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1267
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1 /* c-std.h: the first header files. |
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2 |
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3 Copyright (C) 1992, 93, 94 Free Software Foundation, Inc. |
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4 |
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5 This program is free software; you can redistribute it and/or modify |
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6 it under the terms of the GNU General Public License as published by |
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7 the Free Software Foundation; either version 2, or (at your option) |
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8 any later version. |
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9 |
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10 This program is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 GNU General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU General Public License |
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16 along with this program; if not, write to the Free Software |
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1315
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17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
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1267
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18 |
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19 #ifndef KPATHSEA_C_STD_H |
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20 #define KPATHSEA_C_STD_H |
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21 |
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22 /* Header files that essentially all of our sources need, and |
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23 that all implementations have. We include these first, to help with |
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24 NULL being defined multiple times. */ |
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25 #include <math.h> |
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26 #include <stdio.h> |
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27 |
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28 /* Be sure we have constants from <unistd.h>. */ |
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29 #include <kpathsea/c-unistd.h> |
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30 |
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31 #if HAVE_STDLIB_H |
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32 #include <stdlib.h> |
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33 /* Include <stdlib.h> before <stddef.h>, to help avoid NULL |
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34 redefinitions on some systems. (We don't include <stddef.h> |
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35 ourselves any more, but FYI.) */ |
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36 #else |
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37 /* It's impossible to say for sure what the system will deign to put in |
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38 <stdlib.h>, but let's hope it's at least these. */ |
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39 extern char *getenv (); |
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40 |
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41 #ifndef ALLOC_RETURN_TYPE |
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42 #ifdef DOS |
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43 #define ALLOC_RETURN_TYPE void |
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44 #else |
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45 #define ALLOC_RETURN_TYPE char |
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46 #endif /* not DOS */ |
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47 #endif /* not ALLOC_RETURN_TYPE */ |
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48 |
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49 #ifndef _MALLOC_INTERNAL |
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50 /* Don't bother to declare these if we are compiling gmalloc.c itself. */ |
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51 extern ALLOC_RETURN_TYPE *calloc (), *malloc (), *realloc (); |
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52 #endif |
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53 |
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54 #endif /* not STDC_HEADERS */ |
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55 |
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56 /* SunOS 4.1.1 gets STDC_HEADERS defined, but it doesn't provide |
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57 EXIT_FAILURE. So far no system has defined one of EXIT_FAILURE and |
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58 EXIT_SUCCESS without the other. */ |
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59 #ifndef EXIT_SUCCESS |
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60 #ifdef VMS |
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61 #define EXIT_SUCCESS 1 |
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62 #define EXIT_FAILURE 0 |
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63 #else |
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64 #define EXIT_SUCCESS 0 |
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65 #define EXIT_FAILURE 1 |
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66 #endif |
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67 #endif /* not EXIT_SUCCESS */ |
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68 |
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69 /* strchr vs. index, memcpy vs. bcopy, etc. */ |
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70 #include <kpathsea/c-memstr.h> |
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71 |
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72 /* Error numbers and errno declaration. */ |
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73 #include <kpathsea/c-errno.h> |
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74 |
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75 /* Numeric minima and maxima. */ |
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76 #include <kpathsea/c-minmax.h> |
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77 |
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78 /* Assertions are too useful to not make generally available. */ |
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79 #ifdef HAVE_ASSERT_H |
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80 #include <assert.h> |
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81 #else |
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82 #define assert(expr) /* as nothing */ |
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83 #endif |
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84 |
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85 #ifdef VMS |
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86 #include <unixlib.h> |
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87 #include <unixio.h> |
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88 #else |
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89 /* `popen' and `pclose' are part of POSIX.2, not POSIX.1. So |
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90 STDC_HEADERS isn't enough. */ |
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91 extern FILE *popen (); |
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92 extern int pclose (); |
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93 #endif |
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94 |
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95 #ifndef hypot |
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96 /* hypot appears not to have made it into POSIX.2, even. */ |
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97 extern double hypot (); |
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98 #endif |
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99 |
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100 #endif /* not KPATHSEA_C_STD_H */ |
