FSH_PREVCHAR

This function provides the mechanism for decrementing a character point, taking into account DBCS considerations.

Syntax

FSH_PREVCHAR(pBeg, ppStr)

Parameters

pBeg

is a pointer to the beginning of a string.

ppStr

is a pointer to the character pointer of a string.

The value is decremented appropriately upon return. If it is at the beginning of a string, the pointer is not decremented. If it points to the second byte of a DBCS character, it will be decremented to point to the first byte of the character.

Returns

There are no error returns.

Calling Sequence

void far pascal FSH_PREVCHAR(pBeg, ppStr)

char far * pBeg;
char far * far * ppStr;

Remarks

The FSD is responsible for verifying the string pointer and checking for segment boundaries.

Note

OS/2 does not validate input parameters. An FSD, therefore, should call FSH_PROBEBUF where appropriate.