[sdcc-devel] [ sdcc-Bugs-730366 ] Constants exeeding 32 bits

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Bugs item #730366, was opened at 2003-04-30 21:09
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Category: C-Front End
Group: None
Status: Open
Resolution: None
Priority: 2
Submitted By: Bernhard Held (bernhardheld)
Assigned to: Nobody/Anonymous (nobody)
Summary: Constants exeeding 32 bits

Initial Comment:
float.c from the regression tests contained a constant 
 
float f = 0x100000000; // 33 bits! 
 
constVal() in SDCCval.c uses sscanf("%lx", ) to convert the 
value. On 32 bit platforms 0xffffffff is returned by sscanf() 
without any error indication. 
 
On 64 bit alpha however the constant fits in "long sval", sscanf() 
returns the correct value. Later 0 is assigned to v_ulong, which 
is perfectly correct. 
 
How can we fix this problem? Do we need to rewrite sscanf(), 
which throws an error, if the value exeeds 32 bits? 
 

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