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Full Discussion: C++ Get text and numeric value from a string
Top Forums Programming C++ Get text and numeric value from a string Post 302897445 by kristinu on Monday 14th of April 2014 07:38:44 AM
Old 04-14-2014
DONE

Code:
#include <string>
#include <sstream>
#include <iostream>
#include <cctype>

int 
main
  (
    int argc, 
    char *argv[]
  )

{

  std::string str("row12");
  std::string temp;
  int num = 0;
    
  // Extracts the first numeric block. Locates the first number
  // in the string and extracts it.

  for (unsigned int k=0; k < str.size(); k++)
    {
      if (isdigit(str[k]))
        {
          for (unsigned int i = k; i < str.size(); i++)
            {
              temp += str[i];               
            }
          break;
        }    
    }
    
  std::istringstream stream(temp);
  stream >> num;
    
  std::cout << num << std::endl;    
}

 

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LEARN ABOUT FREEBSD

dwarf_get_ord_name

DWARF_GET_AT_NAME(3)					   BSD Library Functions Manual 				      DWARF_GET_AT_NAME(3)

NAME

     dwarf_get_ACCESS_name, dwarf_get_AT_name, dwarf_get_ATE_name, dwarf_get_CC_name, dwarf_get_CFA_name, dwarf_get_CHILDREN_name,
     dwarf_get_DS_name, dwarf_get_DSC_name, dwarf_get_EH_name, dwarf_get_END_name, dwarf_get_FORM_name, dwarf_get_ID_name, dwarf_get_INL_name,
     dwarf_get_LANG_name, dwarf_get_LNE_name, dwarf_get_LNS_name, dwarf_get_MACINFO_name, dwarf_get_OP_name, dwarf_get_ORD_name,
     dwarf_get_TAG_name, dwarf_get_VIRTUALITY_name, dwarf_get_VIS_name -- retrieve the symbolic names of DWARF constants

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     int
     dwarf_get_ACCESS_name(unsigned val, char **str);

     int
     dwarf_get_AT_name(unsigned val, char **str);

     int
     dwarf_get_ATE_name(unsigned val, char **str);

     int
     dwarf_get_CC_name(unsigned val, char **str);

     int
     dwarf_get_CFA_name(unsigned val, char **str);

     int
     dwarf_get_CHILDREN_name(unsigned val, char **str);

     int
     dwarf_get_DS_name(unsigned val, char **str);

     int
     dwarf_get_DSC_name(unsigned val, char **str);

     int
     dwarf_get_EH_name(unsigned val, char **str);

     int
     dwarf_get_END_name(unsigned val, char **str);

     int
     dwarf_get_FORM_name(unsigned val, char **str);

     int
     dwarf_get_ID_name(unsigned val, char **str);

     int
     dwarf_get_INL_name(unsigned val, char **str);

     int
     dwarf_get_LANG_name(unsigned val, char **str);

     int
     dwarf_get_LNE_name(unsigned val, char **str);

     int
     dwarf_get_LNS_name(unsigned val, char **str);

     int
     dwarf_get_MACINFO_name(unsigned val, char **str);

     int
     dwarf_get_OP_name(unsigned val, char **str);

     int
     dwarf_get_ORD_name(unsigned val, char **str);

     int
     dwarf_get_TAG_name(unsigned val, char **str);

     int
     dwarf_get_VIRTUALITY_name(unsigned val, char **str);

     int
     dwarf_get_VIS_name(unsigned val, char **str);

DESCRIPTION

     These functions return the symbolic name of a numeric DWARF constant.

     Argument val specifies the numeric value whose symbolic name is desired.

     Argument str should point to a location which will hold the returned NUL-terminated string containing the symbolic name of the specified
     value.

     The list of functions and the DWARF constants that they accept are:

     dwarf_get_ACCESS_name()	  DW_ACCESS_* constants.
     dwarf_get_AT_name()	  DW_AT_* constants.
     dwarf_get_ATE_name()	  DW_ATE_* constants.
     dwarf_get_CC_name()	  DW_CC_* constants.
     dwarf_get_CFA_name()	  DW_CFA_* constants.
     dwarf_get_CHILDREN_name()	  DW_CHILDREN_* constants.
     dwarf_get_DS_name()	  DW_DS_* constants.
     dwarf_get_DSC_name()	  DW_DSC_* constants.
     dwarf_get_EH_name()	  DW_EH_PE_* constants.
     dwarf_get_END_name()	  DW_END_* constants.
     dwarf_get_FORM_name()	  DW_FORM_* constants.
     dwarf_get_ID_name()	  DW_ID_* constants.
     dwarf_get_INL_name()	  DW_INL_* constants.
     dwarf_get_LANG_name()	  DW_LANG_* constants.
     dwarf_get_LNE_name()	  DW_LNE_* constants.
     dwarf_get_LNS_name()	  DW_LNS_* constants.
     dwarf_get_MACINFO_name()	  DW_MACINFO_* constants.
     dwarf_get_OP_name()	  DW_OP_* constants.
     dwarf_get_ORD_name()	  DW_ORD_* constants.
     dwarf_get_TAG_name()	  DW_TAG_* constants.
     dwarf_get_VIRTUALITY_name()  DW_VIRTUALITY_* constants.
     dwarf_get_VIS_name()	  DW_VIS_* constants.

RETURN VALUES

     These functions return DW_DLV_OK on success. If the DWARF constant denoted by argument val is not recognized, these function return
     DW_DLV_NO_ENTRY.

SEE ALSO

     dwarf(3)

BSD
								  April 22, 2011							       BSD
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