| Copyright © 2007-2010 ARM. All rights reserved. | ARM DUI 0348C |
| Non-Confidential | ID101213 |
 PDF version | |
| Home > Compiler-specific Features > Keywords and operators > __softfp |
| |||
| Home > Compiler-specific Features > Keywords and operators > __softfp | |||
The __softfp keyword asserts that a function
uses software floating-point linkage.
__softfp is a function qualifier. It affects
the type of the function.
This keyword has the #pragma equivalent #pragma
__softfp_linkage.
Calls to the function pass floating-point arguments in integer registers. If the result is a floating-point value, the value is returned in integer registers. This duplicates the behavior of compilation targeting software floating-point.
This keyword enables the same library to be used by sources compiled to use hardware and software floating-point.
In C++, if a virtual function qualified with the __softfp keyword
is to be overridden, the overriding function must also be declared
as __softfp. If the functions do not match, the compiler
generates an error.
Floating-point computations and linkage in the Compiler User Guide.
| Copyright © 2007-2010 ARM. All rights reserved. | ARM DUI 0348C |
| Non-Confidential | ID101213 |
| PDF version | |
| Home > Compiler-specific Features > Keywords and operators > __softfp |