Not Keil specific; one for the 'C' experts:
Why would one put 'static' variables definitions in a header?
eg, in a header file:
/* * TCO count to temperature conversion table. */ static erTcoTableStruct tcoTableOPUS1[] = { /*{TCO,Temp,} */ {1,-99}, {4,-45}, {5,-40}, {8,-35}, {11,-30}, {16,-25}, {22,-20}, {29,-15}, {37,-10}, {48,-5}, {61,0}, {78,5}, {99,10}, {124,15}, {153,20}, {188,25}, {227,30}, {270,35}, {315,40}, {365,45}, {420,50}, {481,55}, {549,60}, {625,65}, {710,70}, {805,75}, {910,80}, {1010,85}, {1060,88} };
AIUI, the whole point of so-called "header" files in 'C' is to share stuff between source files;
But the whole point of the 'static' keyword (at file scope) in 'C' is to make stuff private so that it is not visible to other modules - ie, not shared.
So I can't see why one would want to have 'static' definitions in a header?!
Andy,
I think that 'static' does not mean 'private' unless you are declaring a function. Static, from what I remember, means that the data allocation remains in memory and is not optimized out. Thus an 'extern' to a static should be allowed.
--Cpt. Vince Foster 2nd Cannon Place Fort Marcy Park, VA
Not quite.
static applied to an automatic variable, as you say, makes its storage permanent.
But static applied to a file-scope variable does make it "private" - or, in spec-talk, gives it "internal linkage".