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9c6d78c26d
The C standard states:
> The fprintf function returns the number of characters transmitted,
> or a negative value if an output or encoding error occurred or if
> the implementation does not support a specified width length
> modifier.
- C Standard, 7.23.6.1.15. The fprintf function
However, cosmopolitan fails to return a negative value in the case of
an output error, meaning that a program such as:
#include <stdio.h>
int main()
{
FILE *fp = fopen("/dev/full", "w");
setbuf(fp, NULL);
printf("fprintf: %d\n", fprintf(fp, "test\n"));
printf("fflush: %d\n", fflush(fp));
}
will, under cosmopolitan, print that no error occured in either of the
calls to fprintf and fflush.
This patch fixes this, along with the associated GitHub issue,
https://github.com/jart/cosmopolitan/issues/784
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| .. | ||
| bits | ||
| calls | ||
| dns | ||
| fmt | ||
| intrin | ||
| log | ||
| mem | ||
| nexgen32e | ||
| release | ||
| runtime | ||
| sock | ||
| stdio | ||
| str | ||
| thread | ||
| time | ||
| tinymath | ||
| x | ||
| xed | ||
| zipos | ||
| test.mk | ||