460b3f59a9
git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@7001 212acab6-be3b-0410-9dea-997c60f758d6
108 lines
2.4 KiB
C++
108 lines
2.4 KiB
C++
/*
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** JNetLib
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** Copyright (C) 2000-2001 Nullsoft, Inc.
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** Author: Justin Frankel
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** File: util.cpp - JNL implementation of basic network utilities
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** License: see License.txt
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**
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** Unicode support by Jim Park -- 08/24/2007
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** Keep everything here strictly ANSI. No TCHAR style stuff.
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*/
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#include <windows.h>
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#include "util.h"
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int my_atoi(char *s)
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{
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int sign=0;
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int v=0;
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if (*s == '-') { s++; sign++; }
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for (;;)
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{
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int c=*s++ - '0';
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if (c < 0 || c > 9) break;
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v*=10;
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v+=c;
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}
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if (sign) return -(int) v;
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return (int)v;
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}
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__int64 myatoi64(const char *s)
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{
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__int64 v=0;
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int sign=0;
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if (*s == '-')
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sign++;
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else
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s--;
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for (;;)
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{
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int c=*(++s) - '0';
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if (c < 0 || c > 9) break;
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v*=10;
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v+=c;
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}
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if (sign)
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v = -v;
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return v;
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}
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void myitoa64(__int64 i, char *buffer)
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{
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char buf[128], *b = buf;
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if (i < 0)
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{
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*(buffer++) = '-';
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i = -i;
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}
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if (i == 0) *(buffer++) = '0';
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else
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{
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while (i > 0)
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{
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*(b++) = '0' + ((char) (i%10));
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i /= 10;
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}
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while (b > buf) *(buffer++) = *(--b);
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}
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*buffer = 0;
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}
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// Visual Studio 2015 (CLv19 x86) and some older versions of CLv14 x64 will optimize
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// our loop into a direct call to _memset and this fails to link because we don't use the CRT
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#if defined(_MSC_VER) && _MSC_VER+0 >= 1400
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# if defined(_MSC_FULL_VER) && _MSC_FULL_VER+0 >= 140050727
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# include <intrin.h>
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# else
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EXTERN_C void __stosb(BYTE*,BYTE,size_t);
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# endif //~ _MSC_FULL_VER >= 140050727
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# if defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) // __stosb not available under _M_ARM nor _M_ARM64
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# pragma intrinsic(__stosb)
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# define CRTINTRINSIC_memset(p,c,s) __stosb((BYTE*)(p),(BYTE)(c),(s))
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# elif defined(_M_ARM) || defined(_M_ARM64) // For _MSC_VER=1914 (VS 15.7.27703.2026/CL 19.14.26430)
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EXTERN_C void* __cdecl memset(void *d, int v, size_t l) { char *p=(char*)d; while (l-- > 0) *p++=v; return d; }
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# pragma function(memset)
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# endif
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#endif //~ _MSC_VER
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void mini_memset(void *o,char i,int l)
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{
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#ifdef CRTINTRINSIC_memset
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CRTINTRINSIC_memset(o, i, l);
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#else
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char *oo=(char*)o;
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while (l-- > 0) *oo++=i;
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#endif
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}
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void mini_memcpy(void *o,void*i,int l)
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{
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char *oo=(char*)o;
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char *ii=(char*)i;
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while (l-- > 0) *oo++=*ii++;
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}
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