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

PARSE.BAD.TOKEN : Bad Token

Summary

A token cannot be parsed correctly because the parser encountered an unexpected character.

The C and C++ standards each specify sets of characters that may appear in identifiers and other tokens. Your compiler may also permit additional characters.

This warning class is derived from a C/C++ parser warning.

Properties

Class Name Bad Token
Significance style
Mnemonic PARSE.BAD.TOKEN
Categories
AUTOSARC++14 AUTOSARC++14:A2-3-1 Only those characters specified in the C++ Language Standard basic source character set shall be used in the source code.
CERT-C CERT-C:MSC09-C Character encoding: Use subset of ASCII for safety
JSF++ JSF++:9 Only those characters specified in the C++ basic source character set will be used.
Availability Available for C and C++.
Enabling Checks for this warning class are disabled by default. To enable them, add the following WARNING_FILTER rule to the project configuration file. 
WARNING_FILTER += allow class="Bad Token"

Example 

#include <stdio.h>

/* The code in this file will typically cause compiler errors. */

int parse_bad_token(int num) {
    int €premium = 5;                                                      /* € permitted in identifiers from C11 */
    int total = 0¥;                              /* 'Bad Token' warning issued here for token ¥ */
    int cost_£_beforetax = 5;                    /* 'Bad Token' warning issued here for token £_beforetax */
    int £tax = 1;                                /* 'Bad Token' warning issued here for token £tax */
    int total = num * (cost_£_beforetax + £tax); /* Three warnings issued here:
                                                  * - 'Bad Token' warning for token £tax
                                                  * - 'Bad Token' warning for token £_beforetax
                                                  * - 'Uninitialized Variable' warning for variable cost_
                                                  */
    printf("Computing cost including £tax");                               /* No warning for "£tax" in string literal (or comment). */
    return total + €premium;
}

Relevant Configuration File Parameters

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

 

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