First Commit

libraries/SdFat/extras/attic/PrintBasic.cpp

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+/**
+ * Copyright (c) 2011-2020 Bill Greiman
+ * This file is part of the SdFat library for SD memory cards.
+ *
+ * MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include "PrintBasic.h"
+#if ENABLE_ARDUINO_FEATURES == 0
+#include <math.h>
+
+size_t PrintBasic::print(long n, uint8_t base) {
+  if (n < 0 && base == 10) {
+    return print('-') + printNum(-n, base);
+  }
+  return printNum(n, base);
+}
+size_t PrintBasic::printNum(unsigned long n, uint8_t base) {
+  const uint8_t DIM = 8 * sizeof(long);
+  char buf[DIM];
+  char *str = &buf[DIM];
+
+  if (base < 2) return 0;
+
+  do {
+    char c = n % base;
+    n /= base;
+    *--str = c + (c < 10 ? '0' : 'A' - 10);
+  } while (n);
+  return write(str, &buf[DIM] - str);
+}
+
+size_t PrintBasic::printDouble(double n, uint8_t prec) {
+  // Max printable 32-bit floating point number. AVR uses 32-bit double.
+  const double maxfp = static_cast<double>(0XFFFFFF00UL);
+  size_t rtn = 0;
+
+  if (isnan(n)) {
+    return write("NaN");
+  }
+  if (n < 0) {
+    n = -n;
+    rtn += print('-');
+  }
+  if (isinf(n)) {
+    return rtn + write("Inf");
+  }
+  if (n > maxfp) {
+    return rtn + write("Ovf");
+  }
+
+  double round = 0.5;
+  for (uint8_t i = 0; i < prec; ++i) {
+    round *= 0.1;
+  }
+
+  n += round;
+
+  uint32_t whole = (uint32_t)n;
+  rtn += print(whole);
+
+  if (prec) {
+    rtn += print('.');
+    double fraction = n - static_cast<double>(whole);
+    for (uint8_t i = 0; i < prec; i++) {
+      fraction *= 10.0;
+      uint8_t digit = fraction;
+      rtn += print(digit);
+      fraction -= digit;
+    }
+  }
+  return rtn;
+}
+#endif  //  ENABLE_ARDUINO_FEATURES == 0