1 /* Decodes a double value into a float variable. 2 * Used to read double values with AVR code, which doesn't support double directly. 3 */ 4 5 #include <stdio.h> 6 #include <pb_decode.h> 7 #include "double_conversion.h" 8 #include "doubleproto.pb.h" 9 10 int main() 11 { 12 uint8_t buffer[32]; 13 size_t count = fread(buffer, 1, sizeof(buffer), stdin); 14 pb_istream_t stream = pb_istream_from_buffer(buffer, count); 15 16 AVRDoubleMessage message; 17 pb_decode(&stream, AVRDoubleMessage_fields, &message); 18 19 float v1 = double_to_float(message.field1); 20 float v2 = double_to_float(message.field2); 21 22 printf("Values: %f %f\n", v1, v2); 23 24 if (v1 == 1234.5678f && 25 v2 == 0.00001f) 26 { 27 return 0; 28 } 29 else 30 { 31 return 1; 32 } 33 } 34
