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#ifndef SPM_ERROR_HANDLER_H
#define SPM_ERROR_HANDLER_H
#define _SPM_ERR_BASE 0x8000 // SPM errors begin at 32768
#define _SPM_ERR_MASK 0x7FFF // Support up to 32768 error strings (zero index)
#define _SPM_ERR(X) _SPM_ERR_BASE + X // Create an error code
#define SPM_ERR_CONFIRM(X) (X >= 0x8000) // Is X a SPM error code? (no=0, yes=!0)
#define SPM_ERR_INDEX(X) (_SPM_ERR_MASK & X) // get index of error string
#define SPM_ERR_SUCCESS _SPM_ERR(0) // no error
#define SPM_ERR_ROOT_NO_RECORD _SPM_ERR(1) // "root" has no root record
#define SPM_ERR_ROOT_UNSAFE _SPM_ERR(2) // "root" at root, "/"
#define SPM_ERR_PKG_NOT_FOUND _SPM_ERR(3) // package not found
#define SPM_ERR_PKG_INVALID _SPM_ERR(4) // invalid package (wrong structure, missing data, etc)
#define SPM_ERR_PKG_CHECKSUM _SPM_ERR(5) // bad checksum
#define SPM_ERR_PKG_FETCH _SPM_ERR(6) // failed to download package
#define SPM_ERR_MANIFEST_INVALID _SPM_ERR(7) // manifest file is invalid (no header)
#define SPM_ERR_MANIFEST_EMPTY _SPM_ERR(8) // manifest file has no data
#define SPM_ERR_PARSE _SPM_ERR(9) // general parsing error
#define SPM_ERR_NOT_IMPLEMENTED _SPM_ERR(10) // not implemented (does exist on this platform)
#define SPM_ERR_FETCH _SPM_ERR(11) // failed to download data (non-package)
extern int spmerrno;
extern const char *SPM_ERR_STRING[];
void spmerrno_cause(const char *reason);
char *spm_strerror(int code);
void spm_perror(const char *msg);
void spm_die(void);
#endif //SPM_ERROR_HANDLER_H
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