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1.1 ! root 1: #ifndef _STDIO_H ! 2: #define _STDIO_H ! 3: ! 4: FILE_LICENCE ( GPL2_OR_LATER ); ! 5: ! 6: #include <stdint.h> ! 7: #include <stdarg.h> ! 8: ! 9: extern int __attribute__ (( format ( printf, 1, 2 ) )) ! 10: printf ( const char *fmt, ... ); ! 11: ! 12: extern int __attribute__ (( format ( printf, 3, 4 ) )) ! 13: snprintf ( char *buf, size_t size, const char *fmt, ... ); ! 14: ! 15: extern int __attribute__ (( format ( printf, 2, 3 ) )) ! 16: asprintf ( char **strp, const char *fmt, ... ); ! 17: ! 18: extern int vprintf ( const char *fmt, va_list args ); ! 19: ! 20: extern int vsnprintf ( char *buf, size_t size, const char *fmt, va_list args ); ! 21: ! 22: extern int vasprintf ( char **strp, const char *fmt, va_list args ); ! 23: ! 24: /** ! 25: * Write a formatted string to a buffer ! 26: * ! 27: * @v buf Buffer into which to write the string ! 28: * @v fmt Format string ! 29: * @v ... Arguments corresponding to the format string ! 30: * @ret len Length of formatted string ! 31: */ ! 32: #define sprintf( buf, fmt, ... ) \ ! 33: snprintf ( (buf), ~( ( size_t ) 0 ), (fmt), ## __VA_ARGS__ ) ! 34: ! 35: /** ! 36: * Write a formatted string to a buffer ! 37: * ! 38: * @v buf Buffer into which to write the string ! 39: * @v fmt Format string ! 40: * @v args Arguments corresponding to the format string ! 41: * @ret len Length of formatted string ! 42: */ ! 43: static inline int vsprintf ( char *buf, const char *fmt, va_list args ) { ! 44: return vsnprintf ( buf, ~( ( size_t ) 0 ), fmt, args ); ! 45: } ! 46: ! 47: #endif /* _STDIO_H */
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