| I/O manipulators | ||||
| Print functions(C++23) | ||||
| C-style I/O | ||||
| Buffers | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++20) | ||||
| Streams | ||||
| Abstractions | ||||
| File I/O | ||||
| String I/O | ||||
| Array I/O | ||||
(C++23) | ||||
(C++23) | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
| Synchronized Output | ||||
(C++20) | ||||
| Types | ||||
| Error category interface | ||||
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(C++11) |
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Defined in header <cstdio> | ||
int fputs(constchar* str,std::FILE* stream); | ||
Writes every character from the null-terminated stringstr to the output streamstream, as if by repeatedly executingstd::fputc.
The terminating null character fromstr is not written.
Contents |
| str | - | null-terminated character string to be written |
| stream | - | output stream |
On success, returns a non-negative value
On failure, returnsEOF and sets theerror indicator (seestd::ferror) onstream.
The related functionstd::puts appends a newline character to the output, whilestd::fputs writes the string unmodified.
Different implementations return different non-negative numbers: some return the last character written, some return the number of characters written (orINT_MAX if the string was longer than that), some simply return a non-negative constant such as zero.
#include <cstdio> int main(void){int rc= std::fputs("Hello World",stdout); if(rc==EOF)std::perror("fputs()");// POSIX requires that errno is set}
Output:
Hello World
(C++11) | prints formatted output tostdout, a file stream or a buffer (function)[edit] |
| writes a character string tostdout (function)[edit] | |
| writes a wide string to a file stream (function)[edit] | |
| gets a character string from a file stream (function)[edit] | |
C documentation forfputs | |
