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| Hex string to MQBYTE24 correl ID? |
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| cmkeller |
 Posted: Wed Jan 19, 2005 7:32 am Post subject: Hex string to MQBYTE24 correl ID? |
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Apprentice
Joined: 09 Jan 2005
Posts: 41
Location: Queens, NY
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How in the world (in C/C++) can I take a character-string reoresentation of an MQ Message ID and put it on my message as the binary value for correlation ID? When the string starts with "41", I want to be able to put byte value \x41 (65 in decimal) in the first position of my correl ID. I tried atoi, that only works on decimals. I refuse to believe that the neither the C/C++ language , the Windows API, or the MQ API has nothing that will convert a hex string into its numeric value, leaving me to manually multiply my numbers by 16, and requiring me to manually translate A-F to 10-15.
_________________
Chaim Mattis Keller
Shadow Financial Services Corp
ckeller@shadowfinancial.com |
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| Nigelg |
| Posted: Wed Jan 19, 2005 8:13 am Post subject: |
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Grand Master
Joined: 02 Aug 2004
Posts: 1046
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Try strtol in C.
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long strtol (String, EndPointer, Base)
const char *String;
char **EndPointer;
int Base;
...
The strtol subroutine returns a long integer whose value is represented by the character string to which the String parameter points. The strtol subroutine scans the string up to the first character that is inconsistent with the Base parameter. Leading white-space characters are ignored, and an optional sign may precede the digits.
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| cmkeller |
| Posted: Wed Jan 19, 2005 9:15 pm Post subject: |
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Apprentice
Joined: 09 Jan 2005
Posts: 41
Location: Queens, NY
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