ipvec	37720949
Minus	2055556
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41228228
ZC_lincomb1z	21876348
ZC_lincomb1z_i	21883291
ZM_hnf	89636
ZM_hnf_knapsack	238
ZM_hnfall	29407
ZM_hnfall_i	752682
ZM_hnfcenter	25171
ZM_hnflll	232805
ZM_hnfmod	162552
ZM_hnfmodall	5139796
ZM_hnfmodall_i	5190812
ZM_hnfmodid	4537291
ZM_hnfmodprime	3364215
ZM_hnfperm	385
ZM_redpart	1551809
ZM_reduce	4482694
ZM_rowrankprofile	227275
ZM_snf	15925
ZM_snf_group	712667
ZM_snf_no_divide	1235307
ZM_snfall	64189
ZM_snfall_i	796330
ZM_snfclean	1029520
ZMrow_divexact_inplace	976443
ZV_allequal	322719
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316798
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316797
ZV_snfclean	227093
ZpM_echelon	528158
addmulzii	519637914
addzi	239994064
affii2_or_copy_gc	47982740
allhnfmod	438116
bezout_step	820407
col_dup	2614856
col_mul	3087009
count	8160933
count2	421178
do_zero	0
findi	106376365
findi_normalize	106363386
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197475
hnf_i	61734
hnf_invimage	547528
hnf_invscale	275320
hnf_solve	461159
hnfadd	0
hnfadd_i	92697
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227275
hnflll	7
hnfmerge_get_1	815983
hnfmod	14
hnfmodid	438103
hnfperm	14
hnfspec	0
hnfspec_i	134579
hnfswap	8501725
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4621295
negcmpii	602162
normalize_as_RgX	364
optimal_D	5188997
p_mat	0
reduce1	967385
reduce2	53178505
remove_0cols	335875
reverse_rows	465595
smith	385
smithall	35
smithclean	693
snf_group	1029524
snf_pile	1071667
snf_pile1	48
snfrank	154
subzi	6472049
trivsmith	0
update	771766
zlm_echelon	4801604
zv_snf_rank	0

Generated by: LCOV version 1.16