25 lines
555 B
C
25 lines
555 B
C
#include "stdio.h"
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int fputc(int c,FILE* file)
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{
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void* p;
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if ((file->mode & 3)==FILE_OPEN_READ)
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return EOF;
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if ((file->mode & 3)==FILE_OPEN_APPEND)
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file->filepos=file->filesize;
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if (file->filepos==file->filesize)
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{
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file->filesize++;
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if (file->filesize>file->buffersize)
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{
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p=realloc(file->buffer,file->filesize+file->filesize<<1);
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if (p==0)
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return EOF;
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file->buffersize=file->filesize+file->filesize<<1;
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file->buffer=p;
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}
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}
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file->buffer[file->filepos]=(char)c;
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file->filepos++;
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return 0;
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}
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