dev-cpp-users

Re: [Dev-C++] function "size_t"

[Krzysztof K. <sa...@op...>]

Hello swagat,

Friday, June 27, 2003, 10:38:47 AM, you wrote:

sk> dear friends,

sk> can anybody tell me what is the use of function "size_t" defined in the header "stddef.h".

sk> thanks in advance

sk> swagat


"size_t" is not a function, is a data type and it is a result of "sizeof" operator.
It informs how many bytes has object for which you used "sizeof".

The type is unsigned integer but you can't assume what kind of integer
it is - 16, 32, 64 bits or more ... It depends on implementation!

For example:

size_t nIntSize = sizeof(long);     // nIntSize will be 4


-- 
Best regards,
 Krzysztof

mailto:sa...@op...
http://www.saveman.w.pl

RE: [Dev-C++] function "size_t"

[Ioannis V. <iv...@em...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of swagat kumar
> Sent: Friday, June 27, 2003 11:39 AM
> To: dev...@li...
> Subject: [Dev-C++] function "size_t"
> 
> 
> dear friends,
> 
> can anybody tell me what is the use of function "size_t" 
> defined in the header "stddef.h".


In C90 and C++98 size_t is a typedef of an unsigned integer type, that is,
it is one of the following:

unsigned char, unsigned short, unsigned int, unsigned long.

Its maximum value represents the maximum size that an object can occupy in
memory. size_t is used for such sizes.




Ioannis Vranos
 
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