MPLAB C Compiler for PIC24 MCUs and dsPIC DSCs ... - Microchip

More documents

Recommendations

Info

16-Bit C Compiler User’s Guide N negative integer implicitly converted to unsigned type A negative integer constant value appears in the source code, but the number cannot be represented as a signed int; therefore, the compiler automatically treats it as an unsigned int. nested extern declaration of ‘identifier’ There are nested extern definitions of the specified identifier. no newline at end of file The last line of the source file is not terminated with a newline character. no previous declaration for ‘identifier’ When compiling with the -Wmissing-declarations command-line option, the compiler ensures that functions are declared before they are defined. In this case, a function definition was encountered without a preceding function declaration. no previous prototype for ‘identifier’ When compiling with the -Wmissing-prototypes command-line option, the compiler ensures that function prototypes are specified for all functions. In this case, a function definition was encountered without a preceding function prototype. no semicolon at end of struct or union A semicolon is missing at the end of the structure or union declaration. non-ISO-standard escape sequence, ‘seq’ ‘seq’ is ‘\e’ or ‘\E’ and is an extension to the ISO standard. The sequence can be used in a string or character constant and stands for the ASCII character . non-static declaration for ‘identifier’ follows static The specified identifier was declared non-static after it was previously declared as static. ‘noreturn’ function does return A function declared with the noreturn attribute returns. This is inconsistent. ‘noreturn’ function returns non-void value A function declared with the noreturn attribute returns a non-void value. This is inconsistent. null format string When checking the argument list of a call to printf, scanf, etc., the compiler found that the format string was missing. O octal escape sequence out of range The octal sequence must be less than 400 in octal (256 in decimal). output constraint ‘constraint’ for operand n is not at the beginning Output constraints in extended asm should be at the beginning. overflow in constant expression The constant expression has exceeded the range of representable values for its type. overflow in implicit constant conversion An implicit constant conversion resulted in a number that cannot be represented as a signed int; therefore, the compiler automatically treats it as an unsigned int. DS51284H-page 194 © 2008 Microchip Technology Inc.
P Diagnostics parameter has incomplete type A function parameter has an incomplete type. parameter names (without types) in function declaration The function declaration lists the names of the parameters but not their types. parameter points to incomplete type A function parameter points to an incomplete type. parameter ‘identifier’ points to incomplete type The specified function parameter points to an incomplete type. passing arg ‘number’ of ‘name’ as complex rather than floating due to prototype The prototype declares argument ‘number’ as a complex, but a float value is used so the compiler converts to a complex to agree with the prototype. passing arg ‘number’ of ‘name’ as complex rather than integer due to prototype The prototype declares argument ‘number’ as a complex, but an integer value is used so the compiler converts to a complex to agree with the prototype. passing arg ‘number’ of ‘name’ as floating rather than complex due to prototype The prototype declares argument ‘number’ as a float, but a complex value is used so the compiler converts to a float to agree with the prototype. passing arg ‘number’ of ‘name’ as ‘float’ rather than ‘double’ due to prototype The prototype declares argument ‘number’ as a float, but a double value is used so the compiler converts to a float to agree with the prototype. passing arg ‘number’ of ‘name’ as floating rather than integer due to prototype The prototype declares argument ‘number’ as a float, but an integer value is used so the compiler converts to a float to agree with the prototype. passing arg ‘number’ of ‘name’ as integer rather than complex due to prototype The prototype declares argument ‘number’ as an integer, but a complex value is used so the compiler converts to an integer to agree with the prototype. passing arg ‘number’ of ‘name’ as integer rather than floating due to prototype The prototype declares argument ‘number’ as an integer, but a float value is used so the compiler converts to an integer to agree with the prototype. pointer of type ‘void *’ used in arithmetic A pointer of type ‘void’ has no size and should not be used in arithmetic. pointer to a function used in arithmetic A pointer to a function should not be used in arithmetic. previous declaration of ‘identifier’ This warning message appears in conjunction with another warning message. The previous message identifies the location of the suspect code. This message identifies the first declaration or definition of the identifier. previous implicit declaration of ‘identifier’ This warning message appears in conjunction with the warning message “type mismatch with previous implicit declaration”. It locates the implicit declaration of the identifier that conflicts with the explicit declaration. © 2008 Microchip Technology Inc. DS51284H-page 195
Page 1 and 2:
MPLAB ® C COMPILER FOR PIC24 MCUs
Page 3 and 4:
Page 5 and 6:
Table of Contents A.5 Identifiers .
Page 7 and 8:
INTRODUCTION MPLAB ® C COMPILER FO
Page 9 and 10:
CONVENTIONS USED IN THIS GUIDE The
Page 11 and 12:
THE MICROCHIP WEB SITE Preface C Re
Page 13 and 14:
1.1 INTRODUCTION 1.2 HIGHLIGHTS MPL
Page 15 and 16:
1.5 COMPILER FEATURE SET Compiler O
Page 17 and 18:
Page 19 and 20:
Differences Between 16-Bit Device C
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Using the Compiler on the Command L
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
3.6 ENVIRONMENT VARIABLES Using the
Page 67 and 68:
Page 69 and 70:
4.1 INTRODUCTION 4.2 HIGHLIGHTS 4.3
Page 71 and 72:
4.5 MEMORY SPACES Run Time Environm
Page 73 and 74:
Run Time Environment 1. It is possi
Page 75 and 76:
4.8 SOFTWARE STACK Run Time Environ
Page 77 and 78:
FIGURE 4-2: CALL OR RCALL Stack gro
Page 79 and 80:
4.11 FUNCTION CALL CONVENTIONS Run
Page 81 and 82:
Run Time Environment The compiler a
Page 83 and 84:
4.14.2 String Literals as Arguments
Page 85 and 86:
Page 87 and 88:
6.1 INTRODUCTION MPLAB ® C COMPILE
Page 89 and 90:
6.3 PMP POINTERS Additional C Point
Page 91 and 92:
6.4 EXTERNAL POINTERS 6.3.3 Define
Page 93 and 94:
ead_external16 Additional C Pointer
Page 95 and 96:
Additional C Pointer Types } else {
Page 97 and 98:
Page 99 and 100:
7.5 USING SFRS Device Support Files
Page 101 and 102:
7.6 USING MACROS Device Support Fil
Page 103 and 104:
EXAMPLE 7-2: EEDATA ACCESS VIA PSV
Page 105 and 106:
Page 107 and 108:
Interrupts When using the interrupt
Page 109 and 110:
8.4.1 dsPIC30F DSCs (Non-SMPS) Inte
Page 111 and 112:
8.4.3 PIC24F MCUs Interrupt Vectors
Page 113 and 114:
Interrupts TABLE 8-3: INTERRUPT VEC
Page 115 and 116:
Interrupts TABLE 8-4: INTERRUPT VEC
Page 117 and 118:
85 _Interrupt85 _AltInterrupt85 Res
Page 119 and 120:
8.8 ENABLING/DISABLING INTERRUPTS I
Page 121 and 122:
Interrupts 2. Unsafe: read bar inte
Page 123 and 124:
LATGbits.LATG2 = 0; /* No problem l
Page 125 and 126:
Page 127 and 128:
Mixing Assembly Language and C Modu
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
A.5 IDENTIFIERS A.6 CHARACTERS Impl
Page 139 and 140:
Implementation-Defined Behavior The
Page 141 and 142:
A.15 PREPROCESSING DIRECTIVES Imple
Page 143 and 144:
A.17 SIGNALS A.18 STREAMS AND FILES
Page 145 and 146:
A.24 GETENV A.25 SYSTEM A.26 STRERR
Page 147 and 148:
B.1 INTRODUCTION MPLAB ® C COMPILE
Page 149 and 150: __builtin_btg Built-in Functions De
Page 151 and 152: __builtin_clr_prefetch Argument: xp
Page 153 and 154: __builtin_dmaoffset Built-in Functi
Page 155 and 156: __builtin_fbcl Built-in Functions A
Page 157 and 158: __builtin_modsd Argument: dividend
Page 159 and 160: __builtin_mpy Error Messages An err
Page 161 and 162: __builtin_mulss Built-in Functions
Page 163 and 164: __builtin_psvoffset Built-in Functi
Page 165 and 166: __builtin_subab Built-in Functions
Page 167 and 168: __builtin_tblwth Built-in Functions
Page 169 and 170: C.1 INTRODUCTION C.2 ERRORS MPLAB
Page 171 and 172: Diagnostics ambiguous abbreviation
Page 173 and 174: Diagnostics cast specifies function
Page 175 and 176: F Diagnostics ‘identifier’ fail
Page 177 and 178: Diagnostics initializer for static
Page 179 and 180: Diagnostics invalid use of undefine
Page 181 and 182: N Diagnostics negative width in bit
Page 183 and 184: R Diagnostics redeclaration of ‘i
Page 185 and 186: Diagnostics symbol ‘symbol’ not
Page 187 and 188: Diagnostics void expression between
Page 189 and 190: Diagnostics anonymous union declare
Page 191 and 192: Diagnostics comparison between sign
Page 193 and 194: duplicate ‘const’ The ‘const
Page 195 and 196: Diagnostics function might be possi
Page 197 and 198: Diagnostics ‘identifier’ is nar
Page 199: Diagnostics library function ‘ide
Page 203 and 204: Diagnostics shift count >= width of
Page 205 and 206: Diagnostics too many arguments for
Page 207 and 208: V Diagnostics __VA_ARGS__ can only
Page 209 and 210: MPLAB ® C COMPILER FOR PIC24 MCUs
Page 211 and 212: MPLAB C Compiler for PIC18 MCUs vs.
Page 217 and 218: E.1 INTRODUCTION E.2 HIGHLIGHTS MPL
Page 221 and 222: G.1 PREAMBLE MPLAB ® C COMPILER FO
Page 223 and 224: G.3 VERBATIM COPYING G.4 COPYING IN
Page 225 and 226: GNU Free Documentation License incl
Page 229 and 230: Glossary File Registers On-chip dat
Page 231 and 232: Glossary Machine Language A set of
Page 233 and 234: Glossary Stack, Software Memory use
Page 235 and 236: Symbols __builtin_add..............
Page 237 and 238: -fpack-struct .....................
Page 239 and 240: -idirafter.........................
Page 241 and 242: Peephole Optimization..............
Page 243 and 244: -Wsequence-point...................
show all

MPLAB C Compiler for PIC24 MCUs and dsPIC DSCs ... - Microchip

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?