Topic       : C-Language Documentation
Author      : John Kormylo
Version     : C.HYP 1.0
Subject     : Documentation/C-Language
Nodes       : 233
Index Size  : 6362
HCP-Version : 3
Compiled on : Atari
@charset    : atarist
@lang       : en
@default    : 
@help       : Help
@options    : +g -i -s +x +z -t4
@width      : 75
View Ref-File[ Assignment Operators ]

... do two things:  First, they change the Lvalue.  Second, they
return this changed Lvalue for further operations (if any).
for example;  a = b = 0;  or  if((err = funct()) != 0)

= Set Lvalue equal to Rvalue.  Perform type conversion if necessary.
  Note: one can copy an entire structure (but not an array) using '='.

*=  Compute (Lvalue * Rvalue) and replace Lvalue.
/=  Compute (Lvalue / Rvalue) and replace Lvalue.
%=  Compute (Lvalue % Rvalue) and replace Lvalue.
+=  Compute (Lvalue + Rvalue) and replace Lvalue.
-=  Compute (Lvalue - Rvalue) and replace Lvalue.
&=  Compute (Lvalue & Rvalue) and replace Lvalue.
|=  Compute (Lvalue | Rvalue) and replace Lvalue.
^=  Compute (Lvalue ^ Rvalue) and replace Lvalue.
<<= Compute (Lvalue << Rvalue) and replace Lvalue.
>>= Compute (Lvalue >> Rvalue) and replace Lvalue.

See also Unary Operators ++ and --