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#ifndef _PCITOOL_TOOLS_H
#define _PCITOOL_TOOLS_H
#include <stdio.h>
#include <stdint.h>
#include <pcilib.h>
#define BIT_MASK(bits) ((1ll << (bits)) - 1)
#define min2(a, b) (((a)<(b))?(a):(b))
#ifdef __cplusplus
extern "C" {
#endif
/**
* Check if provided string is a decimal integer
* @param[in] str - string to check
* @return - 1 if string is a number and 0 - otherwise
*/
int pcilib_isnumber(const char *str);
/**
* Check if provided string is a hexdecimal integer, optionally prefexed with 0x
* @param[in] str - string to check
* @return - 1 if string is a number and 0 - otherwise
*/
int pcilib_isxnumber(const char *str);
/**
* Check if first \p len bytes of the provided string is a decimal integer
* @param[in] str - string to check
* @param[in] len - size of the string
* @return - 1 if string is a number and 0 - otherwise
*/
int pcilib_isnumber_n(const char *str, size_t len);
/**
* Check if first \p len bytes of the provided string is a hexdecimal integer, optionally prefexed with 0x
* @param[in] str - string to check
* @param[in] len - size of the string
* @return - 1 if string is a number and 0 - otherwise
*/
int pcilib_isxnumber_n(const char *str, size_t len);
/**
* Change the endianess of the provided number (between big- and little-endian format)
* @param[in] x - number in little/big endian format
* @return - number in big/little endian format
*/
uint16_t pcilib_swap16(uint16_t x);
/**
* Change the endianess of the provided number (between big- and little-endian format)
* @param[in] x - number in little/big endian format
* @return - number in big/little endian format
*/
uint32_t pcilib_swap32(uint32_t x);
/**
* Change the endianess of the provided number (between big- and little-endian format)
* @param[in] x - number in little/big endian format
* @return - number in big/little endian format
*/
uint64_t pcilib_swap64(uint64_t x);
/**
* Change the endianess of the provided array
* @param[out] dst - the destination memory region, can be equal to \p src
* @param[in] src - the source memory region
* @param[in] access - the size of word in bytes (1, 2, 4, or 8)
* @param[in] n - the number of words to copy (\p n * \p access bytes are copied).
*/
void pcilib_swap(void *dst, void *src, size_t access, size_t n);
#ifdef __cplusplus
}
#endif
#endif /* _PCITOOL_TOOS_H */
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