stringconvert.cpp File Reference

#include <iostream>
#include <string>
#include <stringconvert.h>

Include dependency graph for stringconvert.cpp:

Go to the source code of this file.

Functions

boolc isstringdigits (stringc &str)

Is the string digits only?

boolc isstringinteger (stringc &str)

Is the string an integer? Not testing the value so 7.0 is not regared as an integer.

boolc isstringzero_or_positive_real (stringc &str)

e.g.

boolc isstringreal (stringc &str)

Integers are a subset of the reals.

boolc isstringnegative (stringc &str)

Looks for negative sign and a real number.

Function Documentation

boolc isstringdigits ( stringc & str )

Is the string digits only?

Definition at line 10 of file stringconvert.cpp.

Referenced by isstringinteger(), isstringzero_or_positive_real(), and misclib_testcode::stringconverttest::unittest01().

00011 {
00012   if (str.empty())
00013     return false;
00014 
00015   for (size_t i=0; i<str.length(); ++i)
00016   {
00017 //cout << i << ":" << str[i] << "  " << isdigit(str[i]) << endl;
00018     if (isdigit(str[i])==false)
00019       return false;
00020   }
00021 
00022   return true;
00023 }

boolc isstringinteger ( stringc & str )

Is the string an integer? Not testing the value so 7.0 is not regared as an integer.

Definition at line 25 of file stringconvert.cpp.

References isstringdigits(), and isstringinteger().

Referenced by isstringinteger(), and misclib_testcode::stringconverttest::unittest01().

00026 {
00027   if (str.empty())
00028     return false;
00029 
00030   if (str[0]=='-')
00031     return isstringinteger(str.substr(1));
00032 
00033   return isstringdigits(str);
00034 }

boolc isstringnegative ( stringc & str )

Looks for negative sign and a real number.

Definition at line 76 of file stringconvert.cpp.

References isstringreal().

Referenced by misclib_testcode::stringconverttest::unittest01().

00077 {
00078   if (str.empty())
00079     return false;
00080 
00081   if (str[0] != '-')
00082     return false;
00083 
00084   return isstringreal(str);
00085 }

boolc isstringreal ( stringc & str )

Integers are a subset of the reals.

Definition at line 65 of file stringconvert.cpp.

References isstringzero_or_positive_real().

Referenced by isstringnegative(), and misclib_testcode::stringconverttest::unittest01().

00066 {
00067   if (str.empty())
00068     return false;
00069 
00070   if (str[0]=='-')
00071     return isstringzero_or_positive_real(str.substr(1));
00072 
00073   return isstringzero_or_positive_real(str);
00074 }

boolc isstringzero_or_positive_real ( stringc & str )

e.g.

float or double >= zero.

Definition at line 36 of file stringconvert.cpp.

References isstringdigits().

Referenced by isstringreal().

00037 {
00038   if (str.empty())
00039     return false;
00040 
00041   if (str[0]=='.')
00042     return isstringdigits(str.substr(1));
00043 
00044   size_t k;
00045   uint kcount=0;
00046   for (size_t i=0; i<str.length(); ++i)
00047   {
00048     if (str[i]=='.')
00049     {
00050       k=i;
00051       ++kcount;
00052       continue;
00053     }
00054 
00055     if (isdigit(str[i])==false)
00056       return false;
00057   }
00058 
00059   if (kcount>1)
00060     return false;
00061 
00062   return true;
00063 }


Functions
boolc	isstringdigits (stringc &str)
	Is the string digits only?
boolc	isstringinteger (stringc &str)
	Is the string an integer? Not testing the value so 7.0 is not regared as an integer.
boolc	isstringzero_or_positive_real (stringc &str)
	e.g.
boolc	isstringreal (stringc &str)
	Integers are a subset of the reals.
boolc	isstringnegative (stringc &str)
	Looks for negative sign and a real number.