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 30563-682842a727) Lines: 1603 1779 90.1 % Date: 2025-11-29 09:23:24 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	25198
ZM_hnfall	29151
hnf_i	61728
ZM_snfall	64203
ZM_hnf	89374
hnfadd_i	92432
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134816
ZM_hnfmod	162582
hnf_divscale	197448
ZV_snfclean	227089
hnffinal	227247
ZM_rowrankprofile	227248
ZM_hnflll	232775
hnf_invscale	275336
ZV_snf_group	316797
ZV_snfall	316797
ZV_allequal	322717
remove_0cols	335602
count2	421291
hnfmodid	438219
allhnfmod	438233
hnf_solve	461145
reverse_rows	465541
ZpM_echelon	528373
hnf_invimage	547283
negcmpii	602154
ZM_snf_group	712892
ZM_hnfall_i	752436
update	771792
ZM_snfall_i	796567
hnfmerge_get_1	816144
bezout_step	820444
reduce1	967385
ZMrow_divexact_inplace	976627
ZM_snfclean	1029775
snf_group	1029775
snf_pile	1071896
ZM_snf_no_divide	1235346
ZM_redpart	1551904
Minus	2059289
col_dup	2616866
col_mul	3087103
FpM_echelon	3364051
ZM_hnfmodprime	3364063
FpM_hnfend	3364303
ZM_reduce	4476768
ZM_hnfmodid	4530911
must_swap	4633294
zlm_echelon	4801478
ZM_hnfmodall	5133495
optimal_D	5182739
ZM_hnfmodall_i	5184796
FpV_Fp_mul_part_ip	5411440
subzi	6461381
count	8149534
hnfswap	8503587
ZC_lincomb1z	21873875
ZC_lincomb1z_i	21880753
FpV_red_part_ipvec	37677477
ZC_elem	41185719
affii2_or_copy_gc	47850162
reduce2	53030872
findi_normalize	106085253
findi	106098193
addzi	239656944
addmulzii	518537926

Generated by: LCOV version 1.16