PARSE.DSC : Deprecated String Conversion

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CodeSonar^® 9.2p0

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CodeSecure Inc

C and C++

PARSE.DSC : Deprecated String Conversion

Summary

A string literal is coerced (implicitly converted) to char* in C++ code.

Properties

Class Name	Deprecated String Conversion
Significance	style
Mnemonic	PARSE.DSC
Categories	None
Availability	Available for C++ only (not C).
Enabling	Checks for this warning class are enabled by default. However, warning instances of this class that are issued as parser errors (rather than parser warnings) will be discarded when using factory configuration settings. To prevent these instances from being discarded, add the following WARNING_FILTER rule to the project configuration file. WARNING_FILTER += allow class="Deprecated String Conversion" To disable checks for this warning class, add the following WARNING_FILTER rule to the project configuration file. WARNING_FILTER += discard class="Deprecated String Conversion"

Example

// PARSE.DSC.cpp

char *str1 = "red";         // 'Deprecated String Conversion' warning issued here if code compiled as C++
                            // ('C String' and 'Non-const String Literal' warnings also issued)

const char *str2 = "orange";                // const char*   ('C String' warning issued here)
char str3[] = "yellow";                     // char[]        ('Use of Array Type' warning issued here)
char *str4 = (char *)"green";               // explicit cast ('C String' and 'Non-const String Literal' warnings issued here)

void f(char * s);

void g(void){
    f("blue");              // 'Deprecated String Conversion' warning issued here if code compiled as C++
                            // ('Non-const String Literal' warning also issued)
}

Relevant Configuration File Parameters

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

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