#ifndef _STDIO_H #define _STDIO_H FILE_LICENCE ( GPL2_OR_LATER ); #include <stdint.h> #include <stdarg.h> extern int __attribute__ (( format ( printf, 1, 2 ) )) printf ( const char *fmt, ... ); extern int __attribute__ (( format ( printf, 3, 4 ) )) snprintf ( char *buf, size_t size, const char *fmt, ... ); extern int __attribute__ (( format ( printf, 2, 3 ) )) asprintf ( char **strp, const char *fmt, ... ); extern int vprintf ( const char *fmt, va_list args ); extern int vsnprintf ( char *buf, size_t size, const char *fmt, va_list args ); extern int vasprintf ( char **strp, const char *fmt, va_list args ); /** * Write a formatted string to a buffer * * @v buf Buffer into which to write the string * @v fmt Format string * @v ... Arguments corresponding to the format string * @ret len Length of formatted string */ #define sprintf( buf, fmt, ... ) \ snprintf ( (buf), ~( ( size_t ) 0 ), (fmt), ## __VA_ARGS__ ) /** * Write a formatted string to a buffer * * @v buf Buffer into which to write the string * @v fmt Format string * @v args Arguments corresponding to the format string * @ret len Length of formatted string */ static inline int vsprintf ( char *buf, const char *fmt, va_list args ) { return vsnprintf ( buf, ~( ( size_t ) 0 ), fmt, args ); } #endif /* _STDIO_H */