Changeset 970 for cpp/frams/util/sstring-simple.cpp
- Timestamp:
- 06/30/20 00:34:59 (4 years ago)
- File:
-
- 1 edited
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cpp/frams/util/sstring-simple.cpp
r955 r970 3 3 #include "extvalue.h" 4 4 #include <assert.h> 5 #ifdef USE_PRINTFLOAT_DRAGON4 6 #include <PrintFloat/PrintFloat.h> 7 #endif 5 #include <common/nonstd_math.h> 6 8 7 9 8 void SString::initEmpty() … … 227 226 SString SString::valueOf(double d) 228 227 { 229 #ifdef USE_PRINTFLOAT_DRAGON4230 228 SString tmp; 231 229 char* here = tmp.directWrite(30); 232 tmp.endWrite(PrintFloat64(here, 30, d, 233 ((d < -1e17) || (d > 1e17) || ((d < 1e-4) && (d > -1e-4) && (d != 0.0))) 234 ? PrintFloatFormat_Scientific : PrintFloatFormat_Positional, 235 -1));//http://www.ryanjuckett.com/programming/printing-floating-point-numbers/ 236 #else 237 SString tmp = SString::sprintf("%.17g", d); //https://stackoverflow.com/questions/16839658/printf-width-specifier-to-maintain-precision-of-floating-point-value 238 #endif 230 tmp.endWrite(doubleToString(d, -1, here, 30)); 239 231 if ((!strchr(tmp.c_str(), '.')) && (!strchr(tmp.c_str(), 'e'))) tmp += ".0"; 240 232 return tmp;
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