Use new(std::nothrow) to prevent crashes

[mrengineer7777]

Board

NA

Device Description

NA

Hardware Configuration

Arduino ESP32 Feather

Version

latest master (checkout manually)

IDE Name

PlatformIO

Operating System

Win11

Flash frequency

80Mhz

PSRAM enabled

no

Upload speed

115200

Description

I noticed in ESP8266 that they have changed their new calls to new(std::nothrow). This could prevent some crashes in our libraries.

See esp8266/Arduino@6925982

cbuf is one of the libraries that was fixed.

Sketch

#include "Arduino.h"
#include "cbuf.h"

void setup() {
    cbuf *p = new cbuf(128);
    p->resize(100);
}

void loop() {
}

Debug Message

Crash on low memory

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[mrengineer7777]

Draft PR opened. For the example cases corrected, it may make more sense to convert from new to malloc.

[mrengineer7777]

I have decided not to do this at this time.