信号：SIGABRT（中止）@ realloc

Z时代
2024-01-10
分类：问答

我想添加一个c字符串的扩展名，但我只是得到信号：SIGABRT（中止），谁能告诉我这是什么原因？这是我到目前为止已经完成，错误出现@ realloc的函数“prepareFileName”：信号：SIGABRT（中止）@ realloc

#include <stdio.h> 
#include <string.h> 
#include <stdlib.h> 
#define OUT_OF_MEMORY 3 
#define FILE_EXTENSION ".txt" 
typedef enum _Bool_ // enum _Bool_ is a non-typedef'ed enum 
{ 
    FALSE = 0, // Enum element 
    TRUE = 1 // Enum element 
} Bool; // Bool is the typedef'ed enum 
Bool cStringEndsWith(const char *sourceString, const char *suffix) { 
    if (!sourceString || !suffix) // Check for not null pointer 
    { 
    return FALSE; 
    } 
    size_t length_of_c_string = strlen(sourceString); 
    size_t length_of_suffix = strlen(suffix); 
    if (length_of_suffix > length_of_c_string) { 
    return FALSE; 
    } 
    int compare_result = strncmp(sourceString + length_of_c_string - length_of_suffix, suffix, length_of_suffix); 
    if (compare_result == 0) { 
    return TRUE; 
    } else { 
    return FALSE; 
    } 
} 
int prepareFileName(char **ptr_file_name){ 
    int ends_with_file_extension = cStringEndsWith(*ptr_file_name, FILE_EXTENSION); 
    if(!ends_with_file_extension) 
    { 
    char *new_ptr_file_name = realloc(*ptr_file_name, strlen(*ptr_file_name) + strlen(FILE_EXTENSION) + 1); 
    if(!new_ptr_file_name) 
     return OUT_OF_MEMORY; 
    *ptr_file_name = new_ptr_file_name; 
    strcat(*ptr_file_name, FILE_EXTENSION); 
    } 
} 
int main() 
{ 
    char *file_name = "testFileName"; 
    printf("Filename unprepared: \"%s\"", file_name); 
    prepareFileName(&file_name); 
    printf("Filename prepared: \"%s\"", file_name); 
    return 0; 
}