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# std::ungetc

From cppreference.com
< cpp‎ | io‎ | c

Defined in header `<cstdio>` |  |
int ungetc( int ch, std::FILE *stream ); |  |

Puts the character `ch` back to the given file stream.

### [edit] Parameters

ch | - | character to be put back
stream | - | file stream to put the character back to

### [edit] Return value

On success `ch` is returned.

On failure EOF is returned and the given stream remains unchanged.

### [edit] See also

fgetcgetc | gets a character from a file stream (function) [edit]
C documentation for ungetc

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