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Mac-Source 1994 July
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Mac-Source_July_1994.iso
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C and C++
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Utilities
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modal-dialog-sample ƒ
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common.h
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1991-10-26
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285b
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14 lines
/*
** Project dialog example
** Module common.h
** Author Bernie Wieser ©1991
** Date 10/26/91
**
** Purpose
** Common defines.
**
*/
#define NIL ((void *)0)
#define isletter(c) (((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z')))
#define isnumber(c) ((c >= '0') && (c <= '9'))