Article: Q29557
Product(s): Microsoft C Compiler
Version(s): winnt:
Operating System(s):
Keyword(s): kbCRT kbVC
Last Modified: 22-JUL-2001
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The information in this article applies to:
- The C Run-Time (CRT), included with:
- Microsoft C for MS-DOS, versions 5.0, 5.1, 6.0, 6.0a, 6.0ax
- Microsoft C for OS/2, versions 5.1, 6.0, 6.0a
- Microsoft C/C++ for MS-DOS, version 7.0
- Microsoft Visual C++, versions 1.0, 1.50
- *EDITOR Please do not choose this product*Microsoft Visual C++ 32-bit Edition* use 241, 265, 225, versions 1.0, 2.0, 4.0
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SUMMARY
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By default, the printf() function displays a floating-point number to six digits
of precision. This default also holds for double precision numbers.
To display additional digits of precision, specify a value for the precision
field in the printf() format specification, as follows:
%[<flags>][<width>][.<precision>]<type>
MORE INFORMATION
================
The code example below demonstrates documented printf() behavior that may appear
to be a problem with the function.
#include <stdio.h>
main()
{
double d = 1.2345678912;
printf("%e\n", d);
printf("%le\n", d);
}
This code example produces the following output:
1.234568e+000
1.234568e+000
To display the value d to its full precision, modify the code example to use the
following statement:
printf("%.15le", d);
Additional query words: kbinf 1.00 1.50 2.00 5.10 6.00 6.00a 6.00ax 7.00
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Keywords : kbCRT kbVC
Technology : kbVCsearch kbAudDeveloper kbCRT
Version : winnt:
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