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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - basemath - gen1.c (source / functions) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 94.0 % 2028 1906 Test Date: 2026-07-23 17:04:59 Functions: 100.0 % 104 104 Legend: Lines:     hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	112
divRq	301
mulqq	1127
addRq	1596
mulRq	2324
divTp	3674
addsub_polmod	7203
ser_normalize	7658
quad_polmod_conj	18725
quad_polmod_norm	18725
div_scal_ser	19292
div_rfrac_scal	32139
div_scal_rfrac	37767
div_polmod_same	38087
sqr_ser_part	114411
mul_gen_rfrac	161432
inv_polmod	192253
fix_rfrac	207018
Q_to_Fp	226838
div_rfrac_pol	262365
mul_ser_scal	326494
div_intmod_same	341510
gconj	390611
add_ser_scal	425209
sqr_polmod	426147
div_ser	908987
sub_intmod_same	1031401
div_rfrac	1187251
divpT	1204910
gdivgunextu	1583943
div_ser_scal	1608941
Qdivis	2587661
mul_polmod	2674945
add_rfrac	3017298
mul_intmod_same	3138784
mulcxmI	3166662
gsubsg	3271592
mul_polmod_scal	3288167
divRc	3408110
add_intmod_same	3416161
ser_add	4257657
addQp	4763203
mulTp	4985951
mulcxpowIs	5749844
quad_polmod_mul	5861735
pol2ser	6631815
div_T_scal	7412679
mul_rfrac	7910397
mul_self_scal	8028265
_serprec	8514516
mul_polmod_same	8646527
add_rfrac_scal	8812479
div_scal_pol	9254006
div_scal_T	9263698
rfrac_denom_mul_scal	9959295
mul_rfrac_scal	10454352
mulcIR	11901414
divpp	13216944
addsub_polmod_scal	13604334
addsub_frac_i	14584338
setfrac	15555742
mulcxI	15680734
mulpp	17506470
addsub_pp	19978757
mkpadic_mod	24599342
divcR	24801920
gdivgs	29789236
conj_i	32594433
mulrfrac	38175140
ginv	38808167
addsub_frac	41416482
add_scal	43070852
gred_rfrac	44825263
Leading_is_neg	57792183
gred_rfrac_simple	57797147
gdivgu	61985213
utoi_sign	65610124
Qdivii	144888811
Qdiviu	152532853
base_change	154407967
gmul2n	155003921
mul_scal	155047274
divrunextu	216119974
gmulsg	262157547
gaddsg	270842487
gmulug	283956448
mulcc	286495221
addRc	313300681
mulRc	360946891
gdiv	464235784
gsqr	1218312154
gsub	2937019855
gadd	6605015997
gmul	9175404839

Generated by: LCOV version 2.0-1