SW500010 Microchip Technology, SW500010 Datasheet - Page 385

• Manufacturer Part Number: SW500010
• Description: HI-TECH C PRO FOR PIC10/12/16
• Manufacturer: Microchip Technology
• Type: Compilerr
• Series: PIC10/12/16r

Specifications of SW500010

• Supported Families: PIC10, PIC12, PIC16
• Core Architecture: PIC
• Software Edition: Professional
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC10/12/16
• Tool Type: Compiler
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: PIC10, PIC12, PIC14, PIC16, PIC16E
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 019P; 778-1006; 778-1006

Error and Warning Messages
(350) unused * "*" (from line *)
The indicated object was never used in the function or module being compiled. Either this object is
redundant, or the code that was meant to use it was excluded from compilation or misspelt the name
of the object. Note that the symbols rcsid and sccsid are never reported as being unused.
(352) float parameter coerced to double
Where a non-prototyped function has a parameter declared as float, the compiler converts this into
a double float. This is because the default C type conversion conventions provide that when a
floating point number is passed to a non-prototyped function, it will be converted to double. It is
important that the function declaration be consistent with this convention, e.g.:
(353) sizeof external array "*" is zero
The size of an external array evaluates to zero. This is probably due to the array not having an
explicit dimension in the extern declaration.
(354) possible pointer truncation
A pointer qualified far has been assigned to a default pointer or a pointer qualified near, or a default
pointer has been assigned to a pointer qualified near. This may result in truncation of the pointer and
loss of information, depending on the memory model in use.
(355) implicit signed to unsigned conversion
A signed number is being assigned or otherwise converted to a larger unsigned type. Under
the ANSI "value preserving" rules, this will result in the signed value being first sign-extended
to a signed number the size of the target type, then converted to unsigned (which involves no
change in bit pattern). Thus an unexpected sign extension can occur. To ensure this does not happen,
first convert the signed value to an unsigned equivalent, e.g.:
int process(int input)
{
}
double inc_flt(f)
float f;
{
}
return f * 2;
/ * f will be converted to double * /
/ * warning flagged here * /
(Parser)
(Parser)
(Parser)
(Parser)
(Parser)
385