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 30530-11e908049b) Lines: 1602 1778 90.1 % Date: 2025-10-14 09:22:50 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3363977
FpM_hnfend	3364190
FpV_Fp_mul_part_ip	5411283
FpV_red_part_ipvec	37678797
Minus	2058929
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41179560
ZC_lincomb1z	21862755
ZC_lincomb1z_i	21872777
ZM_hnf	89376
ZM_hnf_knapsack	238
ZM_hnfall	29177
ZM_hnfall_i	752454
ZM_hnfcenter	25199
ZM_hnflll	232822
ZM_hnfmod	162582
ZM_hnfmodall	5133848
ZM_hnfmodall_i	5185111
ZM_hnfmodid	4531198
ZM_hnfmodprime	3363989
ZM_hnfperm	385
ZM_redpart	1551909
ZM_reduce	4470223
ZM_rowrankprofile	227293
ZM_snf	15925
ZM_snf_group	712878
ZM_snf_no_divide	1235333
ZM_snfall	64204
ZM_snfall_i	796555
ZM_snfclean	1029744
ZMrow_divexact_inplace	976642
ZV_allequal	322719
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316769
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316769
ZV_snfclean	227086
ZpM_echelon	528253
addmulzii	518075936
addzi	239454614
affii2_or_copy_gc	47838174
allhnfmod	438234
bezout_step	820424
col_dup	2616832
col_mul	3087077
count	8149277
count2	421286
do_zero	0
findi	106056327
findi_normalize	106047983
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197453
hnf_i	61704
hnf_invimage	547297
hnf_invscale	275336
hnf_solve	461162
hnfadd	0
hnfadd_i	92478
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227292
hnflll	7
hnfmerge_get_1	816133
hnfmod	14
hnfmodid	438220
hnfperm	14
hnfspec	0
hnfspec_i	134816
hnfswap	8500663
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4631285
negcmpii	602135
normalize_as_RgX	364
optimal_D	5183085
p_mat	0
reduce1	967385
reduce2	53012049
remove_0cols	335603
reverse_rows	465627
smith	385
smithall	35
smithclean	693
snf_group	1029747
snf_pile	1071856
snf_pile1	48
snfrank	154
subzi	6459836
trivsmith	0
update	771779
zlm_echelon	4801424
zv_snf_rank	0

Generated by: LCOV version 1.16