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osc: use STRLEN() macro to make parse_rgb() more self-documenting

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The empty literals in the macro are to ensure the argument itself
is a string literal, so it can't be used on anything else.
This commit is contained in:
Craig Barnes 2021-10-20 17:05:36 +01:00
parent 6dfacb9c08
commit 2e87889279
3 changed files with 5 additions and 4 deletions
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macros.h
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@ -2,6 +2,7 @@
#define PASTE(a, b) a##b
#define XPASTE(a, b) PASTE(a, b)
#define STRLEN(str) (sizeof("" str "") - 1)
#define DO_PRAGMA(x) _Pragma(#x)
#define VERCMP(x, y, cx, cy) ((cx > x) || ((cx == x) && (cy >= y)))