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#REDIRECT ]
{{lowercase|title=putchar}}


{{Redirect category shell|
'''putchar''' is a ] in ] that writes a single ] to the ]. Its prototype is as follows:
{{R with history}}
:<code>int putchar (int character)</code>
{{R to anchor}}

⚫ }}
The character to be printed is fed into the function as an argument, and if the writing is successful, the argument character is returned. Otherwise, ] is returned.

The <code>putchar</code> function is specified in the ] ] ].

==Sample usage==
The following program uses ] to read characters into an array and print them out using the <code>putchar</code> function after an ] character is found.

#include <stdio.h>
int main() {
char str;
int n = 0;
while (!feof(stdin)) {
str = getchar();
++n;
}
for (int i = 0; i < n; ++i) {
putchar(str);
}
return 0;
⚫ }

The function specifies the reading length's maximum value at 1000 characters; however if the end-of-file character doesn't come up after 1000 characters are read, different ]s and different ]s will give different results: Some cases will terminate the program at a ], while some others will read the remaining string into the non-] area of the memory, possibly causing errors to other programs.

==See also==
*]
*]
*]

==References==
*

]

Latest revision as of 05:17, 26 April 2023

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