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GLib Reference Manual | |
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Limits of Basic TypesLimits of Basic Types — portable method of determining the limits of the standard types |
#include <glib.h> #define G_MININT8 #define G_MAXINT8 #define G_MAXUINT8 #define G_MININT16 #define G_MAXINT16 #define G_MAXUINT16 #define G_MININT32 #define G_MAXINT32 #define G_MAXUINT32 #define G_MININT64 #define G_MAXINT64 #define G_MAXUINT64
These macros provide a portable method to determine the limits of some of the standard integer and floating point types.
#define G_MININT8 ((gint8) 0x80)
The minimum value which can be held in a gint8.
Since 2.4
#define G_MAXINT8 ((gint8) 0x7f)
The maximum value which can be held in a gint8.
Since 2.4
#define G_MAXUINT8 ((guint8) 0xff)
The maximum value which can be held in a guint8.
Since 2.4
#define G_MININT16 ((gint16) 0x8000)
The minimum value which can be held in a gint16.
Since 2.4
#define G_MAXINT16 ((gint16) 0x7fff)
The maximum value which can be held in a gint16.
Since 2.4
#define G_MAXUINT16 ((guint16) 0xffff)
The maximum value which can be held in a guint16.
Since 2.4
#define G_MININT32 ((gint32) 0x80000000)
The minimum value which can be held in a gint32.
Since 2.4
#define G_MAXINT32 ((gint32) 0x7fffffff)
The maximum value which can be held in a gint32.
Since 2.4
#define G_MAXUINT32 ((guint32) 0xffffffff)
The maximum value which can be held in a guint32.
Since 2.4
#define G_MININT64 ((gint64) G_GINT64_CONSTANT(0x8000000000000000))
The minimum value which can be held in a gint64.
#define G_MAXINT64 G_GINT64_CONSTANT(0x7fffffffffffffff)
The maximum value which can be held in a gint64.
#define G_MAXUINT64 G_GINT64_CONSTANT(0xffffffffffffffffU)
The maximum value which can be held in a guint64.