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Product:
Code Generation Tools
Internal ID:
CODEGEN-4035
Found In Release:

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ARM_18.1.0.LTS
MSP430_18.1.0.LTS
MSP430_20.2.0.LTS
ARM_18.12.0.LTS
MSP430_21.6.0.LTS
MSP430_18.12.0.LTS
MSP430_21.6.0.B1
ARM_20.2.0.LTS

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ARM_18.1.0.LTS MSP430_18.1.0.LTS MSP430_20.2.0.LTS ARM_18.12.0.LTS MSP430_21.6.0.LTS MSP430_18.12.0.LTS MSP430_21.6.0.B1 ARM_20.2.0.LTS
Release Notes:

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The compiler allows the following code without error:

struct STR {
   constexpr STR(): arr1{1,2}, arr2{3,4} {};
   const char arr1[2];
   const char arr2[2];
};
const struct STR str;
constexpr char const *ptr1 = str.arr1;
constexpr char const *ptr3 = str.arr2;

constexpr int diff2 = ptr3 - ptr1;

The definition of diff2 subtracts pointers to different objects, and should be disallowed.

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The compiler allows the following code without error: struct STR {    constexpr STR(): arr1{1,2}, arr2{3,4} {};    const char arr1[2];    const char arr2[2]; }; const struct STR str; constexpr char const *ptr1 = str.arr1; constexpr char const *ptr3 = str.arr2; constexpr int diff2 = ptr3 - ptr1; The definition of diff2 subtracts pointers to different objects, and should be disallowed.

Compiler allows constant subtraction between pointers to different objects