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Comments on What is the purpose of having underscored names and then defining a non-underscored alias to it?
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What is the purpose of having underscored names and then defining a non-underscored alias to it?
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In a C implementation in <stdio.h> on Linux I saw something like:
extern FILE *__stdinp;
extern FILE *__stdoutp;
extern FILE *__stderrp;
And then:
#define stdin __stdinp
#define stdout __stdoutp
#define stderr __stderrp
My question is, for what reason would an implementation provide the __name items and then create aliases to them instead of just providing the canonical name to begin with?
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