WhiteSpaces and Blank Lines

This topic has 1 reply, 2 voices, and was last updated 15 years, 1 month ago by GWILouisaxwzkla.

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- October 4, 2009 at 4:02 am #2233
  GarnetHuynh
  Participant
  Hi,
  Need help for a ‘C’ Code to ignore WhiteSpaces (Carriage Return, Enter, etc) and Blank Lines while reading an input file.
  Thanks,
  Marconi.
- October 5, 2009 at 5:19 pm #3615
  GWILouisaxwzkla
  Participant
  I’m not sure what compiler your using but the include file ctype.h has a macro called isspace() that can be called on characters , like:
  <br /> char ch = cin.get()<br /> if ( isspace ( ch ) )<br /> {<br /> cout << "read a space" ;<br /> }<br />
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  <br />
  char ch = cin.get()<br />
  if ( isspace ( ch ) )<br />
  {<br />
  cout << "read a space" ;<br />
  }<br />
  
  The definition is listed as
  The isspace() function returns non-zero if its argument is some sort of space (i.e. single space, tab, vertical tab, form feed, carriage return, or newline). Otherwise, zero is returned.
  from http://www.cppreference.com/wiki/c/string/isspace
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