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utils.h
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utils.h
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// utils.h
// ipdbtools
//
// Created by Dr. Rolf Jansen on 2018-05-08.
// Copyright © 2018 Dr. Rolf Jansen. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
// OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
#define no_error 0
#ifndef false
#define false ((boolean)0)
#endif
#ifndef true
#define true ((boolean)1)
#endif
typedef int boolean;
typedef long long llong;
typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long long ullong;
typedef unsigned int utf8;
typedef unsigned int utf32;
typedef void *opaque;
typedef enum
{
undefined = -1,
invalid = false,
valid = true
} tris;
static inline double sqr(double x)
{
return x*x;
}
static inline long double sqrl(long double x)
{
return x*x;
}
static inline int mini(int a, int b)
{
return (a < b) ? a : b;
}
static inline int maxi(int a, int b)
{
return (a > b) ? a : b;
}
static inline double minf(double a, double b)
{
return (a < b) ? a : b;
}
static inline double maxf(double a, double b)
{
return (a > b) ? a : b;
}
static inline void swap(double *a, double *b)
{
double c = *a;
*a = *b;
*b = c;
}
static inline void swapMinMax(double *min, double *max)
{
if (*min > *max)
swap(min, max);
}
static inline void swapf(float *a, float *b)
{
float c = *a;
*a = *b;
*b = c;
}
static inline boolean swapMinMaxf(float *min, float *max)
{
if (*min <= *max)
return false;
else
{
swapf(min, max);
return true;
}
}
static inline int sign(double x)
{
if (x < 0)
return -1;
else if (x > 0)
return 1;
else
return 0;
}
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
// PickXXX-Routine are for picking data out of or
// the PostgreSQL database that tranfers binary data
// in Network Byte Order, that is big endian.
// i386 machines operate on data in little endian
// byte order, therefore byte swapping is necessary.
#define PickInt(x) SwapInt32(*(int32_t *)(x))
#define PickInt64(x) SwapInt64(*(int64_t *)(x))
#define PickDouble(x) SwapDouble(*(double *)(x))
#define MapShort(x) SwapInt16(x)
#define MapInt(x) SwapInt32(x)
#define MapInt64(x) SwapInt64(x)
#define MapDouble(x) SwapDouble(x)
#define TwoChars(x) (uint16_t)SwapInt16(*(uint16_t *)(x))
#define ThreeChars(x) (uint32_t)SwapTri24(*(uint32_t *)(x))
#define FourChars(x) (uint32_t)SwapInt32(*(uint32_t *)(x))
#define b2_0 0
#define b2_1 1
#define b4_0 0
#define b4_1 1
#define b4_2 2
#define b4_3 3
#define b8_0 0
#define b8_1 1
#define b8_2 2
#define b8_3 3
#define b8_4 4
#define b8_5 5
#define b8_6 6
#define b8_7 7
#if (defined(__i386__) || defined(__x86_64__)) && defined(__GNUC__)
static inline uint16_t SwapInt16(uint16_t x)
{
__asm__("rolw $8,%0" : "+q" (x));
return x;
}
static inline uint32_t SwapInt32(uint32_t x)
{
__asm__("bswapl %0" : "+q" (x));
return x;
}
#else
static inline uint16_t SwapInt16(uint16_t x)
{
uint16_t z;
char *p = (char *)&x;
char *q = (char *)&z;
q[0] = p[1];
q[1] = p[0];
return z;
}
static inline uint32_t SwapInt32(uint32_t x)
{
uint32_t z;
char *p = (char *)&x;
char *q = (char *)&z;
q[0] = p[3];
q[1] = p[2];
q[2] = p[1];
q[3] = p[0];
return z;
}
#endif
static inline uint32_t SwapTri24(uint32_t x)
{
uint32_t z;
char *p = (char *)&x;
char *q = (char *)&z;
q[0] = p[2];
q[1] = p[1];
q[2] = p[0];
q[3] = 0;
return z;
}
#if defined(__x86_64__) && defined(__GNUC__)
static inline uint64_t SwapInt64(uint64_t x)
{
__asm__("bswapq %0" : "+q" (x));
return x;
}
#else
static inline uint64_t SwapInt64(uint64_t x)
{
uint64_t z;
char *p = (char *)&x;
char *q = (char *)&z;
q[0] = p[7];
q[1] = p[6];
q[2] = p[5];
q[3] = p[4];
q[4] = p[3];
q[5] = p[2];
q[6] = p[1];
q[7] = p[0];
return z;
}
#endif
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
// ppc machines operate on data in big endian
// byte order, therefore NO byte swapping is necessary.
#define PickInt(x) *(int32_t *)(x)
#define PickInt64(x) *(int64_t *)(x)
#define PickDouble(x) *(double *)(x)
#define MapShort(x) (x)
#define MapInt(x) (x)
#define MapInt64(x) (x)
#define MapDouble(x) (x)
#define TwoChars(x) *(uint16_t *)(x)
#define ThreeChars(x) *(uint32_t *)(x) >> 8
#define FourChars(x) *(uint32_t *)(x)
#define b2_0 1
#define b2_1 0
#define b4_0 3
#define b4_1 2
#define b4_2 1
#define b4_3 0
#define b8_0 7
#define b8_1 6
#define b8_2 5
#define b8_3 4
#define b8_4 3
#define b8_5 2
#define b8_6 1
#define b8_7 0
#if defined(__ppc__) && defined(__GNUC__)
static inline uint16_t SwapInt16(uint16_t x)
{
uint16_t z;
__asm__("lhbrx %0,0,%1" : "=r" (z) : "r" (&x), "m" (x));
return z;
}
#else
static inline uint16_t SwapInt16(uint16_t x)
{
uint16_t z;
char *p = (char *)&x;
char *q = (char *)&z;
q[0] = p[1];
q[1] = p[0];
return z;
}
#endif
static inline uint32_t SwapInt32(uint32_t x)
{
uint32_t z;
char *p = (char *)&x;
char *q = (char *)&z;
q[0] = p[3];
q[1] = p[2];
q[2] = p[1];
q[3] = p[0];
return z;
}
static inline uint64_t SwapInt64(uint64_t x)
{
uint64_t z;
char *p = (char *)&x;
char *q = (char *)&z;
q[0] = p[7];
q[1] = p[6];
q[2] = p[5];
q[3] = p[4];
q[4] = p[3];
q[5] = p[2];
q[6] = p[1];
q[7] = p[0];
return z;
}
#endif
static inline double SwapDouble(double x)
{
double z;
char *p = (char *)&x;
char *q = (char *)&z;
q[0] = p[7];
q[1] = p[6];
q[2] = p[5];
q[3] = p[4];
q[4] = p[3];
q[5] = p[2];
q[6] = p[1];
q[7] = p[0];
return z;
}
static inline char LoChar(char c)
{
return ('A' <= c && c <= 'Z') ? c + 0x20 : c;
}
static inline char UpChar(char c)
{
return ('a' <= c && c <= 'z') ? c - 0x20 : c;
}
static inline uint32_t FourLoChars(char c[4])
{
char C[4] = {LoChar(c[0]), LoChar(c[1]), LoChar(c[2]), LoChar(c[3])};
return MapInt(*(uint32_t *)C);
}
static inline uint32_t FourUpChars(char c[4])
{
char C[4] = {UpChar(c[0]), UpChar(c[1]), UpChar(c[2]), UpChar(c[3])};
return MapInt(*(uint32_t *)C);
}
static inline char *lowercase(char *s, int n)
{
if (s)
{
char c, *p = s;
for (int i = 0; i < n && (c = *p); i++)
if ('A' <= c && c <= 'Z')
*p++ = c + 0x20;
else
p++;
}
return s;
}
static inline char *uppercase(char *s, int n)
{
if (s)
{
char c, *p = s;
for (int i = 0; i < n && (c = *p); i++)
if ('a' <= c && c <= 'z')
*p++ = c - 0x20;
else
p++;
}
return s;
}
#if defined(__x86_64__)
#include <x86intrin.h>
static const __m128i nul16 = {0x0000000000000000ULL, 0x0000000000000000ULL}; // 16 bytes with nul
static const __m128i lfd16 = {0x0A0A0A0A0A0A0A0AULL, 0x0A0A0A0A0A0A0A0AULL}; // 16 bytes with line feed '\n'
static const __m128i vtt16 = {0x0B0B0B0B0B0B0B0BULL, 0x0B0B0B0B0B0B0B0BULL}; // 16 bytes with vertical tabs '\v'
static const __m128i col16 = {0x3A3A3A3A3A3A3A3AULL, 0x3A3A3A3A3A3A3A3AULL}; // 16 bytes with colon ':'
static const __m128i grt16 = {0x3E3E3E3E3E3E3E3EULL, 0x3E3E3E3E3E3E3E3EULL}; // 16 bytes with greater sign '>'
static const __m128i vtl16 = {0x7C7C7C7C7C7C7C7CULL, 0x7C7C7C7C7C7C7C7CULL}; // 16 bytes with vertical line '|'
static const __m128i dot16 = {0x2E2E2E2E2E2E2E2EULL, 0x2E2E2E2E2E2E2E2EULL}; // 16 bytes with dots '.'
static const __m128i sls16 = {0x2F2F2F2F2F2F2F2FULL, 0x2F2F2F2F2F2F2F2FULL}; // 16 bytes with slashes '/'
static const __m128i amp16 = {0x2626262626262626ULL, 0x2626262626262626ULL}; // 16 bytes with ampersand '&'
static const __m128i equ16 = {0x3D3D3D3D3D3D3D3DULL, 0x3D3D3D3D3D3D3D3DULL}; // 16 bytes with equal signs '='
static const __m128i blk16 = {0x2020202020202020ULL, 0x2020202020202020ULL}; // 16 bytes with inner blank limit
static const __m128i obl16 = {0x2121212121212121ULL, 0x2121212121212121ULL}; // 16 bytes with outer blank limit
// Drop-in replacement for strlen() and memcpy(), utilizing some builtin SSSE3 instructions
static inline int strvlen(const char *str)
{
if (!str || !*str)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)str), nul16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)str%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&str[len]), nul16)))
return len + __builtin_ctz(bmask);
}
static inline void memvcpy(void *dst, const void *src, size_t n)
{
size_t k;
switch (n)
{
default:
if ((intptr_t)dst&0xF || (intptr_t)src&0xF)
for (k = 0; k < n>>4<<1; k += 2)
((uint64_t *)dst)[k] = ((uint64_t *)src)[k], ((uint64_t *)dst)[k+1] = ((uint64_t *)src)[k+1];
else
for (k = 0; k < n>>4; k++)
_mm_store_si128(&((__m128i *)dst)[k], _mm_load_si128(&((__m128i *)src)[k]));
case 8 ... 15:
if ((k = n>>4<<1) < n>>3)
((uint64_t *)dst)[k] = ((uint64_t *)src)[k];
case 4 ... 7:
if ((k = n>>3<<1) < n>>2)
((uint32_t *)dst)[k] = ((uint32_t *)src)[k];
case 2 ... 3:
if ((k = n>>2<<1) < n>>1)
((uint16_t *)dst)[k] = ((uint16_t *)src)[k];
case 1:
if ((k = n>>1<<1) < n)
(( uint8_t *)dst)[k] = (( uint8_t *)src)[k];
case 0:
;
}
}
static inline int linelen(const char *line)
{
if (!line || !*line)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)line), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)line), lfd16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)line%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&line[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&line[len]), lfd16)))
return len + __builtin_ctz(bmask);
}
static inline int sectlen(const char *sect)
{
if (!sect || !*sect)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)sect), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)sect), vtt16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)sect%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)§[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)§[len]), vtt16)))
return len + __builtin_ctz(bmask);
}
static inline int collen(const char *col)
{
if (!col || !*col)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)col), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)col), col16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)col%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&col[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&col[len]), col16)))
return len + __builtin_ctz(bmask);
}
static inline int taglen(const char *tag)
{
if (!tag || !*tag)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)tag), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)tag), grt16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)tag%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&tag[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&tag[len]), grt16)))
return len + __builtin_ctz(bmask);
}
static inline int fieldlen(const char *field)
{
if (!field || !*field)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)field), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)field), vtl16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)field%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&field[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&field[len]), vtl16)))
return len + __builtin_ctz(bmask);
}
static inline int domlen(const char *domain)
{
if (!domain || !*domain)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)domain), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)domain), dot16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)domain%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&domain[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&domain[len]), dot16)))
return len + __builtin_ctz(bmask);
}
static inline int segmlen(const char *segm)
{
if (!segm || !*segm)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)segm), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)segm), sls16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)segm%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&segm[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&segm[len]), sls16)))
return len + __builtin_ctz(bmask);
}
static inline int vdeflen(const char *vardef)
{
if (!vardef || !*vardef)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)vardef), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)vardef), amp16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)vardef%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&vardef[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&vardef[len]), amp16)))
return len + __builtin_ctz(bmask);
}
static inline int vnamlen(const char *varname)
{
if (!varname || !*varname)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)varname), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)varname), equ16)))
return __builtin_ctz(bmask);
for (int len = 16 - (intptr_t)varname%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&varname[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&varname[len]), equ16)))
return len + __builtin_ctz(bmask);
}
static inline int wordlen(const char *word)
{
if (!word || !*word)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(blk16, _mm_max_epu8(blk16, _mm_loadu_si128((__m128i *)word)))))
return __builtin_ctz(bmask); // ^^^^^^^ unsigned comparison (a >= b) is identical to a == maxu(a, b) ^^^^^^^
for (int len = 16 - (intptr_t)word%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(blk16, _mm_max_epu8(blk16, _mm_load_si128((__m128i *)&word[len])))))
return len + __builtin_ctz(bmask);
}
static inline int blanklen(const char *blank)
{
if (!blank || !*blank)
return 0;
unsigned bmask;
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_loadu_si128((__m128i *)blank), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(obl16, _mm_min_epu8(obl16, _mm_loadu_si128((__m128i *)blank)))))
return __builtin_ctz(bmask); // ^^^^^^^ unsigned comparison (a <= b) is identical to a == minu(a, b) ^^^^^^^
for (int len = 16 - (intptr_t)blank%16;; len += 16)
if (bmask = (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(_mm_load_si128((__m128i *)&blank[len]), nul16))
| (unsigned)_mm_movemask_epi8(_mm_cmpeq_epi8(obl16, _mm_min_epu8(obl16, _mm_load_si128((__m128i *)&blank[len])))))
return len + __builtin_ctz(bmask);
}
// String copying from src to dst.
// m: Max. capacity of dst, including the final nul.
// A value of 0 would indicate that the capacity of dst matches the size of src (including nul)
// l: On entry, src length or 0, on exit, the length of src, maybe NULL
// Returns the length of the resulting string in dst.
static inline int strmlcpy(char *dst, const char *src, int m, int *l)
{
int k, n;
if (l)
{
if (!*l)
*l = strvlen(src);
k = *l;
}
else
k = strvlen(src);
if (!m)
n = k;
else
n = (k < m) ? k : m-1;
switch (n)
{
default:
if ((intptr_t)dst&0xF || (intptr_t)src&0xF)
for (k = 0; k < n>>4<<1; k += 2)
((uint64_t *)dst)[k] = ((uint64_t *)src)[k], ((uint64_t *)dst)[k+1] = ((uint64_t *)src)[k+1];
else
for (k = 0; k < n>>4; k++)
_mm_store_si128(&((__m128i *)dst)[k], _mm_load_si128(&((__m128i *)src)[k]));
case 8 ... 15:
if ((k = n>>4<<1) < n>>3)
((uint64_t *)dst)[k] = ((uint64_t *)src)[k];
case 4 ... 7:
if ((k = n>>3<<1) < n>>2)
((uint32_t *)dst)[k] = ((uint32_t *)src)[k];
case 2 ... 3:
if ((k = n>>2<<1) < n>>1)
((uint16_t *)dst)[k] = ((uint16_t *)src)[k];
case 1:
if ((k = n>>1<<1) < n)
dst[k] = src[k];
case 0:
;
}
dst[n] = '\0';
return n;
}
#else
#define strvlen(s) (int)strlen(s)
#define memvcpy(d,s,n) memcpy(d,s,n)
static inline int linelen(const char *line)
{
if (!line || !*line)
return 0;
int l;
for (l = 0; line[l] && line[l] != '\n'; l++)
;
return l;
}
static inline int sectlen(const char *sect)
{
if (!sect || !*sect)
return 0;
int l;
for (l = 0; sect[l] && sect[l] != '\v'; l++)
;
return l;
}
static inline int collen(const char *col)
{
if (!col || !*col)
return 0;
int l;
for (l = 0; col[l] && col[l] != ':'; l++)
;
return l;
}
static inline int taglen(const char *tag)
{
if (!tag || !*tag)
return 0;
int l;
for (l = 0; tag[l] && tag[l] != '>'; l++)
;
return l;
}
static inline int fieldlen(const char *field)
{
if (!field || !*field)
return 0;
int l;
for (l = 0; field[l] && field[l] != '|'; l++)
;
return l;
}
static inline int domlen(const char *domain)
{
if (!domain || !*domain)
return 0;
int l;
for (l = 0; domain[l] && domain[l] != '.'; l++)
;
return l;
}
static inline int segmlen(const char *segm)
{
if (!segm || !*segm)
return 0;
int l;
for (l = 0; segm[l] && segm[l] != '/'; l++)
;
return l;
}
static inline int vdeflen(const char *vardef)
{
if (!vardef || !*vardef)
return 0;
int l;
for (l = 0; vardef[l] && vardef[l] != '&'; l++)
;
return l;
}
static inline int vnamlen(const char *varname)
{
if (!varname || !*varname)
return 0;
int l;
for (l = 0; varname[l] && varname[l] != '='; l++)
;
return l;
}
static inline int wordlen(const char *word)
{
if (!word || !*word)
return 0;
int l;
for (l = 0; (uint8_t)word[l] > ' '; l++)
;
return l;
}
static inline int blanklen(const char *blank)
{
if (!blank || !*blank)
return 0;
int l;
for (l = 0; blank[l] && (uint8_t)blank[l] <= ' '; l++)
;
return l;
}
// String copying from src to dst.
// m: Max. capacity of dst, including the final nul.
// A value of 0 would indicate that the capacity of dst matches the size of src (including nul)
// l: On entry, src length or 0, on exit, the length of src, maybe NULL
// Returns the length of the resulting string in dst.
static inline int strmlcpy(char *dst, const char *src, int m, int *l)
{
int k, n;
if (l)
{
if (!*l)
*l = (int)strlen(src);
k = *l;
}
else
k = (int)strlen(src);
if (!m)
n = k;
else
n = (k < m) ? k : m-1;
strlcpy(dst, src, n+1);
return n;
}
#endif
// String concat to dst with variable number of src/len pairs, whereby each len
// serves as the l parameter in strmlcpy(), i.e. strmlcpy(dst, src, ml, &len)
// m: Max. capacity of dst, including the final nul.
// If m == 0, then the sum of the length of all src strings is returned in l - nothing is copied though.
// l: On entry, offset into dst or -1, when -1, the offset is the end of the initial string in dst
// On exit, the length of the total concat, even if it would not fit into dst, maybe NULL.
// Returns the length of the resulting string in dst.
int strmlcat(char *dst, int m, int *l, ...);
static inline boolean cmp2(const void *a, const void *b)
{
return *(uint16_t *)a == *(uint16_t *)b;
}
static inline boolean cmp3(const void *a, const void *b)
{
return *(uint8_t *)a == *(uint8_t *)b && cmp2((uint8_t *)a+1, (uint8_t *)b+1);
}
static inline boolean cmp4(const void *a, const void *b)
{
return *(uint32_t *)a == *(uint32_t *)b;
}
static inline boolean cmp5(const void *a, const void *b)
{
return *(uint8_t *)a == *(uint8_t *)b && cmp4((uint8_t *)a+1, (uint8_t *)b+1);
}
static inline boolean cmp6(const void *a, const void *b)
{
return cmp2(a, b) && cmp4((uint8_t *)a+2, (uint8_t *)b+2);
}
static inline boolean cmp7(const void *a, const void *b)
{
return cmp3(a, b) && cmp4((uint8_t *)a+3, (uint8_t *)b+3);
}
static inline boolean cmp8(const void *a, const void *b)
{
#if !defined(__arm__)
return *(uint64_t *)a == *(uint64_t *)b;
#else
return cmp4(a, b) && cmp4((uint8_t *)a+4, (uint8_t *)b+4);
#endif
}
static inline boolean cmp9(const void *a, const void *b)
{
return *(uint8_t *)a == *(uint8_t *)b && cmp8((uint8_t *)a+1, (uint8_t *)b+1);
}
static inline boolean cmp10(const void *a, const void *b)
{
return cmp2(a, b) && cmp8((uint8_t *)a+2, (uint8_t *)b+2);
}
static inline boolean cmp11(const void *a, const void *b)
{
return cmp3(a, b) && cmp8((uint8_t *)a+3, (uint8_t *)b+3);
}
static inline boolean cmp12(const void *a, const void *b)
{
return cmp4(a, b) && cmp8((uint8_t *)a+4, (uint8_t *)b+4);
}
static inline boolean cmp13(const void *a, const void *b)
{
return cmp5(a, b) && cmp8((uint8_t *)a+5, (uint8_t *)b+5);
}
static inline boolean cmp14(const void *a, const void *b)
{
return cmp6(a, b) && cmp8((uint8_t *)a+6, (uint8_t *)b+6);
}
static inline boolean cmp15(const void *a, const void *b)
{
return cmp7(a, b) && cmp8((uint8_t *)a+7, (uint8_t *)b+7);
}
static inline boolean cmp16(const void *a, const void *b)
{
return cmp8(a, b) && cmp8((uint8_t *)a+8, (uint8_t *)b+8);
}
static inline void cpy2(void *a, const void *b)
{
*(uint16_t *)a = *(uint16_t *)b;
}
static inline void cpy3(void *a, const void *b)
{
cpy2(a, b), *(uint8_t *)((uint8_t *)a+2) = *(uint8_t *)((uint8_t *)b+2);
}
static inline void cpy4(void *a, const void *b)
{
*(uint32_t *)a = *(uint32_t *)b;
}
static inline void cpy5(void *a, const void *b)
{
cpy4(a, b), *(uint8_t *)((uint8_t *)a+4) = *(uint8_t *)((uint8_t *)b+4);
}
static inline void cpy6(void *a, const void *b)
{
cpy4(a, b), cpy2((uint8_t *)a+4, (uint8_t *)b+4);
}
static inline void cpy7(void *a, const void *b)
{
cpy4(a, b), cpy3((uint8_t *)a+4, (uint8_t *)b+4);
}
static inline void cpy8(void *a, const void *b)
{
#if !defined(__arm__)
*(uint64_t *)a = *(uint64_t *)b;
#else
cpy4(a, b), cpy4((uint8_t *)a+4, (uint8_t *)b+4);
#endif
}
static inline void cpy9(void *a, const void *b)
{
cpy8(a, b), *(uint8_t *)((uint8_t *)a+8) = *(uint8_t *)((uint8_t *)b+8);
}