Print the array to a string instead of the screen.  
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| AFAPI void | toString (char **output, const char *exp, const array &arr, const int precision=4, const bool transpose=true) | 
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| AFAPI const char * | toString (const char *exp, const array &arr, const int precision=4, const bool transpose=true) | 
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| AFAPI af_err | af_array_to_string (char **output, const char *exp, const af_array arr, const int precision, const bool transpose) | 
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Print the array to a string instead of the screen. 
This function is similar to af::print, except that it prints to a string rather than to screen.
§ af_array_to_string()
      
        
          | AFAPI af_err af_array_to_string | ( | char ** | output, | 
        
          |  |  | const char * | exp, | 
        
          |  |  | const af_array | arr, | 
        
          |  |  | const int | precision, | 
        
          |  |  | const bool | transpose | 
        
          |  | ) |  |  | 
      
 
- Parameters
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    | [out] | output | is the pointer to the c-string that will hold the data. The memory for output is allocated by the function. The user is responsible for deleting the memory. |  | [in] | exp | is an expression, generally the name of the array |  | [in] | arr | is the input array |  | [in] | precision | is the precision length for display |  | [in] | transpose | determines whether or not to transpose the array before storing it in the string |  
 
 
 
§ toString() [1/2]
      
        
          | AFAPI void af::toString | ( | char ** | output, | 
        
          |  |  | const char * | exp, | 
        
          |  |  | const array & | arr, | 
        
          |  |  | const int | precision = 4, | 
        
          |  |  | const bool | transpose = true | 
        
          |  | ) |  |  | 
      
 
- Parameters
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    | [out] | output | is the pointer to the c-string that will hold the data. The memory for output is allocated by the function. The user is responsible for deleting the memory using af::freeHost() or af_free_host(). |  | [in] | exp | is an expression, generally the name of the array |  | [in] | arr | is the input array |  | [in] | precision | is the precision length for display |  | [in] | transpose | determines whether or not to transpose the array before storing it in the string |  
 
 
 
§ toString() [2/2]
      
        
          | AFAPI const char* af::toString | ( | const char * | exp, | 
        
          |  |  | const array & | arr, | 
        
          |  |  | const int | precision = 4, | 
        
          |  |  | const bool | transpose = true | 
        
          |  | ) |  |  | 
      
 
- Parameters
- 
  
    | [in] | exp | is an expression, generally the name of the array |  | [in] | arr | is the input array |  | [in] | precision | is the precision length for display |  | [in] | transpose | determines whether or not to transpose the array before storing it in the string |  
 
- Returns
- output is the pointer to the c-string that will hold the data. The memory for output is allocated by the function. The user is responsible for deleting the memory using af::freeHost() or af_free_host().