Q43809: Changes in scanf() and printf() for Long Types in C

Article: Q43809
Product(s): See article
Version(s): 5.10   | 5.10
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | S_QuickC | mspl13_c
Last Modified: 19-SEP-1989

As of Version 5.10 of the Microsoft C Optimizing Compiler and Version
1.00 of the QuickC compiler, the scanf() and printf() functions no
longer support the uppercase D, O, and I type characters, which
represented long-integer fields.

Current versions of Microsoft C compilers precede the type characters
in the format portion of the printf() and scanf() functions with an
"l"  (lowercase letter "l") to specify long-type fields.

The uppercase "X" format specifier also has been changed; it now
specifies that uppercase letters are to be used when displaying
hexadecimal numbers in a printf() statement.

The following code fragment reads an integer into a variable and then
displays the value of the variable:

int i;
scanf( "%d", &i );
printf( "%d", i );

The following code fragment accepts and displays the value of a long
integer variable:

long i;
scanf( "%ld", &i );
printf( "%ld", i );

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