new 和 malloc 申请内存失败的区别处理

// malloc 的写法
char* buffer = (char*)malloc(1024);
if(buffer) {
printf("malloc success!\r\n");
}
free(buffer);

// new的写法
try {
char* buffer = new char[1024];
}
catch(...) {
printf("operator new error!\r\n");
}
delete []buffer;