Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - language - init.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30472-f680168c62) Lines: 1138 1488 76.5 %
Date: 2025-08-17 09:23:55 Functions: 134 162 82.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66120602
bl_rotright 60447126
blockbalance 2854931551
blockdelete 1578094242
blockheight 11881743016
blockinsert 1730808878
cgetg_copy_avma 1052854567
cgetlist_avma 620
chk_gc_upto 0
clone_lock 386316247
clone_unlock 327036051
clone_unlock_deep 59316312
clonesearch 772368589
copy_bin 497062218
copy_bin_canon 16
dbg_fill_stack 0
dbg_gc_upto 0
dbg_stack 0
debug_stack 0
dflt_err_recover 0
dflt_pari_quit 0
dflt_sigint_fun 0
dochk_gc_upto 0
err_init 13816
err_init_msg 13676
err_recover 13035
errname 27109
export_add 59
export_del 24
export_get 1499
exportall 6
f_getheap 6664
fix_height 3085991826
fix_size 686194
gc_all_unsafe 27954713
gc_dec 6031803280
gc_slice_unsafe 328352780
gc_stack_update 1238421587
gclone 237166929
gclone_refc 0
gcloneref 37881
gcopy 4792018279
gcopy_av0 4026414043
gcopy_av0_canon 32
gcopy_avma 3342626287
gcopy_lg 742
gdisplay 3689
gerepile 0
getabstime 1912
getdebugvar 340764
getheap 84
getstack 7
gettime 3718
getwalltime 8
gp_context_restore 13110
gp_context_save 144607
gsizebyte 175
gsizeclone 237166739
gsizeclone_i 3435848514
gsizeword 2214450
gunclone 388163593
gunclone_deep 3278581162
icopy_avma_canon 12
init_universal_constants 1900
is_in_block 233828052
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 14
newblock 237949754
numerr_name 27109
obj_check 6033155
obj_checkbuild 1506912
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568463
obj_checkbuild_realprec 399086
obj_free 187243
obj_init 2532748
obj_insert 2661128
obj_insert_shallow 173523
obj_reinit 42
os_signal 20840
pari_add_defaults_module 1900
pari_add_module 1890
pari_close 1890
pari_close_blocks 336069
pari_close_export 1890
pari_close_opts 1890
pari_daemon 76
pari_err 56807
pari_err2GEN 56795
pari_err2str 21841
pari_err_display 13056
pari_err_last 87496
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 342663
pari_init_defaults 1900
pari_init_errcatch 343107
pari_init_export 1900
pari_init_functions 1900
pari_init_opts 1900
pari_init_timer 1900
pari_mainstack_alloc 343102
pari_mainstack_free 343092
pari_mainstack_malloc 343102
pari_mainstack_mextend 463435
pari_mainstack_mfree 343092
pari_mainstack_mreset 463435
pari_mainstack_resize 438
pari_mainstack_setsize 463435
pari_mainstack_use 342661
pari_sig_init 3790
pari_sighandler 0
pari_sigint 0
pari_stackcheck_init 344562
pari_thread_alloc 340764
pari_thread_close 341590
pari_thread_free 340764
pari_thread_get_global 340764
pari_thread_init 342662
pari_thread_set_global 340726
pari_thread_start 340762
pari_thread_valloc 0
pari_version 7
pari_warn 760
paristack_alloc 1900
paristack_newrsize 445
paristack_resize 0
paristack_setsize 0
parivstack_reset 120333
parivstack_resize 0
pop_entree_block 389354
rndus 219368
setalldebug 1928
setdebug 127
setdebugvar 340723
shiftaddress 3121531270
shiftaddress_canon 24
taille0 4026313143
taille0_canon 32
timer 0
timer2 0
timer_aux 219360
timer_delay 110580
timer_get 1918
timer_printf 0
timer_start 356011
timer_vprintf 0
timetoi 8
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134392528
walltimer_delay 106862
walltimer_get 0
walltimer_start 250815

Generated by: LCOV version 1.16