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LibC: Declare ssize_t in a platform-agnostic way

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While the compiler provides __SIZE_TYPE__ for declaring size_t,
there's unfortunately no __SSIZE_TYPE__ for ssize_t.

However, we can trick the preprocessor into doing what we want anyway
by doing "#define unsigned signed" before using __SIZE_TYPE__ again.
This commit is contained in:
Andreas Kling 2020-05-23 13:52:54 +02:00
parent 8ec8304d74
commit a0d3c03950
2 changed files with 5 additions and 3 deletions
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5
Libraries/LibC/stddef.h
View file

@ -40,4 +40,9 @@
typedef __PTRDIFF_TYPE__ ptrdiff_t;
typedef __SIZE_TYPE__ size_t;
/* There is no __SSIZE_TYPE__ but we can trick the preprocessor into defining it for us anyway! */
#define unsigned signed
typedef __SIZE_TYPE__ ssize_t;
#undef unsigned
#endif