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Writes the C string pointed by str to the stream.
The function begins copying from the address specified (str) until it reaches the terminating null character ('\0'). This terminating null-character is not copied to the stream.
Notice that fputs not only differs from puts in that the destination stream can be specified, but also fputs does not write additional characters, while puts appends a newline character at the end automatically.
On error, the function returns EOF and sets the error indicator (ferror).
This program allows to append a line to a file called mylog.txt each time it is run.
Reference
C library:
- <cassert> (assert.h)
- <cctype> (ctype.h)
- <cerrno> (errno.h)
-
<cfenv> (fenv.h)C++11
- <cfloat> (float.h)
-
<cinttypes> (inttypes.h)C++11
- <ciso646> (iso646.h)
- <climits> (limits.h)
- <clocale> (locale.h)
- <cmath> (math.h)
- <csetjmp> (setjmp.h)
- <csignal> (signal.h)
- <cstdarg> (stdarg.h)
-
<cstdbool> (stdbool.h)C++11
- <cstddef> (stddef.h)
-
<cstdint> (stdint.h)C++11
- <cstdio> (stdio.h)
- <cstdlib> (stdlib.h)
- <cstring> (string.h)
-
<ctgmath> (tgmath.h)C++11
- <ctime> (time.h)
-
<cuchar> (uchar.h)C++11
- <cwchar> (wchar.h)
- <cwctype> (wctype.h)
Containers:
-
<array>C++11
- <deque>
-
<forward_list>C++11
- <list>
- <map>
- <queue>
- <set>
- <stack>
-
<unordered_map>C++11
-
<unordered_set>C++11
- <vector>
-
Input/Output:
Multi-threading:
-
<atomic>C++11
-
<condition_variable>C++11
-
<future>C++11
-
<mutex>C++11
-
<thread>C++11
-
Other:
- <algorithm>
- <bitset>
-
<chrono>C++11
-
<codecvt>C++11
- <complex>
- <exception>
- <functional>
-
<initializer_list>C++11
- <iterator>
- <limits>
- <locale>
- <memory>
- <new>
- <numeric>
-
<random>C++11
-
<ratio>C++11
-
<regex>C++11
- <stdexcept>
- <string>
-
<system_error>C++11
-
<tuple>C++11
-
<type_traits>C++11
-
<typeindex>C++11
- <typeinfo>
- <utility>
- <valarray>
<cstdio> (stdio.h)
functions
- clearerr
- fclose
- feof
- ferror
- fflush
- fgetc
- fgetpos
- fgets
- fopen
- fprintf
- fputc
- fputs
- fread
- freopen
- fscanf
- fseek
- fsetpos
- ftell
- fwrite
- getc
- getchar
- gets
- perror
- printf
- putc
- putchar
- puts
- remove
- rename
- rewind
- scanf
- setbuf
- setvbuf
-
snprintfC++11
- sprintf
- sscanf
- tmpfile
- tmpnam
- ungetc
- vfprintf
-
vfscanfC++11
- vprintf
-
vscanfC++11
-
vsnprintfC++11
- vsprintf
-
vsscanfC++11
objects
types
macro constants
function
<cstdio>
fputs
int fputs ( const char * str, FILE * stream );
Write string to stream
The function begins copying from the address specified (str) until it reaches the terminating null character ('\0'). This terminating null-character is not copied to the stream.
Notice that fputs not only differs from puts in that the destination stream can be specified, but also fputs does not write additional characters, while puts appends a newline character at the end automatically.
Parameters
- str
- C string with the content to be written to stream.
- stream
- Pointer to a FILE object that identifies an output stream.
Return Value
On success, a non-negative value is returned.On error, the function returns EOF and sets the error indicator (ferror).
Example
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This program allows to append a line to a file called mylog.txt each time it is run.
See also
- puts
- Write string to stdout (function)
- fgets
- Get string from stream (function)
- fputc
- Write character to stream (function)
- fprintf
- Write formatted data to stream (function)
- fwrite
- Write block of data to stream (function)
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Spotted an error? contact us