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54 lines
1.4 KiB
54 lines
1.4 KiB
/***
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*atold.c - convert char string to long double
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*
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* Copyright (c) 1989-1989, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Converts a character string into a long double.
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*
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*Revision History:
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* 03-09-89 WAJ Initial version.
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* 06-05-89 WAJ Made changes for C6 compiler.
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* 05-17-91 WAJ Now uses long double.
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* 07-22-91 GDP Now uses _ULDOUBLE so that it can be used
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* even if 'long double' is not supported.
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* It also uses the C version of __strgtold()
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* 04-30-92 GDP Now calls _atoldbl
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* 05-26-92 GWK Windbg srcs
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*
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*******************************************************************************/
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#include "cv.h"
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/***
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*_ULDOUBLE _atold( char * string ) - convert string to a long double
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*
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*Purpose:
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* _atold() recognizes an optional string of whitespace, then
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* an optional sign, then a string of digits optionally
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* containing a decimal point, then an optional e or E followed
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* by an optionally signed integer, and converts all this to
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* to a long double. The first unrecognized character ends the string.
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*
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*Entry:
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* string - pointer to string to convert
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*
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*Exit:
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* returns long double value of character representation
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*
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*Exceptions:
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*
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*******************************************************************************/
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_ULDOUBLE _atold(char * string )
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{
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_ULDOUBLE x;
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_atoldbl( (_ULDOUBLE *)&x, string);
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return( x );
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}
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