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) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30748-2ce22a5f1f) Lines: 1881 2002 94.0 % Date: 2026-03-18 09:25:54 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57628765
Q_to_Fp	226838
Qdivii	143051708
Qdivis	1762584
Qdiviu	151407541
Zp_nosquare_m1	42
_serprec	8187500
addQp	4763000
addRc	310642887
addRq	1302
addTp	7
add_intmod_same	3410736
add_rfrac	3017228
add_rfrac_scal	8823769
add_scal	29398611
add_ser_scal	417278
addqf	77
addsub_frac	40739281
addsub_frac_i	14154030
addsub_polmod	7210
addsub_polmod_scal	13457868
addsub_pp	19974103
conj_i	31553103
conjvec	84
divRc	2885727
divRq	301
divTp	3674
div_T_scal	7293120
div_intmod_same	341549
div_polmod_same	37016
div_rfrac	1187496
div_rfrac_pol	260657
div_rfrac_scal	32435
div_scal_T	15557229
div_scal_pol	14531927
div_scal_rfrac	1052280
div_scal_ser	19096
div_ser	875766
div_ser_scal	1543591
divcR	23426056
divfq	42
divpT	1204910
divpp	13212334
divqf	63
divrunextu	213478788
fix_rfrac	206780
gadd	6244374214
gaddsg	270811770
gconj	390604
gdiv	452839773
gdivgs	13375053
gdivgu	61804567
gdivgunextu	1583803
ginv	38280890
gmul	8957544170
gmul2n	146040794
gmulsg	242478754
gmulug	283938432
gred_rfrac2	39473628
gred_rfrac_simple	57631881
gsqr	1343261499
gsub	2898239222
gsubsg	3267099
inv_polmod	189769
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24593692
mulRc	355419603
mulRq	2387
mulTp	4985881
mul_gen_rfrac	161376
mul_intmod_same	2985232
mul_polmod	2674945
mul_polmod_same	8532791
mul_polmod_scal	3219558
mul_rfrac	7910194
mul_rfrac_scal	10435434
mul_scal	197839870
mul_self_scal	7669128
mul_ser_scal	323974
mulcIR	11892180
mulcc	281541444
mulcxI	15654883
mulcxmI	2985886
mulcxpowIs	5563564
mulpp	17505470
mulqf	28
mulqq	1127
mulrfrac	38071888
pol2ser	6378555
quad_polmod_conj	18403
quad_polmod_mul	5860237
quad_polmod_norm	18403
rfrac_denom_mul_scal	9852085
ser_add	4094149
ser_normalize	7658
setfrac	15036250
sqr_polmod	419392
sqr_ser_part	113907
sqrq	70
sub_intmod_same	1017828
transtype	154217663
utoi_sign	65016377
warn_coercion	126

Generated by: LCOV version 1.16