Use memset to initialize floats and doubles to 0.0
Description
Specify whether to generate code that explicitly initializes floating-point data to 0.0.
Category: Optimization
Settings
Default: On (GUI), 'off'
(command line)
On Uses
memsetto clear internal storage for floating-point data to integer bit pattern 0 (all bits 0), regardless of type. If your compiler and target CPU both represent floating-point zero with the integer bit pattern0, use this parameter to gain execution and ROM efficiency.This parameter requires that you turn on the configuration parameter Memcpy threshold to enable the memset functionality. Check that the value of the threshold is set high enough.
OffGenerates code to explicitly initialize storage for data of types
floatanddoubleto 0.0. The resulting code is slightly less efficient than code generated when you select the option.
Dependency
This parameter requires a Simulink® Coder™ license.
Command-Line Information
Parameter:
InitFltsAndDblsToZero |
Value:
'on' | 'off' |
Default:
'off' |
Note
The command-line values are reverse of the settings values. Therefore,
'on' in the command line corresponds to the description
of “Off” in the settings section, and 'off' in
the command line corresponds to the description of “On” in the
settings section.
Recommended Settings
| Application | Setting |
|---|---|
| Debugging | No impact |
| Traceability | No impact |
| Efficiency | On (GUI), 'off' (command line) (execution,
ROM), No impact
(RAM) |
| Safety precaution | No impact |