Diff: core/utils.h

Revision:

26:b4421d1ee57a

Parent:

23:61af0317e404

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/utils.h	Thu Jul 05 20:15:37 2018 +0000
@@ -0,0 +1,66 @@
+#ifndef UTILS_H_
+#define UTILS_H_
+#include <string>
+#include "IO.h"
+
+inline bool isWhitespace(const char& ch) {
+    return  (ch == ' ') ||
+            (ch == '\t') ||
+            (ch == '\r') ||
+            (ch == '\n') ||
+            (ch == '\v') ||
+            (ch == '\f');
+}
+
+inline us_timestamp_t ms_to_us(const uint16_t& ms)
+{
+    return ((us_timestamp_t)ms)*1000;
+}
+
+inline std::string uint64_to_str(uint64_t value, const uint16_t& base=10)
+{
+      std::string result;
+
+      do {
+            char c = value % base;
+            value /= base;
+        
+            if (c < 10)
+              c +='0';
+            else
+              c += 'A' - 10;
+            result = c + result;
+      } while (value);
+      return result;
+}
+
+template <typename V>
+V parseUnsignedFromSerial(const V& defaultvalue)
+{
+  V value = 0;
+  while(true) {
+    
+    int readChar = IO::getc();
+
+    // only accepts digits
+    if ((readChar >= 48) && (readChar <= 57)) {
+      value = value * 10 + (readChar - 48);
+      // continues parsing
+      
+    } else if ( isWhitespace((char)readChar) || (readChar == 59) ) {
+      // space or ';'
+      // ends parsing
+      break;
+      
+    } else {
+      IO::error("%c",(char)readChar);
+      // set value back to original
+      value = defaultvalue;
+      break;
+      
+    }
+  }
+  
+  return value;
+}
+#endif
\ No newline at end of file