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 30370-b9c4b6d044) Lines: 1602 1778 90.1 % Date: 2025-07-05 09:22:59 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	15869
ZM_hnfcenter	25203
ZM_hnfall	29147
hnf_i	61671
ZM_snfall	64189
ZM_hnf	89341
hnfadd_i	92374
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134790
ZM_hnfmod	162503
hnf_divscale	197398
ZV_snfclean	227088
ZM_rowrankprofile	227163
hnffinal	227164
ZM_hnflll	232673
hnf_invscale	275321
ZV_snf_group	316767
ZV_snfall	316767
ZV_allequal	322716
remove_0cols	335538
count2	420810
hnfmodid	438181
allhnfmod	438195
hnf_solve	461144
reverse_rows	465328
ZpM_echelon	528257
hnf_invimage	547281
negcmpii	602121
ZM_snf_group	712832
ZM_hnfall_i	752413
update	771716
ZM_snfall_i	796437
hnfmerge_get_1	816125
bezout_step	820332
reduce1	967385
ZMrow_divexact_inplace	976586
ZM_snfclean	1029676
snf_group	1029679
snf_pile	1071751
ZM_snf_no_divide	1235218
ZM_redpart	1551675
Minus	2056668
col_dup	2615008
col_mul	3086822
FpM_echelon	3361405
ZM_hnfmodprime	3361413
FpM_hnfend	3361624
ZM_reduce	4470413
ZM_hnfmodid	4528926
must_swap	4629408
zlm_echelon	4797749
ZM_hnfmodall	5131445
optimal_D	5180763
ZM_hnfmodall_i	5182737
FpV_Fp_mul_part_ip	5407942
subzi	6455781
count	8103380
hnfswap	8492377
ZC_lincomb1z	21843122
ZC_lincomb1z_i	21850894
FpV_red_part_ipvec	37667291
ZC_elem	41172217
affii2_or_copy_gc	47781077
reduce2	52979520
findi_normalize	105998253
findi	106007133
addzi	239174797
addmulzii	517575865

Generated by: LCOV version 1.16