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Groups > comp.std.c > #319

Types in C

From jacob navia <jacob@spamsink.net>
Newsgroups comp.std.c, comp.lang.c
Subject Types in C
Date 2011-05-22 21:29 +0200
Organization lccwin
Message-ID <irbo6c$ul$1@speranza.aioe.org> (permalink)

Cross-posted to 2 groups.

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Hi

I am updating my tutorial of C, and I have added a section of type
classification. Please tell me if I forgot something or said
something wrong if possible.

Thanks in advance for your help


A C type can be either a function type, an incomplete type or an object
type. Function types can be either fully specified, i.e. we have a
prototype available, or partially specified with missing arguments but
a known return value. The function type "implicit int function"  with
return value and arguments unknown, has been declared obsolete in C99.

Incomplete types are unspecified and it is assumed that they will be
specified elsewhere, except for the void type that is an incomplete
type that can't be further specified.

Object types can be either scalar or composite types. Composite types
are built from the scalar types: structures, unions and arrays. Scalar
types are of two kinds: arithmetic or pointer types. Pointer types can
point to scalar or composite types, to functions or to incomplete types.

Arithmetic types have two kinds: integer types and floating types. The 
integer types are either standard integers, bit fields or enumerations.

The standard integer types are boolean, char, short, int, long and long
long, all with signed or unsigned types, except the boolean type
that hasn't any sign but is not an unsigned type.

Floating types are either real or complex, with both of them appearing 
in three flavors: float, double and long double.

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Thread

Types in C jacob navia <jacob@spamsink.net> - 2011-05-22 21:29 +0200
  Re: Types in C Keith Thompson <kst-u@mib.org> - 2011-05-22 12:48 -0700
  Re: Types in C Marcin Grzegorczyk <mgrzegor@poczta.onet.pl> - 2011-05-30 22:42 +0200
    Re: Types in C Shao Miller <sha0.miller@gmail.com> - 2011-05-30 17:45 -0500
      Re: Types in C Keith Thompson <kst-u@mib.org> - 2011-05-31 08:47 -0700
        Re: Types in C Shao Miller <sha0.miller@gmail.com> - 2011-05-31 13:54 -0400
      Re: Types in C Tim Rentsch <txr@alumni.caltech.edu> - 2011-05-31 22:38 -0700
        Re: Types in C Shao Miller <sha0.miller@gmail.com> - 2011-06-01 07:22 -0500
          Re: Types in C Tim Rentsch <txr@alumni.caltech.edu> - 2011-06-01 12:13 -0700
    Re: Types in C jacob navia <jacob@spamsink.net> - 2011-05-31 00:16 +0200
      Re: Types in C Shao Miller <sha0.miller@gmail.com> - 2011-05-30 18:30 -0500
        Re: Types in C Tim Rentsch <txr@alumni.caltech.edu> - 2011-05-31 22:43 -0700
          Re: Types in C Shao Miller <sha0.miller@gmail.com> - 2011-06-01 07:41 -0500
            Re: Types in C Tim Rentsch <txr@alumni.caltech.edu> - 2011-06-01 12:23 -0700
      Re: Types in C Marcin Grzegorczyk <mgrzegor@poczta.onet.pl> - 2011-06-02 22:44 +0200
        Re: Types in C jacob navia <jacob@spamsink.net> - 2011-06-02 22:49 +0200
          Re: Types in C Keith Thompson <kst-u@mib.org> - 2011-06-02 15:26 -0700

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