#pragma softfp_linkage, #pragma no_softfp_linkage
These pragmas control software floating-point linkage.
#pragma softfp_linkage asserts that all function declarations up to the next #pragma no_softfp_linkage describe functions that use software floating-point linkage.
These pragmas have the keyword equivalent __softfp.
These pragmas can be useful when applied to an entire interface specification, located in the header file, without altering that file.
The default is #pragma no_softfp_linkage.