StringToNum

Convert string of decimal digits to binary number

#include <BDC.h> Binary-Dec. Pack.

void StringToNum(theString, theNum );

Str255 theString ; address pascal string with decimal digits

long *theNum ; address of signed long; receives binary value

StringToNum interprets a string of decimal digits and obtains its binary

value, as a 32-bit signed integer.

theString is the address of a pascal-style length-prefixed string containing

the characters to convert. It may contain a leading plus (’+') or

minus (’-') sign and up to 10 digits (’0' to '9').

Note: This function does NOT check the validity of the digits in

theString. If you want a valid conversion in theNum, the characters

must be in the range of '0' to '9'. The string should NOT contain

commas, periods, or spaces; however, leading spaces or zeros are

OK.

theNum is the address of a signed long integer. Upon return, it will contain

the binary equivalent of the digits contained in theString.

Notes: The range is from "-2147483648" to "+2147483648".

The conversion is performed modulo 2,147,483,648 (i.e., 2^31, about 2

billion) and if a leading minus sign is present, the result is negated by

taking its two's complement.

Referenced by (12):