27b7ace9fd
When gcc is building without -fno-builtin, it will optimize calls like
printf("\n") into a call to putchar('\n'), but it won't use a static inline
in that case, instead insisting on a real function.
To make this a bit easier, adopt the usual C library practice of making
putc and putchar macros instead of static inline functions. There's no loss
of typechecking as the parameters are directly passed to underlying
functions with the same parameter types.
Signed-off-by: Keith Packard <keithp@keithp.com>
71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/* stdio.h */
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/*
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* Copyright (c) 2014 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_STDIO_H_
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#define ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_STDIO_H_
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#include <zephyr/toolchain.h>
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#include <stdarg.h> /* Needed to get definition of va_list */
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if !defined(__FILE_defined)
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#define __FILE_defined
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typedef int FILE;
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#endif
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#if !defined(EOF)
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#define EOF (-1)
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#endif
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#define stdin ((FILE *) 1)
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#define stdout ((FILE *) 2)
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#define stderr ((FILE *) 3)
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#define SEEK_SET 0 /* Seek from beginning of file. */
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#define SEEK_CUR 1 /* Seek from current position. */
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#define SEEK_END 2 /* Seek from end of file. */
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int __printf_like(1, 2) printf(const char *ZRESTRICT format, ...);
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int __printf_like(3, 4) snprintf(char *ZRESTRICT str, size_t len,
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const char *ZRESTRICT format, ...);
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int __printf_like(2, 3) sprintf(char *ZRESTRICT str,
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const char *ZRESTRICT format, ...);
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int __printf_like(2, 3) fprintf(FILE *ZRESTRICT stream,
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const char *ZRESTRICT format, ...);
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int __printf_like(1, 0) vprintf(const char *ZRESTRICT format, va_list list);
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int __printf_like(3, 0) vsnprintf(char *ZRESTRICT str, size_t len,
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const char *ZRESTRICT format,
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va_list list);
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int __printf_like(2, 0) vsprintf(char *ZRESTRICT str,
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const char *ZRESTRICT format, va_list list);
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int __printf_like(2, 0) vfprintf(FILE *ZRESTRICT stream,
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const char *ZRESTRICT format,
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va_list ap);
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void perror(const char *s);
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int puts(const char *s);
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int fputc(int c, FILE *stream);
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int fputs(const char *ZRESTRICT s, FILE *ZRESTRICT stream);
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size_t fwrite(const void *ZRESTRICT ptr, size_t size, size_t nitems,
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FILE *ZRESTRICT stream);
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#define putc(c, stream) fputc(c, stream)
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#define putchar(c) putc(c, stdout)
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_STDIO_H_ */
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