diff options
Diffstat (limited to 'dev/boot/BootKit/Support.h')
| -rw-r--r-- | dev/boot/BootKit/Support.h | 214 |
1 files changed, 92 insertions, 122 deletions
diff --git a/dev/boot/BootKit/Support.h b/dev/boot/BootKit/Support.h index 72aac293..6e1407c2 100644 --- a/dev/boot/BootKit/Support.h +++ b/dev/boot/BootKit/Support.h @@ -1,6 +1,6 @@ /* ------------------------------------------- - Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved. + Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved. ------------------------------------------- */ @@ -13,7 +13,7 @@ #include <string.h> #endif -#define kLongMax ((long)(~0UL >> 1)) +#define kLongMax ((long) (~0UL >> 1)) #define kLongMin (~kLongMax) #ifdef __BOOTZ__ @@ -40,134 +40,104 @@ EXTERN_C int strcmp(const char* whatToCheck, const char* whatToCheckRight); #include <string.h> -#endif // __BOOTZ__ +#endif // __BOOTZ__ -#define SetMem(dst, c, sz) memset(dst, c, sz) +#define SetMem(dst, c, sz) memset(dst, c, sz) #define MoveMem(dst, src, sz) memcpy(dst, src, sz) #define CopyMem(dst, src, sz) memcpy(dst, src, sz) -#define StrLen(src) strlen(src) -#define StrCmp(dst, src) strcmp(dst, src) +#define StrLen(src) strlen(src) +#define StrCmp(dst, src) strcmp(dst, src) -inline int IsSpace(int c) -{ - return c == ' '; +inline int IsSpace(int c) { + return c == ' '; } -inline int StringNCompare(const char* destination, const char* source, long length) -{ - long err = 0; +inline int StringNCompare(const char* destination, const char* source, long length) { + long err = 0; - for (long i = 0UL; i < length; ++i) - { - if (source[i] != destination[i]) - ++err; - } + for (long i = 0UL; i < length; ++i) { + if (source[i] != destination[i]) ++err; + } - return err; + return err; } -inline long StringToLong(const char* nptr, char** endptr, int base) -{ - const char *p = nptr, *endp; - bool is_neg = 0, overflow = 0; - - /* Need unsigned so (-kLongMin) can fit in these: */ - unsigned long n = 0UL, cutoff; - int cutlim; - - if (base < 0 || base == 1 || base > 36) - { - return 0L; - } - - endp = nptr; - - while (IsSpace(*p)) - p++; - - if (*p == '+') - { - p++; - } - else if (*p == '-') - { - is_neg = 1, p++; - } - if (*p == '0') - { - p++; - /* For strtol(" 0xZ", &endptr, 16), endptr should point to 'x'; - * pointing to ' ' or '0' is non-compliant. - * (Many implementations do this wrong.) */ - endp = p; - if (base == 16 && (*p == 'X' || *p == 'x')) - { - p++; - } - else if (base == 2 && (*p == 'B' || *p == 'b')) - { - /* C23 standard supports "0B" and "0b" prefixes. */ - p++; - } - else if (base == 0) - { - if (*p == 'X' || *p == 'x') - { - base = 16, p++; - } - else if (*p == 'B' || *p == 'b') - { - base = 2, p++; - } - else - { - base = 8; - } - } - } - else if (base == 0) - { - base = 10; - } - - cutoff = (is_neg) ? -(kLongMin / base) : kLongMax / base; - cutlim = (is_neg) ? -(kLongMin % base) : kLongMax % base; - - while (1) - { - int c; - if (*p >= 'A') - c = ((*p - 'A') & (~('a' ^ 'A'))) + 10; - else if (*p <= '9') - c = *p - '0'; - else - break; - if (c < 0 || c >= base) - break; - endp = ++p; - if (overflow) - { - /* endptr should go forward and point to the non-digit character - * (of the given base); required by ANSI standard. */ - if (endptr) - continue; - break; - } - if (n > cutoff || (n == cutoff && c > cutlim)) - { - overflow = 1; - continue; - } - n = n * base + c; - } - - if (endptr) - *endptr = (char*)endp; - - if (overflow) - { - return ((is_neg) ? kLongMin : kLongMax); - } - - return (long)((is_neg) ? -n : n); +inline long StringToLong(const char* nptr, char** endptr, int base) { + const char *p = nptr, *endp; + bool is_neg = 0, overflow = 0; + + /* Need unsigned so (-kLongMin) can fit in these: */ + unsigned long n = 0UL, cutoff; + int cutlim; + + if (base < 0 || base == 1 || base > 36) { + return 0L; + } + + endp = nptr; + + while (IsSpace(*p)) p++; + + if (*p == '+') { + p++; + } else if (*p == '-') { + is_neg = 1, p++; + } + if (*p == '0') { + p++; + /* For strtol(" 0xZ", &endptr, 16), endptr should point to 'x'; + * pointing to ' ' or '0' is non-compliant. + * (Many implementations do this wrong.) */ + endp = p; + if (base == 16 && (*p == 'X' || *p == 'x')) { + p++; + } else if (base == 2 && (*p == 'B' || *p == 'b')) { + /* C23 standard supports "0B" and "0b" prefixes. */ + p++; + } else if (base == 0) { + if (*p == 'X' || *p == 'x') { + base = 16, p++; + } else if (*p == 'B' || *p == 'b') { + base = 2, p++; + } else { + base = 8; + } + } + } else if (base == 0) { + base = 10; + } + + cutoff = (is_neg) ? -(kLongMin / base) : kLongMax / base; + cutlim = (is_neg) ? -(kLongMin % base) : kLongMax % base; + + while (1) { + int c; + if (*p >= 'A') + c = ((*p - 'A') & (~('a' ^ 'A'))) + 10; + else if (*p <= '9') + c = *p - '0'; + else + break; + if (c < 0 || c >= base) break; + endp = ++p; + if (overflow) { + /* endptr should go forward and point to the non-digit character + * (of the given base); required by ANSI standard. */ + if (endptr) continue; + break; + } + if (n > cutoff || (n == cutoff && c > cutlim)) { + overflow = 1; + continue; + } + n = n * base + c; + } + + if (endptr) *endptr = (char*) endp; + + if (overflow) { + return ((is_neg) ? kLongMin : kLongMax); + } + + return (long) ((is_neg) ? -n : n); } |