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The type of conversion performed on the arguments in a function call depends on the presence of a function prototype (forward declaration) with declared argument types for the called function. If a function prototype is present and includes declared argument types, the compiler performs type checking (see Functions). If no function prototype is present, only the usual arithmetic conversions are performed on the arguments in the function call. These conversions are performed independently on each argument in the call. This means that a float value is converted to a double; a char orshort value is converted to an int; and an unsigned char or unsigned short is converted to an unsigned int. |
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