scp_size_scp.pass.cpp (3058B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <strstream> 11 12 // class strstreambuf 13 14 // strstreambuf(signed char* gnext_arg, streamsize n, signed char* pbeg_arg = 0); 15 16 #include <strstream> 17 #include <cassert> 18 #include <cstring> 19 20 int main() 21 { 22 { 23 signed char buf[] = "abcd"; 24 std::strstreambuf sb(buf, sizeof(buf)); 25 assert(sb.sgetc() == 'a'); 26 assert(sb.snextc() == 'b'); 27 assert(sb.snextc() == 'c'); 28 assert(sb.snextc() == 'd'); 29 assert(sb.snextc() == 0); 30 assert(sb.snextc() == EOF); 31 } 32 { 33 signed char buf[] = "abcd"; 34 std::strstreambuf sb(buf, 0); 35 assert(sb.sgetc() == 'a'); 36 assert(sb.snextc() == 'b'); 37 assert(sb.snextc() == 'c'); 38 assert(sb.snextc() == 'd'); 39 assert(sb.snextc() == EOF); 40 } 41 { 42 signed char buf[] = "abcd"; 43 std::strstreambuf sb(buf, sizeof(buf), buf); 44 assert(sb.sgetc() == EOF); 45 assert(sb.sputc('e') == 'e'); 46 assert(sb.sputc('f') == 'f'); 47 assert(sb.sputc('g') == 'g'); 48 assert(sb.sputc('h') == 'h'); 49 assert(sb.sputc('i') == 'i'); 50 assert(sb.sputc('j') == EOF); 51 assert(sb.sgetc() == 'e'); 52 assert(sb.snextc() == 'f'); 53 assert(sb.snextc() == 'g'); 54 assert(sb.snextc() == 'h'); 55 assert(sb.snextc() == 'i'); 56 assert(sb.snextc() == EOF); 57 } 58 { 59 signed char buf[] = "abcd"; 60 std::strstreambuf sb(buf, 0, buf); 61 assert(sb.sgetc() == EOF); 62 assert(sb.sputc('e') == 'e'); 63 assert(sb.sputc('f') == 'f'); 64 assert(sb.sputc('g') == 'g'); 65 assert(sb.sputc('h') == 'h'); 66 assert(sb.sputc('i') == EOF); 67 assert(sb.sgetc() == 'e'); 68 assert(sb.snextc() == 'f'); 69 assert(sb.snextc() == 'g'); 70 assert(sb.snextc() == 'h'); 71 assert(sb.snextc() == EOF); 72 } 73 { 74 signed char buf[10] = "abcd"; 75 std::size_t s = std::strlen((char*)buf); 76 std::strstreambuf sb(buf, sizeof(buf) - s, buf + s); 77 assert(sb.sgetc() == 'a'); 78 assert(sb.snextc() == 'b'); 79 assert(sb.snextc() == 'c'); 80 assert(sb.snextc() == 'd'); 81 assert(sb.snextc() == EOF); 82 assert(sb.sputc('e') == 'e'); 83 assert(sb.sputc('f') == 'f'); 84 assert(sb.sputc('g') == 'g'); 85 assert(sb.sputc('h') == 'h'); 86 assert(sb.sputc('i') == 'i'); 87 assert(sb.sputc('j') == 'j'); 88 assert(sb.sputc('j') == EOF); 89 assert(sb.sgetc() == 'e'); 90 assert(sb.snextc() == 'f'); 91 assert(sb.snextc() == 'g'); 92 assert(sb.snextc() == 'h'); 93 assert(sb.snextc() == 'i'); 94 assert(sb.snextc() == 'j'); 95 assert(sb.snextc() == EOF); 96 } 97 }