how do i read a file

how do i read a file

• Karl Seguin - MVP

  Moved to Smart Devices C++ forum.
  
  
  

• pjtaylor

  You read a file on a smartphone the same way you do it anyway. E.g.

  /* FREAD.C: This program opens a file named FREAD.OUT and
  * writes 25 characters to the file. It then tries to open
  * FREAD.OUT and read in 25 characters. If the attempt succeeds,
  * the program displays the number of actual items read.
  */

  #include <stdio.h>

  void main( void )
  {
  FILE *stream;
  char list[30];
  int i, numread, numwritten;

  /* Open file in text mode: */
  if( (stream = fopen( "fread.out", "w+t" )) != NULL )
  {
  for ( i = 0; i < 25; i++ )
  list = (char)('z' - i);
  /* Write 25 characters to stream */
  numwritten = fwrite( list, sizeof( char ), 25, stream );
  printf( "Wrote %d items\n", numwritten );
  fclose( stream );

  }
  else
  printf( "Problem opening the file\n" );

  if( (stream = fopen( "fread.out", "r+t" )) != NULL )
  {
  /* Attempt to read in 25 characters */
  numread = fread( list, sizeof( char ), 25, stream );
  printf( "Number of items read = %d\n", numread );
  printf( "Contents of buffer = %.25s\n", list );
  fclose( stream );
  }
  else
  printf( "File could not be opened\n" );
  }

  
  This example has been taken from MSDN Help:
  http://msdn2.microsoft.com/en-us/library/ms859637.aspx

  
  
• how do i read a file