[ML] Correct the way internal linkage of constants is achieved #102
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1. There's no need for constants declared in unnamed namespaces to be declared static - they already have internal linkage 2. Constants of type char* pointing to literals should be declared const char* const - declaring them const char* does not result in internal linkage because it allows them to be changed to point at something completely different!
davidkyle
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May 23, 2018
| #else | ||
| #ifdef __GNUC__ | ||
| // Tell g++ that it's reasonable that this variable isn't used | ||
| __attribute__((unused)) static const char* LINE_ENDING = "\n"; |
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No, now this really is a constant with internal linkage it's not needed.
In fact, the warning from g++ was the canary in the mine warning that something was not right. Suppressing the warning was the wrong way to avoid it.
davidkyle
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May 24, 2018
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May 24, 2018
1. There's no need for constants declared in unnamed namespaces to be declared static - they already have internal linkage. 2. Constants of type char* pointing to literals should be declared const char* const - declaring them const char* does not result in internal linkage because it allows them to be changed to point at something completely different!
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Feb 21, 2019
Follow-on to elastic#102. Fixing more places where pointers intended to be immutable could be changed to a point at a different constant.
droberts195
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Feb 21, 2019
Follow-on to #102. Fixing more places where pointers intended to be immutable could be changed to a point at a different constant.
droberts195
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Feb 21, 2019
Follow-on to elastic#102. Fixing more places where pointers intended to be immutable could be changed to a point at a different constant. Backport of elastic#409
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to be declared
static- they already have internal linkage.char*pointing to literals should bedeclared
const char* const- declaring themconst char*doesnot result in internal linkage because it allows them to be
changed to point at something completely different!