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30 lines
462 B
C
30 lines
462 B
C
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/* atol - convert decimal number in ascii to long integer */
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#include "portab.h"
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#include "ctype.h"
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LONG atol(str) /* CLEAR FUNCTION ***********/
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REG BYTE *str;
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{
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REG LONG val;
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REG WORD isneg;
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val = 0L;
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isneg = FALSE;
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while( isspace(*str) )
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str++;
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if( *str == '+' )
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str++;
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else if( *str == '-' ) {
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str++;
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isneg++;
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}
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while( *str >= '0' && *str <= '9' )
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val = 10 * val + ( *str++ - '0' );
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if( isneg )
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val = -val;
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return( val );
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}
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