src/include/helpers.h

   1 #pragma once
   2
   3 #include "targets.h"
   4
   5 #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
   6
   7 #ifndef UNUSED
   8 #define UNUSED(x) (void)(x)
   9 #endif
  10
  11 class NullStream : public Stream
  12 {
  13   public:
  14     int available() override
  15     {
  16         return 0;
  17     }
  18
  19     void flush() override
  20     {
  21     }
  22
  23     int peek() override
  24     {
  25         return -1;
  26     }
  27
  28     int read() override
  29     {
  30         return -1;
  31     }
  32
  33     size_t write(uint8_t u_Data) override
  34     {
  35         UNUSED(u_Data);
  36         return 0x01;
  37     }
  38
  39     size_t write(const uint8_t *buffer, size_t size) override
  40     {
  41         UNUSED(buffer);
  42         return size;
  43     }
  44 };
  45
  46 #if defined(PLATFORM_STM32)
  47 inline const char *strchrnul(const char *pos, const char find)
  48 {
  49     const char *semi = strchr(pos, find);
  50     if (semi == nullptr)
  51     {
  52         semi = pos + strlen(pos);
  53     }
  54     return semi;
  55 }
  56 #endif
  57