suplibxx  1.3.9
str2d.cc
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24 
25 #include <errno.h>
26 #include <cstdlib>
27 
28 using namespace std;
29 
30 #include "str.h"
31 
44 double suplib::str2d( const char* txt ) throw( Exception ) {
45 
46  // Field is empty
47  if ( NULL == txt || '\0' == *txt )
48  throw Exception( "suplib::str2d( ) : Empty field" );
49 
50  char* ptr=NULL;
51 
52  double result = strtod( txt, &ptr );
53 
54  if ( ERANGE == errno )
55  throw Exception( "suplib::str2d( " + string( txt ) +
56  ") : Variable overflow" );
57 
58  if ( '\0' != *ptr )
59  throw Exception( "suplib::str2d( " + string( txt ) +
60  " ) Not a number, problem at `" + string( ptr ) + "'" );
61 
62  return result;
63 
64 }
double str2d(const char *txt)
convert string to double-precision number
Definition: str2d.cc:44