The C Standard Library

Barry McMullin

Last Modified: 29th March 1996

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• Introduction
• On Re-inventing Wheels
• Mechanics
• Implementation-defined Limits: limits.h
• Error Conditions: errno.h
• Utility Functions: stdlib.h
  • int atoi(char *s)
  • long atol(char *s)
  • void exit(int status)
• Input and Output: stdio.h
  • FILE *fopen(char *filename, char *mode)
  • int fgetc(FILE *stream)
  • int getchar(void)
  • int fputc(int c, FILE *stream)
  • int putchar(int c)
  • int fprintf(FILE *stream, char *format, ...)
  • int printf(char *format, ...)
  • int fscanf(FILE *stream, char *format, ...)
  • int scanf(char *format, ...)
  • int fclose(FILE *stream)
  • void perror(char *s)
• Diagnostics: assert.h
  • void assert(int status)
• Character Class Tests: ctype.h
• String Functions: string.h
  • char *strcpy(char *s, char *t)
  • char *strcat(char *s, char *t)
  • int strcmp(char *s, char *t)
• Mathematical Functions: math.h
  • double sin(double x)
  • double cosin(double x)
  • double tan(double x)
  • double asin(double x)
  • double acos(double x)
  • double atan(double x)
  • double atan2(double y, double x)
  • double exp(double x)
  • double log(double x)
  • double log10(double x)
  • double pow(double x, double y)
  • double sqrt(double x)
• Conclusion
• Copyright