putback()

istream_real & fl::istream_real::putback

(

char

c

)

Definition at line 386 of file istream.cpp.hpp.

                                                       {
    if (mPos > 0) {
        mPos--;
        mBuffer[mPos] = c;
    } else {
        // Insert at beginning of buffer - shift existing data
        if (mBufferLen < BUFFER_SIZE - 1) {
            for (fl::size i = mBufferLen; i > 0; --i) {
                mBuffer[i] = mBuffer[i-1];
            }
            mBuffer[0] = c;
            mBufferLen++;
            mBuffer[mBufferLen] = '\0';
        }
    }
    return *this;
}

References istream_real(), BUFFER_SIZE, fl::FL_NO_EXCEPT, mBuffer, mBufferLen, and mPos.

Referenced by fl::istream::putback().

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