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Client APIs and toolsYou can use the HCL Informix® implementation of client APIs to develop applications for Informix® database servers.
Informix® Object Interface for C++ GuideThe Informix® Object Interface for C++ Programmer's Guide describes how to develop HCL Informix® client applications by using the object-oriented C++ programming language.
AppendixesThis section contains additional reference information.
The ITLocale classThis section describes the ITLocale class, which encapsulates the GLS API.
Character classification methodsThis section describes the ITLocale methods for classifying characters.
The IsBlank methodThis method determines whether multibyte character c or wide character c is a blank character (space or tab, single or multibyte), according to the rules of the current locale. Blank characters include the single-byte space and tab characters and any multibyte version of these characters.

The IsBlank method

This method determines whether multibyte character c or wide character c is a blank character (space or tab, single or multibyte), according to the rules of the current locale. Blank characters include the single-byte space and tab characters and any multibyte version of these characters.

ITBool IsBlank(const char *c, int nbytes = ITLocale::ScanNoLimit) const

ITBool IsBlank(ITWChar c) const

The nbytes parameter specifies the length of the corresponding multibyte character c. You can provide an integer to specify the number of bytes in c, in which case this method reads up to this many bytes from c when trying to form a complete character. Or you can set nbytes to ITLocale::ScanNoLimit (the default), in which case this method reads as many bytes as necessary to form a complete character.

This method returns TRUE if c is a blank or tab; otherwise it returns FALSE.

If there is an error, this method returns FALSE. Call ITLocale::GetError() to retrieve a specific error message.

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