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54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/**
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* @file stdlib.h
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* Provides missing C standard library functions
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* The newlib versions of these calls are not being used due to dependence on
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* unsupported system calls.
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*
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* Copyright (C) 2018 Clyne Sullivan
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef STDLIB_H_
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#define STDLIB_H_
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/**
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* Parses a formatted string, storing the result in the given buffer.
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* @param buf the buffer to print the parsed string to
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* @param max the maximum number of bytes to write to the buffer
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* @param format the format string
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* @return a pointer to the buffer
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*/
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char *snprintf(char *buf, unsigned int max, const char *format, ...);
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/**
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* Attempts to convert the given string to a float.
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* @param s the string to convert
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* @param endptr if not-null, set to the address of the character after the
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* number
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* @return the resulting float, or zero if an error occurred
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*/
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float strtof(const char *s, char **endptr);
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char *ftostr(char *buf, float f);
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/**
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* Attempts to convert the given string to an integer.
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* @param s the string to convert
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* @return the resulting integer, or zero if an error occurred
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*/
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int atoi(const char *s);
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#endif // STDLIB_H_
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