xref: /aosp_15_r20/external/musl/src/stdio/__uflow.c (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker #include "stdio_impl.h"
2*c9945492SAndroid Build Coastguard Worker 
3*c9945492SAndroid Build Coastguard Worker /* This function assumes it will never be called if there is already
4*c9945492SAndroid Build Coastguard Worker  * data buffered for reading. */
5*c9945492SAndroid Build Coastguard Worker 
__uflow(FILE * f)6*c9945492SAndroid Build Coastguard Worker int __uflow(FILE *f)
7*c9945492SAndroid Build Coastguard Worker {
8*c9945492SAndroid Build Coastguard Worker 	unsigned char c;
9*c9945492SAndroid Build Coastguard Worker 	if (!__toread(f) && f->read(f, &c, 1)==1) return c;
10*c9945492SAndroid Build Coastguard Worker 	return EOF;
11*c9945492SAndroid Build Coastguard Worker }
12