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#ifndef MAT_TYPE
#error MAT_TYPE must be defined
#endif
#include <stddef.h>
#include <assert.h>
#define PP_CONCAT1(x,y) x ## y
#define PP_CONCAT(x,y) PP_CONCAT1(x,y)
#ifndef MAT_H_SHARED
#define MAT_H_SHARED
#define DECL_MAT(NAME, TYPE, X, Y) \
PP_CONCAT(mat_, TYPE) NAME = { \
.data = (TYPE[X * Y]){}, \
.stride = X, \
}
#define DECL_MAT_DATA(NAME, TYPE, X, Y, ...) \
PP_CONCAT(mat_, TYPE) NAME = { \
.data = (TYPE[X * Y]){__VA_ARGS__}, \
.stride = X, \
}
#endif
#define SELF_T PP_CONCAT(mat_, MAT_TYPE)
#define F(NAME) PP_CONCAT(NAME##_, MAT_TYPE)
typedef struct {
MAT_TYPE *data;
size_t stride;
} SELF_T;
static inline MAT_TYPE *F(imat)(SELF_T mat, size_t x, size_t y) {
assert(x >= 0 && x < mat.stride);
assert(y >= 0);
return &mat.data[x + y*mat.stride];
}
#undef SELF_T
#undef MAT_TYPE
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