Import of the watch repository from Pebble

src/libc/pblibc_private.h

@@ -0,0 +1,149 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+// Rename (and re-define) the libc functions
+#if UNITTEST
+#include <stddef.h>
+#include <stdarg.h>
+
+# define PBLIBC(fn) pblibc_##fn
+
+// String functions
+# undef memcmp
+# define memcmp PBLIBC(memcmp)
+# undef memcpy
+# define memcpy PBLIBC(memcpy)
+# undef memmove
+# define memmove PBLIBC(memmove)
+# undef memset
+# define memset PBLIBC(memset)
+# undef memchr
+# define memchr PBLIBC(memchr)
+# undef atoi
+# define atoi PBLIBC(atoi)
+# undef atol
+# define atol PBLIBC(atol)
+# undef strtol
+# define strtol PBLIBC(strtol)
+# undef strcat
+# define strcat PBLIBC(strcat)
+# undef strncat
+# define strncat PBLIBC(strncat)
+# undef strlen
+# define strlen PBLIBC(strlen)
+# undef strnlen
+# define strnlen PBLIBC(strnlen)
+# undef strcpy
+# define strcpy PBLIBC(strcpy)
+# undef strncpy
+# define strncpy PBLIBC(strncpy)
+# undef strcmp
+# define strcmp PBLIBC(strcmp)
+# undef strncmp
+# define strncmp PBLIBC(strncmp)
+# undef strchr
+# define strchr PBLIBC(strchr)
+# undef strrchr
+# define strrchr PBLIBC(strrchr)
+# undef strcspn
+# define strcspn PBLIBC(strcspn)
+# undef strspn
+# define strspn PBLIBC(strspn)
+# undef strstr
+# define strstr PBLIBC(strstr)
+
+int memcmp(const void *s1, const void *s2, size_t n);
+void *memcpy(void *s1, const void *s2, size_t n);
+void *memmove(void *s1, const void *s2, size_t n);
+void *memset(void *s, int c, size_t n);
+void *memchr(const void *s, int c, size_t n);
+int atoi(const char *nptr);
+long int atol(const char *nptr);
+long int strtol(const char *nptr, char **endptr, int base);
+char *strcat(char *s1, const char *s2);
+char *strncat(char *s1, const char *s2, size_t n);
+size_t strlen(const char *s);
+size_t strnlen(const char *s, size_t maxlen);
+char *strcpy(char *s1, const char *s2);
+char *strncpy(char *s1, const char *s2, size_t n);
+int strcmp(const char *s1, const char *s2);
+int strncmp(const char *s1, const char *s2, size_t n);
+char *strchr(const char *s, int c);
+char *strrchr(const char *s, int c);
+size_t strcspn(const char *s1, const char *s2);
+size_t strspn(const char *s1, const char *s2);
+char *strstr(const char *s1, const char *s2);
+
+
+// Math functions
+# undef floor
+# define floor PBLIBC(floor)
+# undef log
+# define log PBLIBC(log)
+# undef pow
+# define pow PBLIBC(pow)
+# undef scalbn
+# define scalbn PBLIBC(scalbn)
+# undef sqrt
+# define sqrt PBLIBC(sqrt)
+
+double floor(double x);
+double log(double x);
+double pow(double x, double y);
+double round(double d);
+double scalbn(double x, int n);
+double sqrt(double x);
+
+
+// ctype
+# undef __ctype_lookup
+# undef isalpha
+# undef isupper
+# undef islower
+# undef isdigit
+# undef isxdigit
+# undef isspace
+# undef ispunct
+# undef isalnum
+# undef isprint
+# undef isgraph
+# undef iscntrl
+
+# undef isascii
+# undef toascii
+
+# undef toupper
+# undef tolower
+
+
+// printf
+# undef vsprintf
+# define vsprintf PBLIBC(vsprintf)
+# undef vsnprintf
+# define vsnprintf PBLIBC(vsnprintf)
+# undef sprintf
+# define sprintf PBLIBC(sprintf)
+# undef snprintf
+# define snprintf PBLIBC(snprintf)
+
+int sprintf(char *str, const char *format, ...);
+int snprintf(char *str, size_t size, const char *format, ...);
+int vsprintf(char *str, const char *format, va_list ap);
+int vsnprintf(char *str, size_t size, const char *format, va_list ap);
+
+#endif