Defined in header <cstdio> | ||
---|---|---|
int putchar( int ch ); |
Writes a character ch
to stdout
. Internally, the character is converted to unsigned char
just before being written.
Equivalent to putc(ch, stdout)
.
ch | - | character to be written |
On success, returns the written character.
On failure, returns EOF
and sets the error indicator (see ferror()
) on stdout
.
#include <cstdio> int main() { for (char c = 'a'; c != 'z'; c++) std::putchar(c); std::putchar('\n'); // putchar return value is not equal to the argument int r = 0x1070; std::printf("\n0x%x\n", r); r = std::putchar(r); std::printf("\n0x%x\n", r); }
Output:
abcdefghijklmnopqrstuvwxy 0x1070 p 0x70
writes a character to a file stream (function) |
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