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C/C++ Users Group Library 1996 July
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C-C++ Users Group Library July 1996.iso
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vol_100
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163_01
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isdigit.c
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1988-01-30
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/*
** isdigit -- true if argument is valid ASCII digit
*/
isdigit(c) char c; {
if(c >= '0' && c <= '9') return 1;
else return 0;
}