10 Declarations [dcl.dcl]

10.4 The asm declaration [dcl.asm]

1
#
An asm declaration has the form
asm-definition:
	attribute-specifier-seq asm ( string-literal ) ;
The asm declaration is conditionally-supported; its meaning is implementation-defined.
The optional attribute-specifier-seq in an asm-definition appertains to the asm declaration.
[ Note
:
Typically it is used to pass information through the implementation to an assembler.
— end note
 ]