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IAR Embedded Workbench for RX 5.20

MISRAC2004-6.3

In this section:
Synopsis

(Advisory) typedefs that indicate size and signedness should be used in place of the basic types.

Enabled by default

No

Severity/Certainty

Low/High

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Full description

One or more of the basic types char, int, short, long, double, and float are used without a typedef. This check is identical to MISRAC++2008-3-9-2, MISRAC2012-Dir-4.6_a, MISRAC++2023-6.9.2.

Coding standards
MISRA C:2004 6.3

(Advisory) typedefs that indicate size and signedness should be used in place of the basic types.

MISRA C:2012 Dir-4.6

(Advisory) typedefs that indicate size and signedness should be used in place of the basic numerical types

MISRA C++ 2008 3-9-2

(Advisory) typedefs that indicate size and signedness should be used in place of the basic numerical types.

MISRA C++ 2023 6.9.2

(Advisory) The names of the standard signed integer types and standard unsigned integer types should not be used

Code examples

The following code example fails the check and will give a warning:

typedef signed char SCHAR;
typedef int INT;
typedef float FLOAT;

INT func(FLOAT f, INT *pi)
{
  INT x;
  INT (*fp)(const char *);
}

The following code example passes the check and will not give a warning about this issue:

typedef signed char SCHAR;
typedef int INT;
typedef float FLOAT;

INT func(FLOAT f, INT *pi)
{
  INT x;
  INT (*fp)(const SCHAR *);
}