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Fix secp256k1 compilation on Windows. #8

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Fix secp256k1 compilation on Windows. #8

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20 changes: 14 additions & 6 deletions secp256k1/src/scratch.h
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Original file line number Diff line number Diff line change
Expand Up @@ -20,20 +20,28 @@ typedef struct secp256k1_scratch_space_struct {
const secp256k1_callback* error_callback;
} secp256k1_scratch;

static secp256k1_scratch* secp256k1_scratch_create(const secp256k1_callback* error_callback, size_t max_size);
#if defined(_WIN32) || defined(_WIN64)
#define S
#else
#define S static
#endif

S secp256k1_scratch* secp256k1_scratch_create(const secp256k1_callback* error_callback, size_t max_size);

static void secp256k1_scratch_destroy(secp256k1_scratch* scratch);
S void secp256k1_scratch_destroy(secp256k1_scratch* scratch);

/** Attempts to allocate a new stack frame with `n` available bytes. Returns 1 on success, 0 on failure */
static int secp256k1_scratch_allocate_frame(secp256k1_scratch* scratch, size_t n, size_t objects);
S int secp256k1_scratch_allocate_frame(secp256k1_scratch* scratch, size_t n, size_t objects);

/** Deallocates a stack frame */
static void secp256k1_scratch_deallocate_frame(secp256k1_scratch* scratch);
S void secp256k1_scratch_deallocate_frame(secp256k1_scratch* scratch);

/** Returns the maximum allocation the scratch space will allow */
static size_t secp256k1_scratch_max_allocation(const secp256k1_scratch* scratch, size_t n_objects);
S size_t secp256k1_scratch_max_allocation(const secp256k1_scratch* scratch, size_t n_objects);

/** Returns a pointer into the most recently allocated frame, or NULL if there is insufficient available space */
static void *secp256k1_scratch_alloc(secp256k1_scratch* scratch, size_t n);
S void *secp256k1_scratch_alloc(secp256k1_scratch* scratch, size_t n);

#undef S

#endif