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CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
C and C++

LANG.TYPE.BASIC : Basic Numerical Type Used

Summary

A basic type was used. Basic types such as short, int, and long have different ranges on different platforms. Code that directly uses these types likely makes assumptions about their suitability for some purpose, and may not function properly on some platforms. Use logical types such as size_t or physical types such as int32_t to more closely align with the purpose of the variable or field.

Properties

Class Name Basic Numerical Type Used
Significance style
Mnemonic LANG.TYPE.BASIC
Categories
MisraC2025 MisraC2025:D.4.6 typedefs that indicate size and signedness should be used in place of the basic integer types
MisraC2023 MisraC2023:D.4.6 typedefs that indicate size and signedness should be used in place of the basic numerical types
Misra2012 Misra2012:D.4.6 typedefs that indicate size and signedness should be used in place of the basic numerical types
Misra2004 Misra2004:6.3 typedefs that indicate size and signedness should be used in place of the basic numerical types
AUTOSARC++14 AUTOSARC++14:A3-9-1 Fixed width integer types from <cstdint>, indicating the size and signedness, shall be used in place of the basic numerical types.
MisraC++2008 MisraC++2008:3-9-2 typedefs that indicate size and signedness should be used in place of the basic numerical types.
MisraC++2023 MisraC++2023:6.9.2 The names of the standard signed integer types and standard unsigned integer types should not be used
CWE CWE:710 Improper Adherence to Coding Standards
CERT-C CERT-C:INT01-C Use rsize_t or size_t for all integer values representing the size of an object
JSF++ JSF++:209 The basic types of int, short, long, float and double shall not be used, but specific-length equivalents should be typedef'd accordingly for each compiler, and these type names used in the code.
JPL JPL:17 Use U32, I16, etc instead of predefined C data types such as int, short, etc.
Availability Available for C and C++.
Enabling Checks for this warning class are disabled by default, and require the unnormalized C ASTs for the project. To enable them, add the following WARNING_FILTER rule and RETAIN_UNNORMALIZED_C_AST specification to the project configuration file. 
RETAIN_UNNORMALIZED_C_AST = Yes
WARNING_FILTER += allow class="Basic Numerical Type Used"
Note that retaining the unnormalized ASTs will increase the disk space used to store the project representation, and may make the analysis take longer.

Example 

#include <stdint.h>
#include <stdlib.h>

int basic_int;         /* 'Basic Numerical Type Used' warning issued here */
int32_t physical_int;               /* ok */
size_t logical_size;                /* ok */
ssize_t logical_signed_size;        /* ok */

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

 

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