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
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	25171
ZM_hnfall	29407
hnf_i	61734
ZM_snfall	64189
ZM_hnf	89636
hnfadd_i	92697
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134579
ZM_hnfmod	162552
hnf_divscale	197475
ZV_snfclean	227093
ZM_rowrankprofile	227275
hnffinal	227275
ZM_hnflll	232805
hnf_invscale	275320
ZV_snfall	316797
ZV_snf_group	316798
ZV_allequal	322719
remove_0cols	335875
count2	421178
hnfmodid	438103
allhnfmod	438116
hnf_solve	461159
reverse_rows	465595
ZpM_echelon	528158
hnf_invimage	547528
negcmpii	602162
ZM_snf_group	712667
ZM_hnfall_i	752682
update	771766
ZM_snfall_i	796330
hnfmerge_get_1	815983
bezout_step	820407
reduce1	967385
ZMrow_divexact_inplace	976443
ZM_snfclean	1029520
snf_group	1029524
snf_pile	1071667
ZM_snf_no_divide	1235307
ZM_redpart	1551809
Minus	2055556
col_dup	2614856
col_mul	3087009
ZM_hnfmodprime	3364215
FpM_echelon	3364224
FpM_hnfend	3364365
ZM_reduce	4482694
ZM_hnfmodid	4537291
must_swap	4621295
zlm_echelon	4801604
ZM_hnfmodall	5139796
optimal_D	5188997
ZM_hnfmodall_i	5190812
FpV_Fp_mul_part_ip	5411370
subzi	6472049
count	8160933
hnfswap	8501725
ZC_lincomb1z	21876348
ZC_lincomb1z_i	21883291
FpV_red_part_ipvec	37720949
ZC_elem	41228228
affii2_or_copy_gc	47982740
reduce2	53178505
findi_normalize	106363386
findi	106376365
addzi	239994064
addmulzii	519637914

Generated by: LCOV version 1.16