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include/vsprintf.h
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/* * (C) Copyright 2000-2009 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ #ifndef __VSPRINTF_H #define __VSPRINTF_H |
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#include <stdarg.h> |
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#include <linux/types.h> |
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ulong simple_strtoul(const char *cp, char **endp, unsigned int base); |
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/** * strict_strtoul - convert a string to an unsigned long strictly * @param cp The string to be converted * @param base The number base to use * @param res The converted result value * @return 0 if conversion is successful and *res is set to the converted * value, otherwise it returns -EINVAL and *res is set to 0. * * strict_strtoul converts a string to an unsigned long only if the * string is really an unsigned long string, any string containing * any invalid char at the tail will be rejected and -EINVAL is returned, * only a newline char at the tail is acceptible because people generally * change a module parameter in the following way: * * echo 1024 > /sys/module/e1000/parameters/copybreak * * echo will append a newline to the tail. * * simple_strtoul just ignores the successive invalid characters and * return the converted value of prefix part of the string. * * Copied this function from Linux 2.6.38 commit ID: * 521cb40b0c44418a4fd36dc633f575813d59a43d * */ |
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int strict_strtoul(const char *cp, unsigned int base, unsigned long *res); unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base); long simple_strtol(const char *cp, char **endp, unsigned int base); |
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/** |
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* trailing_strtol() - extract a trailing integer from a string * * Given a string this finds a trailing number on the string and returns it. * For example, "abc123" would return 123. * * @str: String to exxamine * @return training number if found, else -1 */ long trailing_strtol(const char *str); /** * trailing_strtoln() - extract a trailing integer from a fixed-length string * * Given a fixed-length string this finds a trailing number on the string * and returns it. For example, "abc123" would return 123. Only the * characters between @str and @end - 1 are examined. If @end is NULL, it is * set to str + strlen(str). * * @str: String to exxamine * @end: Pointer to end of string to examine, or NULL to use the * whole string * @return training number if found, else -1 */ long trailing_strtoln(const char *str, const char *end); /** |
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* panic() - Print a message and reset/hang * * Prints a message on the console(s) and then resets. If CONFIG_PANIC_HANG is |
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* defined, then it will hang instead of resetting. |
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* * @param fmt: printf() format string for message, which should not include * , followed by arguments */ |
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void panic(const char *fmt, ...) __attribute__ ((format (__printf__, 1, 2), noreturn)); |
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/** |
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* panic_str() - Print a message and reset/hang * * Prints a message on the console(s) and then resets. If CONFIG_PANIC_HANG is |
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* defined, then it will hang instead of resetting. |
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* * This function can be used instead of panic() when your board does not * already use printf(), * to keep code size small. * * @param fmt: string to display, which should not include */ void panic_str(const char *str) __attribute__ ((noreturn)); /** |
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* Format a string and place it in a buffer * * @param buf The buffer to place the result into * @param fmt The format string to use * @param ... Arguments for the format string * * The function returns the number of characters written * into @buf. * * See the vsprintf() documentation for format string extensions over C99. */ |
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int sprintf(char *buf, const char *fmt, ...) __attribute__ ((format (__printf__, 2, 3))); |
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/** * Format a string and place it in a buffer (va_list version) * * @param buf The buffer to place the result into |
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* @param fmt The format string to use * @param args Arguments for the format string * @return the number of characters which have been written into |
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* the @buf not including the trailing '\0'. |
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* * If you're not already dealing with a va_list consider using scnprintf(). * * See the vsprintf() documentation for format string extensions over C99. */ |
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int vsprintf(char *buf, const char *fmt, va_list args); char *simple_itoa(ulong i); |
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/** * Format a string and place it in a buffer * * @param buf The buffer to place the result into * @param size The size of the buffer, including the trailing null space * @param fmt The format string to use * @param ... Arguments for the format string * @return the number of characters which would be * generated for the given input, excluding the trailing null, * as per ISO C99. If the return is greater than or equal to * @size, the resulting string is truncated. * * See the vsprintf() documentation for format string extensions over C99. */ |
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int snprintf(char *buf, size_t size, const char *fmt, ...) __attribute__ ((format (__printf__, 3, 4))); |
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/** * Format a string and place it in a buffer * * @param buf The buffer to place the result into * @param size The size of the buffer, including the trailing null space * @param fmt The format string to use * @param ... Arguments for the format string * * The return value is the number of characters written into @buf not including * the trailing '\0'. If @size is == 0 the function returns 0. * * See the vsprintf() documentation for format string extensions over C99. */ |
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int scnprintf(char *buf, size_t size, const char *fmt, ...) __attribute__ ((format (__printf__, 3, 4))); |
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/** * Format a string and place it in a buffer (base function) * * @param buf The buffer to place the result into * @param size The size of the buffer, including the trailing null space * @param fmt The format string to use * @param args Arguments for the format string * @return The number characters which would be generated for the given * input, excluding the trailing '\0', as per ISO C99. Note that fewer * characters may be written if this number of characters is >= size. * * This function follows C99 vsnprintf, but has some extensions: * %pS output the name of a text symbol * %pF output the name of a function pointer * %pR output the address range in a struct resource * * The function returns the number of characters which would be * generated for the given input, excluding the trailing '\0', * as per ISO C99. * * Call this function if you are already dealing with a va_list. * You probably want snprintf() instead. */ |
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int vsnprintf(char *buf, size_t size, const char *fmt, va_list args); |
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/** * Format a string and place it in a buffer (va_list version) * * @param buf The buffer to place the result into * @param size The size of the buffer, including the trailing null space * @param fmt The format string to use * @param args Arguments for the format string * @return the number of characters which have been written into * the @buf not including the trailing '\0'. If @size is == 0 the function * returns 0. * * If you're not already dealing with a va_list consider using scnprintf(). * * See the vsprintf() documentation for format string extensions over C99. */ |
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int vscnprintf(char *buf, size_t size, const char *fmt, va_list args); |
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/** * print_grouped_ull() - print a value with digits grouped by ',' * * This prints a value with grouped digits, like 12,345,678 to make it easier * to read. * * @val: Value to print * @digits: Number of digiits to print */ void print_grouped_ull(unsigned long long int_val, int digits); |
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bool str2off(const char *p, loff_t *num); bool str2long(const char *p, ulong *num); |
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#endif |