casa-mp-base
Public
Source
Index: gcc/config/darwin-c.c===================================================================--- gcc/config/darwin-c.c.orig+++ gcc/config/darwin-c.c return 0; }-/* Return the value of darwin_macosx_version_min suitable for the- __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ macro,- so '10.4.2' becomes 1040. The lowest digit is always zero.- Print a warning if the version number can't be understood. */+/* Given a version string, return the version as a statically-allocated+ array of three non-negative integers. If the version string is+ invalid, return null.++ Version strings must consist of one, two, or three tokens, each+ separated by a single period. Each token must contain only the+ characters '0' through '9' and is converted to an equivalent+ integer. Omitted tokens are treated as zeros. For example:++ "10" becomes {10,0,0}+ "10.10" becomes {10,10,0}+ "10.10.1" becomes {10,10,1}+ "10.000010.1" becomes {10,10,1}+ "10.010.001" becomes {10,10,1}+ "000010.10.00001" becomes {10,10,1} */++enum version_components { MAJOR, MINOR, TINY };++static const unsigned long *+parse_version (const char *version_str)+{+ size_t version_len;+ char *end;+ static unsigned long version_array[3];++ if (! version_str)+ return NULL;++ version_len = strlen (version_str);+ if (version_len < 1)+ return NULL;++ /* Version string must consist of digits and periods only. */+ if (strspn (version_str, "0123456789.") != version_len)+ return NULL;++ if (! ISDIGIT (version_str[0]) || ! ISDIGIT (version_str[version_len - 1]))+ return NULL;++ version_array[MAJOR] = strtoul (version_str, &end, 10);+ version_str = end + ((*end == '.') ? 1 : 0);++ /* Version string must not contain adjacent periods. */+ if (*version_str == '.')+ return NULL;++ version_array[MINOR] = strtoul (version_str, &end, 10);+ version_str = end + ((*end == '.') ? 1 : 0);++ version_array[TINY] = strtoul (version_str, &end, 10);+