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// Copyright 2008 Nanorex, Inc. See LICENSE file for details.
#include "Nanorex/Interface/NXNumbers.h"
namespace Nanorex {
/* FUNCTION: ToReal */
/** Returns a NXReal constructed from the given string. */
NXReal NXRealUtils::ToReal(const char* realChars) {
return atof(realChars);
}
/**
Returns a real constructed from the given realChars and scaleString.
The scaleString is one of:
"Y" (10<sup>24</sup>),
"Z" (10<sup>21</sup>),
"E" (10<sup>18</sup>),
"P" (10<sup>15</sup>),
"T" (10<sup>12</sup>),
"G" (10<sup>9</sup>),
"M" (10<sup>6</sup>),
"k" (10<sup>3</sup>),
"h" (10<sup>2</sup>),
"da" (10<sup>1</sup>),
"d" (10<sup>-1</sup>),
"c" (10<sup>-2</sup>),
"m" (10<sup>-3</sup>),
"u" (10<sup>-6</sup>),
"n" (10<sup>-9</sup>),
"A" (10<sup>-10</sup>),
"p" (10<sup>-12</sup>),
"f" (10<sup>-15</sup>),
"a" (10<sup>-18</sup>),
"z" (10<sup>-21</sup>), or
"y" (10<sup>-24</sup>)
*/
NXReal NXRealUtils::ToReal(const char* realChars, char* scaleString) {
NXReal result = pow(10, ScaleStringToEnum(scaleString));
result *= atof(realChars);
return result;
}
/* FUNCTION: ToChar */
/**
* Puts a string representing the given NXReal with the given precision into the
* given buffer. Make sure your buffer is large enough to handle the resulting
* string.
*/
void NXRealUtils::ToChar(const NXReal& number, char* charBuffer,
int precision) {
sprintf(charBuffer, "%.*g", precision, number);
}
/* FUNCTION: ScaleStringToEnum */
/** Returns the scale for the given string. */
NXRealUtils::Scale NXRealUtils::ScaleStringToEnum(const char* scaleString) {
if (strcmp(scaleString, "Y") == 0) return YOTTA;
else if (strcmp(scaleString, "Z") == 0) return ZETTA;
else if (strcmp(scaleString, "E") == 0) return EXA;
else if (strcmp(scaleString, "P") == 0) return PETA;
else if (strcmp(scaleString, "T") == 0) return TERA;
else if (strcmp(scaleString, "G") == 0) return GIGA;
else if (strcmp(scaleString, "M") == 0) return MEGA;
else if (strcmp(scaleString, "k") == 0) return KILO;
else if (strcmp(scaleString, "h") == 0) return HECTO;
else if (strcmp(scaleString, "da") == 0) return DECA;
else if (strcmp(scaleString, "d") == 0) return DECI;
else if (strcmp(scaleString, "c") == 0) return CENTI;
else if (strcmp(scaleString, "m") == 0) return MILLI;
else if (strcmp(scaleString, "u") == 0) return MICRO;
else if (strcmp(scaleString, "n") == 0) return NANO;
else if (strcmp(scaleString, "p") == 0) return PICO;
else if (strcmp(scaleString, "f") == 0) return FEMTO;
else if (strcmp(scaleString, "a") == 0) return ATTO;
else if (strcmp(scaleString, "z") == 0) return ZEPTO;
else if (strcmp(scaleString, "y") == 0) return YOCTO;
else if (strcmp(scaleString, "A") == 0) return ANGSTROM;
else return NONE;
}
} // Nanorex::
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