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C:/temp/src/j2k/Deprecated/old_18mar_diff/Str14dec/Str-fn.hpp

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#ifndef __J2K__JString_Function_HPP__
#define __J2K__JString_Function_HPP__

#include <stdio.h>
#include <string.h>
#include <time.h>
#include <ctype.h>

#if defined(__sun) || defined(__SUN__) || defined( linux )

  // To be optimized further ?!  no strlen() ?
  char* strrev( char* s )
  {
    if ( s == NULL  ||  *s == '\0' ) return NULL;

    register ULONG i = 0;
    register ULONG j = strlen( s ) - 1;
    j >> 1;                   // Divide by 2

    register char c = 0;
    while( i < j ) 
    {
      c    = s[i];
      s[i] = s[j];
      s[j] = c;
      i++;
      j--;
    }

    return s;
  }

  char* strupr( char* s ) 
  {
    if ( s == NULL  ||  *s == '\0' ) return NULL;
  
    ULONG i = 0;
    while( s[i] != '\0' ) {
       s[i] = (char)toupper( (int)s[i] );
       i++;
    }
    return s;
  }

  char* strlwr( char* s ) {
    if ( s == NULL  ||  *s == '\0' ) return NULL;

    ULONG i = 0;
    while( s[i] != '\0' ) {
       s[i] = (char)tolower( (int)s[i] );
       i++;
    }

    return s;
  }

  char* _strdate( const char* s ) {
     printf("_strdate() function doesn't exist.");
     abort();
  }

  char* _strtime( const char* s ) {
    printf( "\n\n[ BETA _strtime() ]\n\n" );
    time_t tloc;
    time( &tloc );
    return asctime( localtime( &tloc ) );
  }

  char* strnset( const char* s, char c, size_t sz ) {
     printf("strnset() function doesn't exist.");
     abort();
  }

#endif

#endif

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