Type casts

The following function are available to cast a TSF expression into another type :

  $\blacktriangleright$ TOVALUE(n)

 
The function   casts the content of n into an integer, a real or a string:

• if n is an integer, a real or a string then returns n.
• if n is an AST of variant "int_cst" (i.e. an integer constant) then returns the integer value of n.
• if n is an AST of variant "real_cst" (i.e. a simple precision constant) then returns a string that contains the value of n. (See TOREAL to obtain a real value)
• if n is an AST of variant "double_cst" (i.e. a double precision constant) then returns a string that contains the value of n. (See TOREAL to obtain a real value)
• if n is an AST of variant "fstring_cst" then returns a string that contains the value of n.
• if n is an AST of variant "name" then returns a string that contains the Fortran symbol associated to n.
• else returns FALSE

  $\blacktriangleright$ TOINT(n)

 
The function   casts the content of n into an integer value. (see TOVALUE for more details about AST cases)

  $\blacktriangleright$ TOREAL(n)

 
The function   casts the content of n into an real value. (see TOVALUE for more details about AST cases)

  $\blacktriangleright$ TOSTRING(n)

 
The function   casts the content of n into a string. (see TOVALUE for more details about AST cases)

  $\blacktriangleright$ TOTREE(n)

 
The function   casts the content of n into a AST.

• if n is an integer (resp. a real or a string) then return a node of variant "int_cst" (resp. "real_cst" or "fstring_cst").
• if n is an AST then return n.
• else return FALSE.